Option Selection Report Version 1
Project Name: Crossrail Step Free Access Langley Mainline Railway Station OP Reference: 317520/MMRA/WO023/0003
Sponsor/Client: Crossrail
Project Manager:
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Contents 1 EXECUTIVE SUMMARY 1 2 OPTIONS REPORT & CONCEPT DESIGNS 2 2.1 Selected Option 4 2.1.1 Station Access 5 2.1.2 Platform Access 5 2.2 Discarded Options 5 2.2.1 Viable Options 5 2.2.2 Non Viable Options 6 2.3 Constructability Assessment 6 2.4 Access and Possession Strategy 7 2.5 Project Schedule 7 2.6 Whole Life Cost Assessment of Options 7 2.7 Estimates (excluding whole life costings) 8 2.8 QRA 8 2.9 Risk Register 8 2.10 Assumptions 8 2.11 Signed Design Compliance Certificate 8 2.12 Asset Condition Surveys / GI / Topographical 8 3 INTERFACES WITH OTHER PROJECTS 8 4 CDM INFORMATION 9 5 SAFETY VERIFICATION RECOMMENDATIONS 9 6 CONSENTS STRATEGY 10 7 ENVIRONMENTAL IMPACT ASSESSMENT 10 8 MAINTENANCE AND OPERATIONS STRATEGY 10 9 ENGINEERING OUTPUTS 10 10 CONCLUSION AND RECOMMENDATIONS 10 11 FORMAL ACCEPTANCE OF SELECTED OPTION BY CLIENT, FUNDERS AND STAKEHOLDERS 11 APPENDICES 12
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APPENDICES
A. Information received B. Description of accessible route C. Listing of works required D. Photos E. Drawings F. Risk register G. Information required H. Hazard log I. Investigation reports / summaries J.
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Issue Record
Issue No Brief History Of Amendment Date of Issue 00 Draft Issue 06/12/2013 01 First Issue 19/12/2013
Distribution List
Name Organisation Issue No.
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1 Executive Summary This option selection report describes a solution to providing an accessible route with step free access to all platforms at Langley Station. The preferred solution is to construct a new footbridge to the east of the station building. The footbridge will have Network Rail standard 16 person lifts and stairs to all platforms. The existing footbridge will be retained. The proposed works have been considered with respect to all relevant disciplines. The resulting recommendation thus provides a step free access route with minimal modification of the existing station infrastructure and reasonable maintenance costs. There are no major issues or abnormal risks anticipated with the construction of the new bridge. The estimated scheme cost is
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2 Options Report & Concept Designs
Study Scope This Option Selection Report considers how step free access can be provided to the platforms at Langley Railway Station. This station is located on the Great Western Mainline some 19 miles west of London at ELR MLN1 16 miles 18 chains, in Langley, a suburb of Slough in Berkshire. At this location the railway runs on a shallow embankment and at the western end runs on a bridge over the B470 Station Road. Location Plan
Source: Google Earth Pro. Licence number JCPMKDSJZFMCABS This Option Selection Report covers the following areas:-
Civil and structural engineering Planning and aesthetics Mechanical & Electrical engineering Lift requirements and specification Telecoms
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in use by locked gates and separating platform fencing, however platform 2 access is uncontrolled. The train to platform interface, and means of boarding or alighting trains is not covered by this study. The basic requirements of an accessible route are that it shall be:- step free &/or have ramps of restricted gradient and length meet requirements for minimum width have appropriate non slip finishes have adequate signage be lit to appropriate levels be free of constraints and obstacles This study does not address the provision or suitability of other facilities at the station for persons of reduced mobility, beyond the basic provision of the accessible route. Items such as ticket sales facilities, waiting provision and customer information systems, etc are not considered in any detail and are not assessed for compliance with the relevant requirements.
2.1 Selected Option
The preferred option for step free access at this station is to build a new two span bridge with three associated lifts and stairs to all platforms. The new footbridge will be located to the east of the station building with the existing western footbridge being retained. From a visual inspection there are no anticipated structural issues with constructing the new footbridge. The bridge spans are anticipated to be approximately 13m each. There are no significant planning or aesthetic issues anticipated with the construction of the new bridge. There is adequate space on Platforms 2/3 and 4 to accommodate Network Rail standard 16 person lifts with associated free standing lift motor rooms. In order to provide lift access to Platform 1, locally the platform will require widening along the southern face of the platform, within the embankment. This land is included within the freehold lease boundary noted on the station lease plan included in Appendix E. It is anticipated that the lift shafts will be clad in masonry at the lower level, with profiled metal sheet cladding above. It is likely that the trestles, stairs, lift shafts and pits will require piled foundations. From the information we have received, there are no anticipated geotechnical issues with excavation or new foundations at the station, however further investigation will be required to verify this assumption prior to further design stages. There will be works to upgrade the existing electrical supply and distribution systems at the station, including some re-design of other proposed Crossrail station enhancement works which have not yet been constructed. In addition, the telecommunications and lighting systems will need to be integrated with the new footbridge. At present we have not received any information regarding overhead line electrification of Langley Station other than basic OLE post locations. This interface should be addressed at the next stage of design. Areas for temporary site facilities and access for construction equipment are not limited at Langley Station, including a Network Rail owned yard to the east of the station car park that could be utilised. The outline costings for the selected option have been included in section 2.7.
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2.1.1 Station Access
At Langley step free access to the station building and Platform 4 is from a car park and drop off area to the north of the station. Passengers can use the ticket hall or uncontrolled gates to either side of the building for station access. It may be beneficial to rearrange the step free route as at present the disabled parking spaces are at the opposite end of the car park to the location of the proposed bridge. Moving the disabled parking spaces closer to the proposed bridge and dropping the kerb closest to the spaces would reduce the required travel distance for people with reduced mobility. Future stages of design should review this matter in more detail. Access to the station is also available via a path to Platform 1. This route is not suitable for all persons with reduced mobility due to its steep gradient. It has also been noted that this access point will likely be closed in the future to avoid the existing station footbridge being used as a through-route. As full step free access will be available from the north car park to all platforms, this secondary route to the station will not be enhanced.
2.1.2 Platform Access
Step free access to Platform 4 is currently available via uncontrolled gates to the east and west of the main station building and through the station building. Step free access to platforms 2 and 3 is currently unavailable with the existing access via the footbridge. The footbridge is also the main access to Platform 1, with step free access available via the steep narrow path from Station Road, which is not suitable for all users. Platform 2/3 at present are accessed via the existing footbridge. The new footbridge will provide step free access to all platforms. The height from the top of rail to the underside of the new bridge will be 5.7m to provide adequate clearance for electrification works. The total rise of the stairs to both platforms will be approximately 5.1m. With minimum compliant goings and risers of 300mm and 150mm, respectively, the stairs will be 11.2m long with one intermediate landing of 1.2m length. The new lifts on all platforms will be Network Rail standard 16-person through lifts with outer lift shaft dimensions of 2400mm x 2400mm. The lifts will be located on the east side of the footbridge. The lift motor rooms will be located below the stairwells. Installation of the new footbridge will require relocation of a number of station services including lighting, signage and possibly the temporary removal of mid platform DOO screen. Coordination with Crossrail DOO Camera positions will be required. In addition in order to accommodate the lift and stairs on the narrow platform 1, local platform widening is required. This can be achieved within the Network Rail boundaries and apart from temporary closure during construction should not impact the adjacent footpath. Furthermore vegetation clearance will be required in order to accommodate the lift and stairs on platform 4.
It is not anticipated that there will be any works under this scheme to enhance the existing footbridge.
2.2 Discarded Options
2.2.1 Viable Options
During development of the proposal for step free access for this station a number of options were considered. Many of these were quickly discounted due to feasibility issues.
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New footbridge with ramps Providing a bridge with ramps would most likely provide the lowest whole life cost. This option would be the most basic approach which whilst technically providing a step free access, would not provide a pleasant passenger experience. This option would also have the largest footprint and biggest aesthetic impact of any of the options. Significant work would be required to construct a ramp on the embankment to the rear of Platform 1. New footbridge with lifts only Providing a bridge with lift access only would cost less to construct and as there is secondary stepped access it would be feasible. This would likely lead to increased pressure on the use of lifts at peak times and in turn hinder the accessibility for people of reduced mobility.
2.2.2 Non Viable Options
Install lifts / ramps to existing footbridge It is not feasible to modify the existing footbridge due to close proximity of the footbridge to the platform edge and the hipped design. Replacement footbridge at existing location with lifts / ramps Replacing the footbridge would not be cost effective due to the need for a temporary footbridge during construction. Ramps would also not be possible due to the limited platform space.
2.3 Constructability Assessment
Access to all platforms will be retained via the existing footbridge during construction Excavation will be required for the new footbridge, lifts and stairs. At this stage, it is anticipated that the stairs, trestles and lifts are constructed using piled foundations. A geotechnical desk study has been undertaken for the purpose of this report, however further investigation will be required during design development. The extent of site compounds required on platforms will need to be reviewed during the next works stage. The proposed works will need to be resolved with other Crossrail station enhancement works. For Langley Station there are other proposed works outlined in the Form A – Civils GRIP 4 Design report. Buried services are outlined in drawing WSN1B-ECV-DRG-AEA-000445. This indicates a potential clash between longitudinal telecoms cables on platforms 1 and 4 and electricity cables on all platforms. In addition, drawing WSN1B-ECV-DRG-AEA-000504 indicates proposed longitudinal telecoms cabling on all platforms which will clash with proposed works. These will need to be diverted and cable pits relocated prior to construction of the new footbridge. The bridge has been located to avoid the proposed OLE supports, however there are proposed CCTV columns and CIS screens on all platforms which will be in the vicinity of the footbridge lifts and stairs, and consideration will need to be given as to whether they should be relocated to maintain coverage of the station. Drawing WSN1B-ECV-DRG-AEA-000445 indicates that there is no existing drainage on the platforms in the vicinity of the proposed footbridge. It will therefore be necessary to consider surface water runoff from the new footbridge, stairs and lifts. This may require new manholes and soakaways. It is anticipated that the main structural elements will be fabricated off site and transported to the station. Large capacity cranes will therefore be required to lift and install these elements due to the reach required. It is anticipated that the crane lift point will be from the station
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carpark / adjacent yard to the north of the station. Crane reaches could be reduced if the car park of the office building to the south of the station could be used for the erection of the Platform 1 structures. Local strengthening of the road surface may be required to facilitate the lifting operations. To accommodate the bridge, lighting columns on all platforms will need to be removed along with an advertising board and temporary removal of a DOO screen. Coordination of the design with the DOO cameras will need to be taken into account. The works to Platform 1 will require widening of the platform onto the existing embankment and removal / realignment of the local station perimeter fence. During these works, the public footpath which runs parallel to the platform may require appropriate pedestrian management.
2.4 Access and Possession Strategy
It is anticipated that the installation of the new footbridge, lifts and stairs, together with any other works that disrupt passenger access, could be carried out during weekend or other night time possessions. At this stage no check has been made as to the availability of other longer booked possessions that might achieve cost benefits through reducing the overall construction programme. No land purchase is needed for this scheme, but there will be a need to update station lease agreements. While no planning constraints are applicable, it would be expected that the Local Authority be consulted on the proposals. During the works, a compound area is proposed in the station or adjacent car park for site office and welfare facilities. A compound in the car park would require temporary removal of several parking spaces, but access to the station building and drop off points will need to be retained. During the design stage there will be a need to consider and liaise with Network Rail and the Station Duty Holder to ensure safe platform access can be maintained during the works for passengers and staff, and that safe emergency evacuation is not compromised.
2.5 Project Schedule
There is sufficient time to undertake the design and construction of this scheme prior to the introduction of Crossrail services in 2018. There are no published dates for the completion of Crossrail works to existing stations, but we anticipate that GRIP 3 & 4 design stages (Forms F001 & F002) could be completed in 20 weeks (including outstanding surveys and investigations), GRIP 5 design (Form F003) in a further 26 weeks, and construction in 34 weeks. These durations do not allow for Crossrail authorisation periods or mobilisation periods as may be needed. Availability of Access (Possessions and Isolations) will need to be considered.
2.6 Whole Life Cost Assessment of Options
Specific details to inform whole life costings are not provided at this stage, but the new structures will have a design life of 120 years. Maintenance painting of new external steel structures will be required, while the lifts will requirement ongoing maintenance in accordance with normal Network Rail practices.
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2.7 Estimates (excluding whole life costings)
The construction cost estimate is The build up of this cost is provided in Appendix J.
2.8 QRA
A quantitative risk assessment has not yet been conducted. This should be discussed and scheduled when input from Network Rail is sought.
2.9 Risk Register
See Appendix F for an outline risk register. Key risks identified are: Unknown ground conditions Unidentified buried services Interfaces with other Crossrail works Other potential projects at the station
2.10 Assumptions
The following assumptions have been made in developing the proposals regarding any existing structures, earthworks or permanent way: The ground conditions are not prohibitive to works. The ability of the station to cater for increasing passenger numbers over time will not be compromised by the proposed scheme. The ability of the station to perform a safe emergency evacuation will not be compromised by the proposed scheme
2.11 Signed Design Compliance Certificate
This study should include a signed Network rail DCC which should be attached as an appendix when complete.
2.12 Asset Condition Surveys / GI / Topographical
Refer to the appendices for summary details of surveys undertaken during this study.
3 Interfaces with other projects
This project will interface with other station improvements as part of Crossrail. We have received the Civils Form A for GRIP 4 design (doc ref: WSN1B-ECV-FOA-AEA-00002) which includes changes to the lighting and ducting on the existing footbridge. Drawings also show proposed new works: New telecoms and electrical runs
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New CIS and CCTV Install OLE The proposed longitudinal telecoms and electricity cables will clash with the proposed bridge and will need to be rerouted. Proposed CIS and CCTV columns local to the bridge will need to be relocated to suit new bridge and ensure adequate provision for platforms. Coordination will be required with existing DOO camera installations. The proposed bridge has been designed considering the planned OLE mast locations to avoid clashes.
4 CDM Information
Refer to Appendix F for a Risk Register. No abnormal risks associated with construction have been identified. Access for maintenance of the upper levels of the lift shaft cladding and the lift shaft roofs should be addressed at detailed design stage. At this time access during possessions via temporary scaffolding is perceived as a viable method.
5 Safety Verification Recommendations
Information with regards to the applicability of ROGS is to be provided by Network Rail. However, the following issues should be considered during the future design stages: Signal sighting. A formal signal sighting committee should confirm the acceptability of the proposals. At the GRIP 3 stage a strategy for ensuring compliance with the Technical Specification for Interoperability for Persons of Reduced Mobility should be established and implemented thereafter. Implementation of appropriate systems to ensure compliance with European, British, Network Rail and Railway Group Standards. The design should address the safe management of change in station operation, (and during construction), allowing the train operating company to undertake their Safety Management Systems appraisal without resulting in undue restrictions to station operation.
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6 Consents Strategy
No formal consents from parties external to Network Rail and Crossrail have been identified for this scheme.
7 Environmental Impact Assessment
No significant environmental issues have been identified at this station. See Appendix I for details of the environmental assessment undertaken as part of this study.
8 Maintenance and Operations Strategy
The proposed lifts will need to be added to existing maintenance and operations strategy. Although CTOC will staff the station at all operating times it is prudent to include provision for reporting of lift failure or maintenance requirements by passengers and staff.
9 Engineering Outputs
To develop this scheme in the future, a design should be progressed in accordance with the Network Rail GRIP processes. The next stage should be the development of a GRIP 3 outline design, presented under cover of a Form F001. In addition to the outline design and associated scheme drawings, the Form F001 should also include the findings of the additional investigations as set out in Appendix G.
10 Conclusion and Recommendations
This option selection report provides a solution to providing an accessible route with step free access to all platforms at Langley Station. The preferred solution is to install a new footbridge to the east of the existing station building. The proposed works have been considered with respect to numerous relevant disciplines. The resulting recommendation thus provides a step free access route with minimal modification of the existing station infrastructure and reasonable maintenance costs.
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11 Formal Acceptance of Selected Option by Client, Funders and Stakeholders
Client:
Comments:
(comments or notes from client to be held here)
Acceptance: Date:
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Appendices
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Appendix A Information Received
Document Reference Inspection Report for Civil Engineering Condition Assessment WSN1B/ECV/REP/AEA/000007
Form A - Civils WSN1B/ECV/FOA/AEA/000002
Ground Investigation Factual Report WSN1B/EGE/REC/AEA/000021
Outer West Surface Stations: GRIP 4 Geotechnical Design Report WSN1B/EGE/REC/AEA/00007
Building Evaluation and Assessment WSN1B/EST/ASS/AEA/000001
Form A – Bridge Structures WSN1B-EST-FOA-AEA-000002
Access for All Station Assessment Trevor Patrick Partnership
Drawings Reference
Platform 1 Civils - Sheet 1 WSN1B/ECV/DRG/AEA/000401
Platform 1 Civils - Sheet 2 WSN1B/ECV/DRG/AEA/000402
Platform 1 Civils - Sheet 3 WSN1B/ECV/DRG/AEA/000403
Ducts and Containment Civils - Sheet 4 WSN1B/ECV/DRG/AEA/000404
Sections and Details Sheet 2 WSN1B/ECV/DRG/AEA/000441
Sections and Details Sheet 3 WSN1B/ECV/DRG/AEA/000442
Buried Services WSN1B/ECV/DRG/AEA/000445
Pantograph Gauge Clearances WSN1B/EOH/DRG/AEA/000400
Platform 4 Existing Canopies Modifications WSN1B/EST/DRG/AEA/000400
New Cable Run General Arrangement WSN1B/EST/DRG/AEA/000420
Langley Station Lease Plan Plan No. 27124
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Appendix B Description of accessible route
From drop of points and disabled spaces in the car park, passengers can access the ticket office and platform 4 via step free routes. To access platforms 1, 2 and 3 they then use the lift up to the new footbridge, travel along the bridge and then down a lift to their required platform.
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Appendix C Listing of works required
Works Extent of Works Clear vegetation Beneath footprint on platform 1 and 4 Demolish / relocate billboard Island platform Locate and slew / remove services All platforms Build foundations (assume piled) Assume 36no 8m Build pile caps and lift pits 9no pile caps 3no lift pits Build platform widening on platform 1 Approx 50m2 Build platform 1 wall / retaining wall Approx 20m long and 1.5m high Lift the lift tower steel work into place 3no 9m tall Clad lift towers 3no Lift bridge support trestles into place 3no Bridge spans - bridge to be fully covered and 2no approximately 13m span x 2.5m width x 3.5m glazed high Lift bridge spans into place 2no Lift stairs into place 3no Install drainage systems Install lifts 3no Install Cameras and other comms Install M&E Reinstate services Resurface make good platform Install relocated fencing
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Appendix D Photos
Ariel View of station Source: Google Earth Pro. Licence number JCPMKDSJZFMCABS
Ticket hall from car park
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View from existing footbridge over lines 1&2
Existing footbridge
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View from footbridge looking east
View from east end of Platform 1
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Footpath from road to Platform 1
Side entrance nearest to proposed bridge
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Appendix E Drawings
Drawing Reference
Langley Station Plan Layout 317520/MMRA/WO023/DRG/00031
Langley Station 3D Visualisation 317520/MMRA/WO023/DRG/00032
Langley Station Lease Plan No. 27124
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Appendix F Risk Register
Risk Level of Risk Mitigation Necessity for track closures Medium No track closures should be necessary for the works, but use of line of route or other planned possessions will be required to allow construction. Design should allow for ease of construction in the railway environment Electricity supply at station High The electric power supply to insufficient for lifts. the station will be probably need to be updated for the lifts. Allowance included in construction cost. No ground surveys have been Medium No obvious problems were carried out to confirm the found from a visual suitability of the proposed inspection but not all areas location for lift. could be inspected. An allowance has been added to the estimated cost for unforeseen risk. (contingency) Network Rail approval. Low Consideration has been given to signal sighting but a formal assessment should be carried out. Other works may be planned at Medium Liaison with all stakeholders this station, which are not at start of design stage. identified at the start of the detailed design Uncoordinated interface between Low Liaison with Crossrail design the Access for All scheme and teams. other Crossrail works
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Appendix G Information required
By Investigation A full geotechnical investigation will be required Electrical demand investigation Lighting intensity assessment Surface slip testing Drainage survey (Passenger flow / capacity assessment excluded from this study)
Additional Documentation Historic drawings (station buildings and bridges) Services records Fire evacuation strategy Operational management plan Asset management plan Details of proposed OLE installation Details of any other planned works at the station (including by the TOC)
Other Inputs from discussions with Network Rail RAMs (not achieved to date)
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Appendix H Hazard Log
Known hazards at the site: Working in close proximity to operational lines. Buried Services
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Hazard Log: Langley (ELR – MLN1) Mileage Mileage Hazard System Local Name Free Text Track From To Description Reference Buried @Note: There could be buried telecoms cables throughout this ELR. If details of Between Paddington All/Multiple 0.0000 246.0638 Telecommunication cable location are known this cable MUST be identified first before any ground 60325997 and Plymouth Tracks Cables penetration work is carried out.@ DOG KENNEL GRADE II LISTED BRIDGE - SHOULD YOU WISH TO UNDERTAKE ANY All/Multiple 15.0526 16.1351 Listed Building BRIDGE IVER WORKS TO THIS STRUCTURE IT WILL BE NECCESSARY TO OBTAIN THE 60326234 Tracks BUCKS LISTED BULDING CONSENT FOR THESE WORKS LANDFILL GAS. This stretch of railway has been identified as being at risk from All/Multiple 15.0726 15.1540 Landfill Gases Hollow Hill the migration of landfill gasses. Appropriate precautions should be taken. For 60160226 Tracks further information please contact NST Mining 01332 262716. TQ033798-1-176 National Grid Nil return for Nat Grid at this location None - All/Multiple 15.0990 18.0352 Buried Service Iver/Dolphin/Langley 60153683 HAZARD V.10 Tracks TQ022797-176 Agmts 96790, 100346 & Transco re 2x gas mains under line c20m All/Multiple 15.1194 15.1232 Buried Gas Pipe Langley 60156042 E of old UBr site. HAZARD V.10 Tracks Restricted Langley - Market All/Multiple 15.1232 15.1232 Limited Clearance - All Lines. 110147393 Clearance Lane Tracks Hazard Associated TQ024798-176 3" stone barrel Culverts
15.1650 16.0220 Buried Plant Cable Langley Oil Sidings TQ017797-176 Agreement 101742 shows plant lighting layout. Up Siding 60163072
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Buried Electrical All/Multiple 15.1672 15.1672 Langley TQ018797-176 Agreement 66976 re cables under line. HAZARD V.10 60156040 Cables Tracks Langley - Shunters TQ015798-176: Nearest postcode: SL3 6EA - - From cabin through car park, Authorised Access All/Multiple 15.1672 15.1672 Cabin to Langley Oil through gate between Oil Terminal fence and Up relief platform, then proceed 60108243 Point - Pedestrian Tracks Terminal along walkway to siding gate. All/Multiple 15.1683 16.0424 Site Contamination Langley Oil Langley Oil Sidings. 110149143 Tracks TQ015798-176: Nearest postcode: SL3 6EA - 8metres/9 yards from the railway- Authorised Access Langley Station to All/Multiple 15.1748 16.0396 Via Up relief Platform
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Buried Electrical TQ012797-176 Agmts 53952, 59954, 81402 & 98234 re hv cables under each All/Multiple 16.0506 16.0506 Langley 60156038 Cables side of road at UBr. HAZARD V.10 Tracks TQ012797-176 Agmts 63493, 66599 & 87059 re gas mains under road at UBr, All/Multiple 16.0506 16.0506 Buried Gas Pipe Langley with spur to premises at W end of up side station approach, c17m N of up relief 60156039 Tracks cess rail. HAZARD V.10 TQ009798-1-176 Cable and Wireless
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TQ004798-176: Nearest postcode: SL3 7ES 64metres/69 yards from the railway-. Authorised Access Deseronto Industrial From A4 north on B470 Langley High St through Langley, turn left into Langley 16.1210 16.1210 Up Slow 60134026 Point - Pedestrian Estate Rd, right into St. Mary"s Rd over railway bridge into Deseronto Industrial Estate. Pedestrian access through gate in car park to Up relief side of running line Buried TQ003798-176 British Telecom 2 x cables under each side of road at OBr. All/Multiple 16.1232 16.1232 Telecommunication Langley 60115925 Telecom Cable - RAR Code: HOT or HBT - HAZARD V.10 Tracks Cables Restricted Dolphin Jn - All/Multiple 16.1276 16.1276 Limited Clearance - Down and Up Main and Down Relief. 110147395 Clearance Trenches footbridge. Tracks TQ005798-1-176 Central Electricity Generating Board Agreement 98892 re 132kv Buried Electrical All/Multiple 16.1298 16.1298 Langley cables under line E of OBr. High Voltage Cable - RAR Code: HOE or HBE - 60156035 Cables Tracks HAZARD V.10 All/Multiple 16.1452 16.1474 Buried Water Main Langley M72936 W.J.Johson Water & Electric near main line. 60289224 Tracks Buried Electrical All/Multiple 16.1452 16.1474 Langley M72936 W.J.Johson Water & Electric near main line. 60289223 Cables Tracks Buried Electrical All/Multiple 16.1474 16.1474 Langley M95513 Southern Electricity Board Electric cable near main line. 60289225 Cables Tracks TQ002799-1-176 Transco Agreement 79777
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under SW approaches to property to that side. High Voltage Cable - RAR Code: HOE or HBE - HAZARD V.10
Buried Foul Water TQ002799-1-176 Thames Water Agreement 63999
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SU997799-1-176 Slough Corporation Agreement 37409 re water main under road All/Multiple 17.0407 17.0407 Buried Water Main Slough 60156047 at OBr. High Pressure Water - RAR Code: HBW - HAZARD V.10 Tracks Buried Electrical SU988799-176 Southern Electric Agreements 61530, 91963 & 99448 re 6.6kv & All/Multiple 17.0408 17.0430 Slough 60156029 Cables other cables under each side of road at OBr. HAZARD V.10 Tracks GRADE II LISTED RAILWAY BRIDGE - SHOULD YOU WISH TO UNDERTAKE MIDDLEGREEN All/Multiple 17.0409 18.1350 Listed Building ANY WORKS TO THIS STRUCTURE IT WILL BE NECESSARY TO OBTAIN 60326236 ROAD SLOUGH Tracks THE LISTED BUILDING CONSENT FOR THESE WORKS SU997799-176 Agreement 82278 re water main on piers over line on W side of All/Multiple 17.0418 17.0418 Overhead Services Dolphin Junction 60160915 OBr. Tracks SU996799-1-176 Thames Water Agreement 82278
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Appendix I Investigation reports / summaries
I.1 Environmental Report I.2 Geotechnical Summary I.3 Electrical Summary I.4 Telecommunications I.5 Lifts I.6 Signal sighting
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Appendix I.1 Environmental Report
Environmental Appraisal/ Action Plan
317520
Project Name: Crossrail Step Free Access
Langley Railway Station Sponsor: Crossrail 317520/MMRA/WO023/ENV/0003 Project Manager:
Signature Name: Job Title: Ecologist Date: Dec 2013
Page 1 of 24 Environmental Appraisal/Action Plan Project: Structures Package 1b Date: Dec 2013 Version: Rev A
CONTENTS
1 INTRODUCTION ...... 3 2 PURPOSE ...... 3 3 SCOPE AND PROJECT DESCRIPTION ...... 3 4 ENVIRONMENTAL ISSUES FROM EARLIER GRIP STAGES ...... 3 5 GENERAL RISKS ...... 4 6 AGRICULTURE /FORESTRY/VEGETATION MANAGEMENT ...... 7 7 AIR QUALITY ...... 7 8 BUILDING, STRUCTURES, HISTORIC ASSOCIATION ...... 8 9 CONTAMINATED LAND ...... 8 10 ECOLOGY (PROTECTED SPECIES/AREAS AND INVASIVE SPECIES) ..... 9 11 LANDSCAPE/TOWNSCAPE/VISUAL...... 10 12 NUISANCE: NOISE, VIBRATION AND LIGHT ...... 11 13 TRAFFIC GENERATION AND ACCESS ...... 12 14 WATER RESOURCES, POLLUTION (INCLUDING SILT) AND DRAINAGE 12 15 WASTE/SURPLUS MATERIAL ...... 13 16 SUSTAINABILITY: ENVIRONMENTAL OPPORTUNTITIES ...... 15 GLOSSARY ...... 23
Page 2 of 24 Environmental Appraisal/Action Plan Project: Structures Package 1b Date: Dec 2013 Version: Rev A
1 INTRODUCTION
1. Project Name: Crossrail Step Free Access 2. Address/Location: Langley Railway Station 3. Project Manager: 4. The project is currently at Stage 2
2 PURPOSE
The purpose of this document is to identify potential environmental issues and risks that may arise during the design and construction of the Crossrail Step Free Access project and to ensure that actions are undertaken to manage these aspects.
3 SCOPE AND PROJECT DESCRIPTION
Scope
This report presents a preferred option for providing a compliant step free access route to all usable platforms at Langley Station.
Description
The preferred solution is to construct a new footbridge to the east of the station building. The footbridge will have Network Rail standard 16 person lifts and stairs to all platforms. The existing footbridge will be retained.
4 ENVIRONMENTAL ISSUES FROM EARLIER GRIP STAGES
GRIP stage Status
1 N/A
Page 3 of 24 Environmental Appraisal/Action Plan Project: Structures Package 1b Date: Dec 2013 Version: Rev A
NOTE: IF CHECKED “YES”, BEST TO EVALUATE WHETHER THE PROJECT/SITE AND/OR ACTIVITIES CAN BE MOVED TO AVOID THE NEED TO ADDRESS THESE ENVIRONMENTAL RISKS/CONSTRAINTS. Information Environmental Considerations and Yes ? No Possible action Comments Sources Risks (but not limited to) 5 GENERAL RISKS
5.1 Project Does land or land rights (easements/way PPP • Seek advice from Town No Description, leaves/permanent – temporary site compounds, etc.) Planning/Property/ Town Planning/ need to be purchased? Environment/Community Infrastructure Relations Teams and consult Liabilities/ Note: even if works are within permitted development with external stakeholders/ Operational (PD) rights there may be restrictions as to what local authorities (LA) where Surveyor Teams, activities are allowed (e.g vegetation clearance during necessary MARLIN nesting season). • Site investigation/ surveys rd 5.2 Project Is the land leased out or are there 3 party interests P • Design aspects: include If required, the location of the Description, or onsite utilities, telecommunication, etc.)? in/modify design/relocate to welfare facilities may Town Planning/ avoid the need to address necessitate temporary use of Infrastructure these issues/ incorporate adjacent land off network rail Liabilities/ mitigation measures property e.g. within the car Operational • Develop a Consent/ park, run by APCOA Parking Surveyor Teams, Environment/Communication (UK) Limited. MARLIN, RAR, Strategy Plan(s) as required Utility Diagrams • Obtain consent (TWA Order/ 5.3 Town Planning Does the acquisition or lease of the land change the P planning permission/ area No Team status of the land land rights) if required 5.4 Project Is land that may need to be purchased/leased P • Specify protective measures No, there are a number of Description, contaminated or a licensed waste facility? in design/contract/construction historic landfills in the vicinity MARLIN, Town requirements of the station but not within the Planning Team works footprint. 5.5 Town Planning Does the project require Transport and Works Act PPP No Team (TWA) order/planning permission or similar?
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Information Environmental Considerations and Yes ? No Possible action Comments Sources Risks (but not limited to) 5 GENERAL RISKS
5.6 Town Planning/ Has the Local Planning Authority or any other PPP • Seek advice from Town Discuss with Crossrail Environment/ Statutory Body expressed concern over the project or Planning/Property/ Community similar projects? Environment/Community Relations Teams Relations Teams • Consult with external stakeholders/LA 5.7 Town Planning/ Have residents or any other interest group indicated PPP • Seek advice from Town Discuss with Crossrail Community concern over the project or similar projects? Planning/Property/ Relations/ Environment/Community Environment Note: even if the works are within PD rights and are Relations Teams Teams common activities, e.g. vegetation/tree clearance, this • Consult with external may still be sensitivity for stakeholders. stakeholders/LA 5.8 Town Planning Are there any local plans/development proposals of PPP • Seek advice from Town No Team/local land adjacent to/near the project that may have future Planning/Property/ authority ramifications on the project? Environment/Community Relations Teams 5.9 Project Are there new or unusual features associated with PPP • Consult internal Crossrail No Description the project that may become an issue with stakeholders internal/external stakeholders e.g. tall masts, • Design aspects: include incompatible features with existing Crossrail in/modify design/incorporate structures? mitigation measures 5.10 Guidance from Any relevant Crossrail policies (such as P • Consult internal Crossrail During construction, it will Asset steward/ TWA/planning process)/conditions that may require stakeholders need to be ensured that other Crossrail derogation (e.g. siting issues: substations next to • Design aspects: include Platform 2/3 can be accessed departments, telecommunication masts) or adjacent Crossrail in/modify design/incorporate throughout works. projects? mitigation measures Environmental Constraints 5.11 Project Does the local environment constrain the project e.g: • Consult internal Crossrail Description, Flood plain? P stakeholders No MARLIN, RAR, Flooding? P • Design aspects: include No
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Information Environmental Considerations and Yes ? No Possible action Comments Sources Risks (but not limited to) 5 GENERAL RISKS
site investigation Landslide? PPP in/modify design/incorporate No Difficult access (e.g. steep embankment)? P mitigation measures Only access to platform 2/3 is • Consult with/obtain consent if via station footbridge. Other (specify e.g. pests such as rabbits)? P required (e.g. building on a No flood plain/change to coastal defences)
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Information Environmental Implications and Risks Yes ? No Possible action Comments Sources (but not limited to) 6 AGRICULTURE /FORESTRY/VEGETATION MANAGEMENT
6.1 MARLIN, BAP, Does the project require taking good quality P • Site investigation No Site survey agricultural land, or affect any agriculture holding • Consult with external (e.g. severance)? stakeholders (particularly if 6.2 Does the project need to clear vegetation or trees P noticeable amounts of Yes, new footbridge option will on railway land or access routes? vegetation/trees/ habitat are require clearance of some 6.3 Does the project need to remove hedgerows? P affected) trees on platform 1 and 4. 6.4 MARLIN, BAP, Will the project need to remove, trim, cut trees P • Design aspects: include in/ No TPO’s. HERITAGE, under Tree Preservation Order (TPO) or in local modify design/incorporate Town Planning/ planning conservation areas? mitigation measures Environment • Obtain consent (LA Teams permission, etc.) if required • Specify protective measures 7 AIR QUALITY
7.1 Project Will there be significant project activity that could P • Modify design/ incorporate Langley Station is not within Description, generate large quantities of dust/noxious fumes or mitigation measures an AQMA. Breaking of MARLIN, Town change the local air quality? • Consult with local authorities concrete could increase Planning Team/ • Specify protective measures particulate matter. Good LA – practice guidelines should be (Environmental adhered to by the contractor to Health Officers) minimise impacts on air quality. 7.2 Are there adjacent/nearby receptors: residences, P The station is within a businesses, schools, medical facilities, etc.? business district. 7.3 Are there any local authority policy constraints (e.g. P No, there is no AQMA in the within/close to an Air Quality Management Area, vicinity. breaching of government air quality objectives or limit values)?
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Information Environmental Implications and Risks Yes ? No Possible action Comments Sources (but not limited to) 8 BUILDING, STRUCTURES, HISTORIC ASSOCIATION
8.1 MARLIN, RAR, Does the project affect a Listed Building, structure P • Seek advice from Town No. The station is not a listed HERITAGE, LA, and/or Scheduled Ancient Monument; e.g. from Planning building. There are no Town Planning piling, excavation, demolition, change of use, visual • Consult with LA/Heritage archaeological records from Team obstruction, potential for subsidence, cable Agencies the Heritage Gateway within attachments, bridge platforms? • Design aspects: include in/ 200m of the station. 8.2 Does the project affect a local planning P modify design/ incorporate No. Conservation Area, historic landscape features or mitigation measures similar designated area? • Obtain local authority/ 8.3 Does the project affect any other historical or man P heritage consent if required No. made feature likely to be of value? 9 CONTAMINATED LAND
9.1 MARLIN, RAR, Will the project disturb contaminated land? P • Site investigation No, there are a number of Contaminated • Seek advice from historic landfills in the vicinity land reports/ Environment Team of the station but not within the database, • Consult with LA if remediation works footprint. Railway Estates/ required Environment • Specify protective measures team 9.2 MARLIN, RAR Is the project site located adjacent to/near an P • Seek advice from Potential for railway ballast to Contaminated externally owned (e.g. landfill/industrial site) or Environment Team be contaminated with land reports/ Crossrail potentially contaminated site or sidings? • Seek alternative site chemicals/oil, but works will be database, site • Site investigation confined to platforms. Spoil survey, Railway • Specify protective measures, excavated from lift Estates/ including possible remediation foundations/ new footbridge Environment could be contaminated. Site team should be risk assessed and appropriate PPE worn.
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Information Environmental Implications and Risks Yes ? No Possible action Comments Sources (but not limited to) 9.3 Project Will the project activities open up pathways (e.g. P • Site investigation No. Description, channels) from contaminated areas to • Seek advice from MARLIN, RAR environment/stakeholder receptors; e.g. SSSIs Environment Team • Design aspects: include in/modify design/ incorporate mitigation measures • Specify protective measures 9.4 Project Are produced wastes/spent ballast likely to be P • Seek advice from No ballast will be spent. Waste Description contaminated? Environment Team produced from excavated • Site investigation/ sampling foundations for lifts could be • Follow RT/LS/P/044 for used contaminated. Site should be ballast and/or Special Waste risk assessed and appropriate requirements PPE worn.
10 ECOLOGY (protected species/areas and invasive species)
10.1 MARLIN, BAP, Is the project site/access/staging areas/ compounds P • Seek advice from No. RAR, on/adjacent/nearby a statutory nature conservation Environment Team HERITAGE, site (e.g. SSSI, RAMSAR, SPA/SAC/cSAC/pSPA • Site survey Town Planning/ site) or other ecological designations? • Consult with local Environment Will the activity (e.g. working in a culvert, drainage P Conservation Agencies/LA No. Teams, site works) and/or materials used have the potential to • Design aspects: include in/ survey, LA BAP indirectly affect the designation and/or a protected modify design/ incorporate local area (e.g. downstream SSSI water quality)?
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Information Environmental Implications and Risks Yes ? No Possible action Comments Sources (but not limited to) 10.2 conservation Are there any protected species and/or habitats e.g. P mitigation measures Vegetation clearance could organisations bats, badgers, newts etc. at or near the project site? • Obtain protected species impact breeding birds – clear license if required outside of breeding season • Specify protective and between September and measures/follow site February inclusive. management plan (SMS) if SSSI • Train staff • Continue monitoring if required 10.3 BAP, RAR, Site Are there any invasive vegetation species P • Site investigation No survey (Japanese knotweed, Giant hogweed, etc.) at or • Enabling works for removal near the project site? • Specify protective measures 11 LANDSCAPE/TOWNSCAPE/VISUAL
11.1 Project Is the site at/near or can be seen from a National P • Site investigation No Description, Park/World Heritage Site/Area of Outstanding • Consult with local Heritage/ Town Planning/ Natural Beauty (AONB)/local Conservation Agencies Environment landscape/coastal/townscape designation? • Design aspects: include in/ 11.2 Teams, LA/ Will the visual amenity of lineside residents be P modify design/incorporate New footbridge would require Heritage/ affected; e.g. removing vegetation, erecting mitigation measures (e.g. trees on platforms 1 and 4 to Conservation new/taller structures than existing surroundings, restoration plan) be removed. Offices back onto Agencies demolition in Conservation Areas? • Specify protective measures platform 1. 11.3 Will new structures/project components obstruct P No visual amenity of dwellings/recreational areas/cultural heritage/conservation areas? 11.4 Will grading and vegetation removal with P Yes – as above. subsequent landscaping be required?
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Information Environmental Implications and Risks Yes ? No Possible action Comments Sources (but not limited to) 12 NUISANCE: NOISE, VIBRATION AND LIGHT
12.1 Project Is noise/vibration likely to increase from existing P • Site noise investigation Works are likely to take 34 Description, levels at site during construction? • Consult w/local authorities weeks. Works will take place MARLIN (EHO) during normal working hours • Design aspects: include in/ (8am to 6pm) and during modify design/incorporate evening and night mitigation measures possessions. 12.2 Will it affect? • Neighbour letter drops/ Adjacent/nearby residences? P consultation Letter drop to businesses Adjacent/nearby businesses, worship, P • Obtain Section 61 consent if recommended. No hospitals, schools, hospitals, hotels etc.? required churches, residents or hotels Adjacent/nearby SPA/SAC, P • Specify protective measures in local area. nesting birds, seasonal constraints? • Train staff 12.3 Will the project occur at night/weekend or public P • Continue monitoring Yes holiday (use of lights/noise) 12.4 Project Is noise/vibration likely to increase from existing P • Site noise investigation High speed trains regularly Description/ levels at site during operation? • Seek advice from pass through Langley station, Noise Insulation Environment Team/Other and therefore the noise levels Regulations Crossrail departments at the station are intermittently • Design aspects: include in/ relatively high. However modify design/incorporate breaking of concrete and mitigation measures excavation of foundations will increase noise throughout working hours and evening and night possessions for 34 weeks.
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Information Environmental Implications and Risks Yes ? No Possible action Comments Sources (but not limited to) 13 TRAFFIC GENERATION AND ACCESS
13.1 Project Will significant traffic (vehicular/heavy loads) P • Consult local No Description particularly through villages and along farm/country authorities/highways dept. roads be generated (Public Rights of Way)? • Design aspects: include in/ 13.2 Will the scheme result in new vehicular traffic flows? P modify design No (Before and/or after) • Obtain Highways consent if 13.3 Will it cause new pedestrian movements? (Before P required No and/or after) • Specify protective measures 13.4 As above Any footpath, road closures/diversions required P • As above Closures to roads and during construction? footpaths are unlikely as car park and Network Rail yard can be used for storage. LA will need to be consulted. 13.5 Project Will parking outside railway land be required (e.g. P • Specify protective measures Yes, as above; in Network Rail Description on streets, on/near lineside neighbour’s land) • Train staff yard/car park. 13.6 Are access points near adjacent properties P Only one way to access the (nuisance including noise) station – down Station Road. There are local residents and businesses on this road. However closures to roads and footpaths are unlikely. 14 WATER RESOURCES, POLLUTION (including Silt) AND DRAINAGE
14.1 Project Is the project on/near/adjacent to a watercourse and P • Site investigation No. Description, drainage channels? • Consult with local 14.2 MARLIN, RAR, Will the works occur within 8-m of the bank and/or in P Environment Agency/DEFRA No. Surface water a designated main river for coastal/ marine/estuary 14.3 risk assessment Will the project need to remove vegetation close P areas No. model, Site to/on or in a riverbank? • Design aspects: include in/ 14.4 investigation Is it likely to affect the flow of watercourses? P modify/design to remove the No.
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Information Environmental Implications and Risks Yes ? No Possible action Comments Sources (but not limited to) 14.5 Will works occur around a water source protection P need for a consent Within a groundwater source area or require abstraction of water from a well? • Obtain work near protection zone and a high watercourses, obstruction to vulnerability zone of a major watercourse, discharge to aquifer. 14.6 Will works occur near marine waters, on coastal P controlled waters and/or No. areas below mean high tide or affecting navigation? sewerage system, etc. 14.7 Will it generate a discharge either directly to a P consents if required No. watercourse or to soak away/ground; e.g. • Specify protective measures dewatering operation/discharge from a bund? (e.g. Site Drainage Plan, 14.8 Will it generate a discharge to a foul sewer? P Emergency Incident Plan) No. • Continue monitoring 14.9 Project Will waste/spoil be stockpiled, P • Establish protective measures No. Description, materials/chemicals/fuels/oils stored at site that • Train staff MARLIN, RAR, could enter a watercourse, major aquifer Site investigation underneath or on a flood plain? 15 WASTE/SURPLUS MATERIAL
15.1 Project Will it generate large quantities of surplus material; P • Design aspects: include in/ Relatively small amounts of Description, i.e. spoil, sleepers? modify design: reuse, recover, spoil will be generated from NDS/ Town recycle excavations for lift foundations. Planning/ • Consult with and obtain Ensure correct waste disposal Environment consent from local procedures are adhered to. Teams authorities/Environmental Agencies for storage/ management concerns • Specify protective measures (e.g. Waste Management Strategy/Plan)
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Information Environmental Implications and Risks Yes ? No Possible action Comments Sources (but not limited to) 15.2 Project Can surplus material be reused (spares, spoil, P • Design aspects: include in/ No. Description, etc.)? modify design/incorporate NDS/ Town mitigation measures Planning/ • Ensure that the surplus Environment remains in the chain of utility Teams and is not seen as “getting rid of”; a waste exemption if applicable may also be required, seek advice from Environment Team 15.3 Will onsite disposal or land purchase be required? P • Seek advice from No. Planning/Environment Team • Consult with LA/Environment Agency • Design aspects: include in/ modify design/incorporate mitigation measures • Obtain waste management consent/exemption if required • Specify protective measures 15.4 Project Will it generate special wastes; e.g. oil, paint cans, P • Design aspects: include in/ Spoil may be contaminated. Description, contaminated land? modify design/incorporate Appropriate PPE should be NDS/ Town mitigation measures worn by site operatives. Planning/ • Obtain consent if Environment required/follow Special Waste Teams regulations • Specify protective measures Specify protective measures (e.g. Waste Management Strategy/Plan)
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Information Environmental Implications and Risks Yes ? No Possible action Comments Sources (but not limited to) 16 SUSTAINABILITY: ENVIRONMENTAL OPPORTUNTITIES
16.1 Project Can recycled/reclaimed materials such as P • Modify design/contract/ No. Description/ sleepers/ballast/spoil/cables be used instead of raw construction strategy to Environment materials? capitalise on opportunities 16.2 Team Can energy/water efficiency be gained through P Energy efficient lighting could building design/supply chain? be installed on the hand rails and to illuminate the steps etc. Where possible, prefabricated parts should be used to ensure the design is as energy efficient as possible. 16.3 Project Can work be performed in parallel with another P • Modify design/contract/ This can be discussed with Description/ project reducing wastage, duplication and construction strategy to Crossrail. Environment redundancy of materials, timing and resources? capitalise on opportunities 16.4 Team Can effluents and discharges be minimised? P Do not leave equipment running when idle etc. 16.5 Can potentially polluting materials be replaced with P No. less harmful materials (e.g. biodegradable oils)? 16.6 Are there other areas where environmental and P No sustainable benefits can be gained; such as Positive communication/interactive consultation with P Signs should be erected prior lineside neighbours/other stakeholders? and during works to inform the public of the works. Consult with LA prior to works commencing. Innovative environmental designs/methods of work? P No, this will be reviewed at the detailed design stage.
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Information Environmental Implications and Risks Yes ? No Possible action Comments Sources (but not limited to) Positive contribution to habitats/protected species? P Possible: Wildlife nest boxes could be installed at the station or on adjacent trees to support the local birds/bats/invertebrate populations.
New landscaping should use native species and avoid invasives such as Cotoneaster species. 16.7 Other (specify on action log)? P No. OTHER 17.1 Are there any other possible environmental effects P No. specific to this project? If so list them: e.g. electro- magnetic effects, settlement, local issues/policies
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ACTION PLAN Note: For each positive or ? response, the issue must be taken forward into the action plan for further management with the specific actions required, the responsible party for that action, start and target completion date identified. Evaluating the probability and the significance of the risk will assist to prioritise the issues and identify areas with unacceptable risk that will need to be eliminated, reduced and/or controlled. ISSUE PROBABILITY OF LEVEL OF RISK2 ACTIONS TO BE TAKEN3 RESPONSIBLE GRIP TARGET DATE OCCURRENCE 1 PARTY(IES) STAGE Low Medium High Low Medium High Does the project V V Do this outside of the breeding bird Crossrail Plan at GRIP need to clear season which runs approximately from 5, undertake at vegetation or trees March – September. GRIP 6. on railway land or access routes? Are there any V V Breeding birds - clear vegetation outside Crossrail Plan at GRIP protected species of the breeding bird season which runs 5, undertake at and/or habitats e.g. approximately from March – September. GRIP 6. bats, badgers, newts etc. at or near the project site?
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ISSUE PROBABILITY OF LEVEL OF RISK2 ACTIONS TO BE TAKEN3 RESPONSIBLE GRIP TARGET DATE OCCURRENCE 1 PARTY(IES) STAGE Low Medium High Low Medium High Disturbance from V V Ensure local businesses/residences are noise, vibration, informed. Use mufflers/silencers on Crossrail & GRIP 5 & 6 impact on air equipment where necessary and throttle Contractor quality down machinery when idle. Contact South Buckinghamshire Council as a matter of courtesy to inform them of the works. It is advisable to make the local council aware of these works well in advance to avoid delays/intervention/abatement action. Unlikely to require further permits/agreements for noise. Adhere to Crossrail’s Environmental Minimum Requirements and take actions for noise/vibration/dust suppression (such as those outlined in CIRIA guidance C692 and C715). Are there V V Adhere to Crossrail’s Environmental Design Team, GRIP 3 adjacent/nearby Minimum Requirements and take actions Crossrail and onwards receptors: for noise/vibration/dust suppression (such Contractor residences, as those outlined in CIRIA guidance C692 businesses, and C715). A letter drop to local schools, medical businesses and residents is facilities, etc.? recommended. Ensure that clear notices are provided to these 3rd parties and that they are informed of the works. Use best practice guidelines to minimise disturbance (noise/vibration/dust/lighting etc.)
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ISSUE PROBABILITY OF LEVEL OF RISK2 ACTIONS TO BE TAKEN3 RESPONSIBLE GRIP TARGET DATE OCCURRENCE 1 PARTY(IES) STAGE Low Medium High Low Medium High Will produced V V Ballast unlikely to be disturbed, but waste wastes/spent will be generated from lift excavations. Crossrail & Grip 5 & 6 ballast likely to be Reuse materials where possible (ensure Contractor contaminated? EA exemptions are held where necessary for storing waste on site). All waste should be removed from site by a licenced contractor under the appropriate EA permits. Will the visual V V Plan replacement landscaping. Inform Crossrail GRIP 4 amenity of lineside local residents of works residents be affected; e.g. removing vegetation Will grading and V V Plan replacement landscaping. Inform Crossrail GRIP 4 vegetation removal local residents of works with subsequent landscaping be required? Any footpath, road P P Closures to roads and footpaths are Crossrail Grip stage 4 closures/diversions unlikely as car park and Network Rail yard required during can be used for storage - consult with LA. construction? Are access points V V Yes – inform residents/businesses prior to Crossrail Grip stage 4&5 near adjacent works commencing. properties (nuisance including noise) Is there difficult P P Proposed lift location on Platforms 2/3 can Crossrail & Grip stage 4&5 access? only be accessed via the station contractor footbridge – discussion with Crossrail and contractor regarding access
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ISSUE PROBABILITY OF LEVEL OF RISK2 ACTIONS TO BE TAKEN3 RESPONSIBLE GRIP TARGET DATE OCCURRENCE 1 PARTY(IES) STAGE Low Medium High Low Medium High Can effluents and V V Do not leave engines idling/ machinery Contractor Grip stage 6 discharges be running when not in use. minimised? Positive V V Possible: Wildlife nest boxes could be Crossrail Grip stage 5 contribution to installed at the station or on adjacent trees habitats/protected to support the local birds/bats/invertebrate species? populations.
Landscape planting should use native species (avoiding invasives such as Cotoneaster species). Risk of polluting V V Adhere to Crossrail’s Environmental Contractor Grip stage 6 aquifer – within Minimum Requirements and take actions groundwater for protection of groundwater. protection zone Doubling up on V V Enquire with Crossrail if any works can be Design Team & Grip stage 4 materials/ time/ undertaken alongside other schemes at Crossrail resources the station to avoid inefficiency/doubling up of work Discuss innovative ways to reuse materials and where possible source sustainable materials for refurbishment. Ensure actions are energy efficient where possible e.g. the type of lighting installed or use prefabricated structures where possible. All works should aim to comply with Crossrail’s Sustainability Policy goals and sustainable materials target.
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Environmental Appraisal/Action Plan Project: Structures Package 1b Date: Dec 2013 Version: Rev A
5. Specify environmental protective measures within EMP to mitigate during construction
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GLOSSARY
Abbreviations AONB Area of Natural Beauty BAP Biodiversity Action Plan (plus accompanying guidance sheets/toolkits) CR-E RT/LS/S/015 Network Rail Contract Requirements, Environment cSAC Candidate Special Areas of Conservation EA Environmental Appraisal EHO Environmental Health Officer EMP Environment Management Plan GRIP Guide to Railway Investment Projects HERITAGE Network Rail-wide database of protected land and/or buildings LA Local Authority MARLIN Network Rail-wide property Geographical Information System NDS National Delivery Service PD Permitted Development PSPA Potential Special Protection Area RAMSAR Site Wetlands of International Importance Designation RAR Railtrack Asset Register SAC Special Areas of Conservation SMS Site Management Statement SPA Special Protection Area SSSI Site of Special Scientific Interest TPO Tree Preservation Order TWA Transport and Works Act
Statutory Agencies
Environment Environment Agency for England and Wales Agencies Scottish Environment Protection Agency (SEPA) Conservation Department of Environment, Food and Rural Affairs Agencies (DEFRA) Scottish Executive Environment and Rural Affairs Department (SEERAD) English Nature (EN) Countryside Council for Wales (CCW) Scottish Natural Heritage (SNH) Heritage Agencies English Heritage Welsh Heritage Agency (CADW) Historic Scotland
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Possible Consent Needed for Project Work Landtake Responsible Agency • TWA Order if require compulsory purchase of land Planning authority • Planning permission from local authorities (Town and Country Local Planning Authority Planning Act 1990). Prior Approval or Permitted Development Scheduled Ancient Monument/Listed Building/Conservation Area Consent to disturb a scheduled ancient monument (Ancient Secretary of State/Local Planning Monument and Archaeological Areas Act 1979) Authority • Listed Buildings/Conservation Area (Town and Country Planning Planning authority Act) Trees and Ecology • Work affecting Tree Preservation Orders, which offer legal Local Planning Authority protection to trees (Town and Country Planning (Trees) Regulations 1999) • Licence for felling timber (Forestry Act 1967) Local Planning Authority • Works affecting Important Hedgerows (Hedgerow Regulations Local Planning Authority 1997) • Licence for disturbance to badgers (Protection of Badgers Act 1992) DEFRA • Other wildlife consents required for works affecting protected EN/SNH/CCW; DEFRA species e.g. great crested newts, bats Noise and Vibration • Section 61 consent on nuisance (noise) during construction (under Local Authority – Environment the Control of Pollution Act 1974) Health Officer Traffic Generation and Access • Highways stopping/diversion consent (including temporary closures) Highways authority • Vehicle crossing consents (Highways Act 1980) Water Resources (quality and hydrology) • Consent for works over, under or adjacent to designated main Environment Agency/SEPA rivers (Land Drainage Act /Water Resources Act 1991) • Works affecting flow/structures in watercourse or navigation (Land Environment Agency/SEPA Drainage Act 1991) • Works around water source protection area (Water Resources Act Environment Agency/SEPA 1991) • Consent for works within 8m of a watercourse (Land Drainage Local Planning Authority bylaws) • Water abstraction license (Water Resources Act 1991) Environment Agency/SEPA • Consent for dewatering/discharge of water from excavations (Land Environment Agency/SEPA Drainage Act 1991) • Consent for discharge to controlled water and/or groundwater Environment Agency/SEPA (Water Resources Act 1991/Groundwater Regulations) • Water Authority Consent to discharge to foul sewer (Water Sewerage undertaker/ Industries Act 1991) Environment Agency/SEPA • Consent for works in coastal areas and marine waters (Coastal Marine Consents & Environment Protection Act 1949/Harbours Act 1964) Unit (DEFRA)/Local Harbour Authority Waste Management • Waste management licences under the Waste Management Environment Agency/SEPA Licensing Regulations 1994
Note Legislation refers to regulations in England and Wales; regulation in Scotland differs; however, similar permission/consents apply
Page 24 of 24 Ref: 317520/MMRA/WO023/0003 Version: 01 Date: 19/12/2013
Appendix I.2 Geotechnical Summary
Ref: 317520/MMRA/WO023/0003 Version: 01 Date: 19/12/2013
Existing Information
General This section is a review of all existing and relevant geotechnical information available on the project.
Geological maps 1:50,000 British Geological Survey (BGS) Geological Map Sheet 269 (Windsor), Solid and Drift edition, 1981. A review of the British Geological Society (BGS) Geology of Britain viewer (http://mapapps.bgs.ac.uk/geologyofbritain/home.html) has also been carried out to review the latest geological mapping available. The geological map shows the site to be underlain by clay and silt of the Langley Silt Member and the sands and gravels of the Taplow Gravel. These superficial deposits overlie London Clay, which in turn overlies the Reading Beds of the Lambeth Group.
Historical British Geological Survey (BGS) Boreholes A review of the British Geological Society (BGS) Online Boreholes Record Database (http://www.bgs.ac.uk/GeoIndex) has been carried out to enable a better understanding of ground conditions in the location of the site. A number of BGS boreholes are located within the Langley Business Park to the south of the railway have been reviewed and these records provide an indication of the underlying soils to be expected below the railway embankment. Two boreholes (BGS Borehole ID: TQ07NW303 & 304) carried out in 1989 approximately 120m south of the site, indicated Made Ground over Langley Silt to a depth of 1.35m. This overlies 6m of very dense gravel (Taplow Gravel) which in turn overlies the London Clay. Two boreholes were carried out along the southern boundary of the railway line in 1964 (BGS Borehole ID: TQ07NW418 & 419). The first of these shows sub soil and gravel (Taplow Gravel) to depth of 9ft (2.7m). Then 15ft (4.6m) gravel overlying 4ft (1.2m) of gravel and clay. London Clay was encountered at depth of 28ft (8.5m) below ground level. The second borehole shows 24ft (7.3m) of gravel (Taplow Gravel) overlying 4ft (1.2m) of gravel and clay. Again London Clay was encountered at depth of 28ft (8.5m). One further borehole included within the BGS records, although its exact location is unclear, indicates 1ft (0.3m) Made ground overlying 7ft (2.1m) of brown clay (Langley Silt) and 16ft (4.9m) of sand and gravel (Taplow Gravel). These superficial deposits overlie 30ft (9m) London Clay encountered to a depth of 54ft (16.5m), which in turn overlies the clay of the Reading Beds (Lambeth Group). The Lambeth Group was encountered to a depth of 130ft (40m) and overlies Chalk. BGS Borehole ID: TQ07NW305 was carried out 1988 and is located about 180m southeast of the site. The borehole shows 0.8m of Made Ground overlying 1.55m of soft to firm clay (Langley Silt). This is underlain by 5.15m of dense to very dense sand and gravel (Taplow Gravel) which overlies London Clay encountered to a depth of 15m where the borehole was terminated.
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There are also a number of boreholes and trial pits to the north east of the railway which were carried out in 2005 (BGS Borehole ID: TQ07NW901-921). A brief review of these indicates similar soils and consistent profile across the site. The boreholes closest to the site generally indicate about 1m of Made Ground overlying up to 2m of Langley Silt. This overlies approximately 6m of Taplow Gravels which in turn overlies the London Clay which is encountered at approximately 8-9m below ground level.
Previous Reports and Desk Study A number of reports have been previously produced as part of civil design works at the outer stations which are to be improved as part of the Crossrail project west of London, which includes Langley Station. Crossrail Outer West Surface Stations Geotechnical Desk Study (WSN1B-EGE-REP- ARB-61396311). (This report has not been made available for review but has been referenced in the following reports) Crossrail West – Outer West Surface Stations: Geotechnical and Geo-Environmental Investigation Report: Document Reference WSN1B-EGE-REP-AEA-000005 A05 Crossrail West – Outer West Surface Stations: GRIP 4 Geotechnical Design Report: Document Reference WSN1B-EGE-REP-AEA-000007 A01 The GIR report contains a detailed desk study which was based primarily on the ARUP desk studies which were undertaken to inform the design of the site investigation undertaken at the western stations. Reference should be made to this report for further details.
Geotechnical Site Investigations Completed A geotechnical investigation was carried out in July 2011. The investigation included 2 No. Window Samples with dynamic probing. WS902 was completed to 3m depth but WS901 had to be relocated twice due to obstructions in the first two inspection pits, and then very dense gravels in the third location resulted in a lengthy dig. Therefore WS901 could not be completed within the possession due to the obstructions encountered. However, very dense granular soils were proven at shallow depth in the three inspection pits for WS901, and the full embankment fill was penetrated in WS902, with further penetration into the natural clay below and with follow-on dynamic probing.
Ground Profile Based on the available ground investigation data from the holes completed during the GRIP Stage 4 ground investigation, the soils on site are expected to comprise of engineering / embankment fill over Langley Silt and Taplow Gravels over London Clay. During the 2011 GI embankment fill was encountered from the base of the Made Ground to at least the base of the embankment. This layer was very dense and difficult to dig through, particularly in WS901C. In WS902, the deposit was described as having an upper medium dense gravelly medium to coarse sand layer (SPT N of 20) to 1.5m, over a lower loose clayey sand layer (SPT N of 6) to 2.65m.
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The clay of the Langley Silt was not encountered until 2.65m below track level and therefore below the surrounding ground level. However, it is possible that the upper layers of this deposit were removed during construction and replaced with the loose sand recorded between 1.5m and 2.65m, placed to form the base of the embankment. Below the Langley Silt, Taplow Gravels are expected to be encountered based on the BGS borehole logs in the area. London Clay would then be expected to underlie the base of the Taplow Gravels at approximately 8m depth.
Groundwater Groundwater was not encountered during the ground investigations completed, although the sand was described as moist and becoming wet between 2m and 2.65m. Water levels were observed at 3.85m and 2.5m below ground level in the BGS boreholes TQ07NW303 and TQ07NW304. This is generally consistent with the other BGS borehole observations in the area.
Reported Characteristic Geotechnical Parameters The following characteristic soil parameters have been taken from the GRIP 4 GIR.
Stratum Depth Density, γB Angle of Effective Undrained shearing Cohesion, c’ Shear resistance, φ’ Strenth, cu [m bgl] [kN/m3] [°] [kPa] [kPa] Made Ground GL to 0.9 19 35 n/a n/a / Ballast (granular) Upper 0.9 to 1.5 19 33 n/a n/a Embankment (30-34) Fill (granular) Lower 1.5 to 2.65 19 29 n/a n/a Embankment (29-30)* Fill (granular) Firm to Stiff > 2.65 19 26 1-1.5 40 Clay (Langley (26-29)** (40-75) Silt) Below soils not encountered during investigation - interpolated from historic and project data Dense to 4.5 to 8.0 19 36 n/a n/a very dense River Terrace Deposits Stiff to very >8.0 20 24 1-5 90-150 stiff London Clay
Source: WSN1B-EGE-REP-AEA-000005 A05
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Notes: φ’ values have been derived from SPT N value in granular soils (Peck, Hansen and Thornburn, 1953). ** Values adopted with reference to the recorded plasticity values, soil descriptions, data from other stations on the route and past experience. Total and effective stress parameters in the Langley Silt have been based on available GI survey data for other sites, and with reference to CIRIA SP200, Stroud and Butler and past project experience.
γB values have been adopted with reference to Table 1 in BS8002:1994- Code of Practice for Earth Retaining Structures, and with reference to available GI survey data for other sites.
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Appendix I.3 Electrical Summary
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Description of Services The main DNO supply and metering cubicle is located adjacent to the car park. The existing incoming DNO supply is not capable of accommodating the new lift installations and will require upgrading. An increased capacity DNO electricity supply and metering position will need to be established along with a new 6 Way TP&N MCCB board. The main electrical distribution switchgear is housed in a wall mounted cupboard located at the rear of the ticket office. The main switchgear has an incoming supply rated at 100A TP&N from the DNO cubicle and 5 No outgoing fuse switches each serving distribution boards. The existing electrical distribution switch gear and associated distribution boards, with the exception of platform lighting DB-C (within platform 4 feeder pillar), will be unaffected by the works. The existing platform lighting and associated circuitry will need to be modified to accommodate the new lift and footbridge installations. The new 6 way MCCB panel board will provide new electrical supplies to the proposed lift and footbridge installation and re-supply the existing distribution switch gear in the ticket office. Each new lift machine room will be provided with a new 3 phase 63A electrical supply for the lift and a 63A single phase supply for the lift machine room general services distribution board. These will be fed from the new 6 way MCCB board.
Schedule of Works
Upgrade of existing incoming electrical supply and provision of new DNO cabinet Reconfigure existing lighting all Platforms to suit new layout Provide new 6Way TPN MCCB panel for Lift services Provide new sub main supply to existing ticket office switch gear Provide 3No New 3 phase electrical supplies – for each new lift from new MCCB panel. 3No new single phase supplies for new Lift Machine Room Distribution Boards from new MCCB panel.
The works proposed have been specified with consideration of interface with Grip 4 report works.
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Appendix I.4 Telecommunications
TELECOMMUNICATIONS GRIP 3 OPTION DESIGN Project Title Crossrail West Stations, DDA – Langley Station Project Number 116952 CR-T Reference Number Location Langley Station ELR MLN1 Mileage 16M 18Ch (From Paddington Station) OS Grid Reference Structure Number N/A
Introduction
The following describes the telecommunications works envisaged to implement DDA compliant access at Langley Station.
This work shall compliment the Crossrail GRIP 4 designs to be done by others and which were not available at the time of this report. This report only provides for the telecoms required for the DDA works proposed and may require to be revisited to integrate with the Crossrail designs when available. This document assumes that the existing systems at Langley are broadly the same as at other stations (Iver, Taplow, and Hanwell) visited and have been upgraded to the same standard.
Langley Station is located approximately 16M 18Ch from Paddington Station, between Iver Station and Slough Station. There are 4 platforms with Platforms 2 and 3 being an island platform.
A visual, non-intrusive survey of the station was carried out by Mott MacDonald staff on the 4th December 2013. The survey set out to capture the location of the station communications assets and the effect of the proposed DDA lift and access arrangements on the existing Crossrail GRIP 4 telecommunications design.
Existing Telecommunications Assets
The following system descriptions assume that the telecoms systems at Langley are broadly the same as at Iver, Taplow and Hanwell.
CCTV
The existing CCTV system comprises:
Control equipment located in an environmental communications cabinet located off Platform 4 near the footbridge and adjacent to the station building.. It was not possible to gain access to this cabinet at the time of the survey. Distributed local CCTV LV PSU’s providing LV power to the cameras Analogue cameras distributed throughout the station: 2 No. in the Ticket Office; 1 No. located on the station building monitoring the car park; 2 No under Platform 4 Canopy; 5 No. located along the length of platform 4, 2 No. located on Platform 2/3; 2 no. located on Platform 1.
14 No. CCTV cameras are connected into a standalone DVR system. which is connected to an Application Management Server (AMS) located at Swindon. A CCTV workstation is connected to the AMS. Camera images are recorded to the Nice Vision Pro DVR and associated RAID array which has the capacity to record up to 48 cameras at 4CIF/12.5FPS. Remote viewing access is provide over a BT Kilostream link which enables selection of remote cameras for live viewing at the Great Western Control Room, Swindon.
PA
The existing PA system comprises:
Control equipment (pre-amp, power amp, mixers, AFIL amplifiers and PA router) located in an environmental Comms cabinet on Platform 4. It was not possible to gain access to this cabinet at the time of the survey. Microphone unit located in the Ticket office Speakers are distributed on the platforms (2 No. Platform 4; 2 No. Platform 2/3 and 2 No Platform 1) and Ticket Office (2 No.) The existing footbridge are not equipped with PA Induction loops are installed as part of the PHP’s on each platform. The system does not utilise ANSs.
The existing PA utilises a single paging microphone located in the Ticket Office to make local announcements. There is no remote connection to the PA itself but there is remote access to the CIS system which is connected to the PA system and which allows remote initiation of long line live announcements. There are 2 audio channel connections from the CIS into the PA allowing two simultaneous CIS announcements. ANS are not implemented at this station.
CIS
The existing CIS system comprises:
CIS Control equipment co-located in the same cabinet as the PA system located in an environmental Comms cabinet on Platform 4. It was not possible to gain access to this cabinet at the time of the survey. 2 No. NTIs are located on the Platforms 4; 2 No. NTIs are located on the Platforms 3/4; 2 No. NTIs are located on the Platform 1; a single sided SOD display is installed in the Ticket Hall and one SSOD is located in the Ticket Office. All displays are LED. The FGW WAN/LAN rack is located in the Ticket Office
The CIS is connected to the FGW route control centre at Swindon via the FGW WAN. This connection provides the required train movement information to the CIS and also allows remote initiation of long line PA announcements.
PHP
The existing PHP provision is as follows:
Solar powered, GSM-based PHPs are installed on Platform 2/3. Mains powered GSM-based PHP on Platform 4, near the entrance to the ticket hall. All PHP’s connect directly to the GSM network and therefore there is no central equipment on the station. CMS and Cable Routes
Communications field equipment cabling run as follows:
CCTV Equipment Cabinet: CCTV cables are routed from the Comms Equipment Cabinet located at Platform 4 near the footbridge entrance via ducts and cable tray to the CCTV cameras at the station building and platforms.
Footbridge: The footbridge provides the cross track cable route for SISS equipment. Platform ducts at the base of each footbridge support connect into vertical cable tray risers and then across on the underside of the footbridge span.
Platform 1, 2/3 and 4: Cable ducts are provided in the platform to connect CIS displays and CCTV cameras to their respective control equipment.
Through Station Cable Routes: Unknown at this stage
DOO
3 No. existing DOO cameras are provided on Platform 4 as well as 2 sets of monitors (3 monitors at the 5/6 car stop; 2 monitors at the 2/3/4 car stop) The Thames Valley DOO Renewal project will replace the existing DOO cameras and will add a further 2 No. DOO cameras under the canopy. The monitor stacks and train mass detector will also be replaced under these works.
Proposed Crossrail GRIP4 Works
This is unknown at the time of writing this report
DDA and Associated Works
The following describes the additional requirements for inclusion into the SISS design to incorporate the addition of the DDA works.
The DDA works will include the provision of a new footbridge structure with stairs and through lifts proving access to/from Platforms 1, 2/3 and 4. The new footbridge will be located to the east of the existing station buildings.
General
The numbers and location of new cameras is an estimate and will be subject to a full design review of the station camera view coverage and its compliance with NR standards and approval of all stakeholders including the BTP, NR, the TOC and Crossrail.
Subject to the number of cameras installed, the designer will need to confirm the video recording capacity, network data capacity, power supply and UPS requirements and scale the control equipment and data links appropriately. It is noted that the Crossrail CCTV design does not include provision for a 1 hour back up UPS. This design is not compliant with current NR standards and it is proposed that the UPS is included in the DDA provision. This will also impact on the CCTV LV power distribution and cabling and should be developed as part of the final GRIP 4 reference design and implemented as part of the GRIP 5 detailed design.
The Crossrail works will remodel the platform level and length and will reconfigure the through platform duct routes. Consideration shall be given to the DDA construction works and the potential of interference with the Crossrail and existing platform through routes.
Platform 4
It is proposed to install a new footbridge with stairs and lift shaft dropping down from the new footbridge to platform level. Additional telecoms requirements to enable this provision will be:
2 No. lift car cameras 2/3 No. cameras with view at footbridge level to provide coverage of the lift door, route to lift along footbridge and top of stairs. Additional camera at platform level to view the lift entry. Additional camera at platform level to view foot of new footbridge stairs 1 No. PW PSTN for the lift intercom alarm units. Provision in the Lift Motor Room (LMR) for camera and Intercom interface points. Cable route and design of structured cabling between field equipment and station control equipment in CCTV cabinet. In line with the existing GRIP 4 design, the cameras will require connection to the LV camera supply provided by LV PSUs. This may require additional provision of fused spurs provided by the electrical designer in the vicinity of the camera equipment and then distributed to the camera locations. Provision for PA within the new footbridge (2 speakers in total) DOO Cameras located on Platform 4 will require checking as to whether the new footbridge structure will obstruct their view. It is likely that the DOO cameras will require resiting.
Platform 2/3
It is proposed to install a new footbridge with stairs and lift shaft dropping down from the new footbridge to platform level. Additional telecoms requirements to enable this provision will be:
2 No. lift car cameras 2/3 No. cameras with view at footbridge level to provide coverage of the lift door, route to lift along footbridge and top of stairs. Additional camera at platform level to view the lift entry. Additional camera at platform level to view foot of new footbridge stairs 1 No. PW PSTN for the lift intercom alarm units. Provision in the Lift Motor Room (LMR) for camera and Intercom interface points. Cable route and design of structured cabling between field equipment and station control equipment in CCTV cabinet. In line with the existing GRIP 4 design, the cameras will require connection to the LV camera supply provided by LV PSUs. This may require additional provision of fused spurs provided by the electrical designer in the vicinity of the camera equipment and then distributed to the camera locations. Platform 1
It is proposed to install a new footbridge with stairs and lift shaft dropping down from the new footbridge to platform level. Additional telecoms requirements to enable this provision will be:
2 No. lift car cameras 2/3 No. cameras with view at footbridge level to provide coverage of the lift door, route to lift along footbridge and top of stairs. Additional camera at platform level to view the lift entry. Additional camera at platform level to view foot of new footbridge stairs 1 No. PW PSTN for the lift intercom alarm units. Provision in the Lift Motor Room (LMR) for camera and Intercom interface points. Cable route and design of structured cabling between field equipment and station control equipment in CCTV cabinet. In line with the existing GRIP 4 design, the cameras will require connection to the LV camera supply provided by LV PSUs. This may require additional provision of fused spurs provided by the electrical designer in the vicinity of the camera equipment and then distributed to the camera locations.
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Appendix I.5 Lifts
Butler & Young Lift Consultants Ltd. Mott McDonald Ltd.
APPENDIX Ref. A
OUTLINE LIFT DESIGN FOR THE CROSSRAIL STEP-FREE ACCESS PROJECT
PROVISION OF INDEPENDENT PLATFORM ACCESS
THE INSTALLATION OF 3 NETWORK RAIL PASSENGER/GOODS LIFTS WITHIN PREPARED ENVIRONS
AT
LANGLEY STATION BERKSHIRE. SL3 6DB.
Prepared by; For;
Butler & Young Lift Consultants Limited. Mott MacDonald Ltd Timber Hall, 8-10 Sydenham Road 21 Timber Lane, Croydon Caterham, Surrey Surrey, CR0 2EE CR3 6LZ.
Tel. 01883 346448 Fax. 01883 344988 Email:
December 2013
L3508 Issue 01 Langley Station: CrossRail Step-Free Access Project Installation of 3 Network Rail lifts Butler & Young Lift Consultants Ltd. Mott MacDonald Ltd.
OUTLINE LIFT DESIGN LANGLEY STATION CROSSRAIL STEP FREE ACCESS PROJECT
DOCUMENT AMENDMENT HISTORY
Issue Date Parts Purpose Prep. Chk. Issued By By
Draft 01 06/12/13 All To: Of: Mott MacDonald For: Review/comment
Issue 01 16/12/13 All To: All For: Report Issue
L3508 Issue 01 Langley Station: CrossRail Step-Free Access Project Installation of 3 Network Rail lifts Butler & Young Lift Consultants Ltd. Mott MacDonald Ltd.
INDEX
SECTION 1.00 INTRODUCTION & BACKGROUND
SECTION 2.00 OUTLINE LIFT DESIGN CONSIDERATIONS
SECTION 3.00 OUTLINE LIFT DESIGN
SECTION 4.00 NR/SP/ELP/27228 SCHEDULE 1
SECTION 5.00 REFERENCE INFORMATION
L3508 Issue 01 Langley Station: CrossRail Step-Free Access Project Installation of 3 Network Rail lifts Butler & Young Lift Consultants Ltd. Mott MacDonald Ltd.
SECTION 1.00
INTRODUCTION & BACKGROUND
L3508 1 Issue 01 Langley Station: CrossRail Step-Free Access Project Installation of 3 Network Rail lifts Butler & Young Lift Consultants Ltd. Mott MacDonald Ltd.
1.00 INTRODUCTION & BACKGROUND
1.01 This document has been prepared by;
Butler & Young Lift Consultants Ltd. Timber Hall, 21 Timber Lane, Caterham, Surrey. CR3 6LZ. 01883 346 448
Link Up No. 18926
1.02 And, prepared on behalf and in consultation with;
Mott MacDonald Ltd 8-10 Sydenham Road, Croydon, Surrey. CR0 2EE.
This document has been prepared in particular consideration to the installation of three Network Rail general purpose passenger/goods lifts within new environs prepared by others to best fit the existing design and fabric of Langley Station in order to provide step free access at the station.
1.03 The lifts are designated to serve; Platform 1 Platforms 2/3 Platform 4
1.04 They are to be of the same size, design and construction and operate independently of each other.
1.05 The design of the lift environs is determined by civil engineering considerations following detailed investigations of the station.
1.06 This document should therefore be read in conjunction with outlining associated works as this document relates specifically to the lift design.
1.07 The lifts proposed are principally compliant with Network Rail requirements, namely;
NR Specification NR/SP/ELP/27228 Department for Transport Code of Practice for Station Design for Disabled People Version 3 November 2011
However, the requirements of NR/SP/ELP/27228 shall prevail where there is differences between these standards.
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SECTION 2.00
OUTLINE LIFT DESIGN CONSIDERATIONS
L3508 3 Issue 01 Langley Station: CrossRail Step-Free Access Project Installation of 3 Network Rail lifts Butler & Young Lift Consultants Ltd. Mott MacDonald Ltd.
2.00 OUTLINE LIFT DESIGN CONSIDERATIONS
2.01 Lift Design Rationale
The lift design is based on Network Rail minimum standards providing best practicable accessibility within a space efficient footprint.
The resultant lift design providing a 16 person 1200Kg capacity with a 1600mm square lift car with opposing doors offering ‘through’ access.
The lift car entrances will therefore be centralised within the lift car offering a 2 panel centre opening door arrangement with an 1100mm wide clear opening.
The lift entrance and lift car height will be 2100mm and 2300mm respectively.
A hydraulic type of lift drive system is selected on it merits, considering the requirement for a machine room as stated in Section 5 of NR/SP/ELP/27228.
The above allows for a twin, direct acting ram drive arrangement to be utilised thus negating the need for ropes, safety gears and overspeed governors and minimising onward maintenance liabilities.
Additionally, by driving the lift on its centre of gravity, lateral loadings acting on the building structure are also reduced to a practical minimum and therefore the design of the lift shaft can therefore be more efficient to suit.
2.02 Installation Methodology
It is assumed that the lift installation will be by traditional methods, i.e. the delivery of component parts to site and the assembly of lift equipment within the lift shaft and machine room.
This being the norm, requiring broadly the same logistical considerations as that to be employed elsewhere on the station for other aspects of the step-free access works.
Fixing points shall be incorporated within the lift shaft construction to minimise the requirement for drilling or other noisy works.
2.03 Intent of the Works
These works are part of a continuing and ongoing programme of works to provide a robust, serviceable and valued asset for the Network Rail Lift Portfolio.
The lifts shall be incorporated onto the Network Rail National Lift Maintenance Portfolio upon completion.
The lifts shall comprise of equipment of standard and generic origin, proven fit for purpose and readily available to the lift industry as a whole, thus ensuring freedom of the maintenance market and a minimum 25 year life span for all equipment.
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The lifts shall incorporate energy saving variable frequency drive and energy efficient equipment throughout. The lift car and entrances and associated equipment, together with operating, communication and indication fixtures shall be of a durable and vandal resistant design.
2.04 Compliance with the Lift Regulations
The lifts shall be designed, constructed and installed and placed into public service endorsed with the Lift Contractor’s CE Mark, as that required by their accredited ISO 9000 working procedures and The Lift Regulation 1997.
2.05 Related Documentation and References
The equipment and installation shall conform to all relevant European and British Standards, Codes of Practice and all other associated legislation.
In particular the lifts shall comply with;
The Lift Regulations1997 and the suite of standards covered under EN81, BS5655, BS7255,
Network Rail Company Specification NR/SP/ELP/27228,
And in addition, the relevant sections of;
- The Lift Regulations 1997 - Health and Safety at Work Act 1974 (HSWA) - Management of Health and Safety at Work Regulations 1999 (MHSWR) - Workplace (Health, Safety & Welfare) Regulations 1992 (WPR) - Provision & Use of Work Equipment Regulations 1998 (PUWER) - Lifting Operations & Lifting Equipment Regulations 1998 (LOLER) - Reporting of Injuries, Diseases & Dangerous Occurences Regulations 1995 (RIDDOR) - Construction (Health, Safety and Welfare) Regulations 1996 - Personal Protective Equipment Regulations 1992 - Control of Substances Hazardous to Health Regulations 1999 (COSHH) - Factories Acts. - Control of Asbestos at Work Regulations 2002 (CAWR) - Electricity at Work Regulations 1989. - Offices Shops and Railway Premises Acts. - Control of Pollution Act 1974. - Environmental Protection Act 1990. - Environmental Act 1995. - Water Resources Act 1991. - Wildlife Countryside Act 1981. - The Building Regulations. - The Supply of Machinery (Safety) Regulations 1992. - Transport and Works Act 1992. - The requirements of the local Highways Authority. - The requirements of the Department of Trade and Industry. - The requirements of the Department of Transport, Local Government and the Regions. - The requirements of the Environmental Agency. L3508 5 Issue 01 Langley Station: CrossRail Step-Free Access Project Installation of 3 Network Rail lifts Butler & Young Lift Consultants Ltd. Mott MacDonald Ltd.
- The requirements of British Transport Police or the local Police Authority. - The requirements of the Local Fire Authority. - Station Fire Safety Plan - Fire Precautions Act 1971. - Fire Precautions (Sub-surface Railway Stations) Regulations 1989 - Fire Precautions (Workplace) Regulations 1997 - The requirements of the Regional Electricity Company - The Building Industry National Codes of Practice for Passenger Lifts - CDM Regulations 2007, Managing Construction for Health and Safety. - The Electric Equipment (Safety) Regulations 1994. - Department for Transport Code of Practice for Station Design for Disabled People Version 3 November 2011 CIBSE - Guide D, Transportation Systems in Buildings. BS 476 - Fire tests on building materials and structures. BS 778 - Steel pipe joints. BS 2633 - Arc welding of ferritic steel. BS 2655 - Lifts, Escalators, Passenger Conveyors and Paternosters. BS 3810 - Glossary of terms used in materials handling. BS 3939 - Graphical Symbols for electrical power, telecommunications and electronic diagrams. BS 4568 - Metric steel conduit. BS 4678 - Cable trunking. BS 5244 - Life expiry of rubber hose. BS 5266 - Emergency lighting systems. BS 5420 - Degree of protection of enclosures for LV switch gear. BS 5514 - Overload requirements. BS 5536 - Preparation of technical drawings for micro filming. BS 5588 - Fire Precautions in the design, construction/use of buildings. BS 5655 - Lifts and Service Lifts. BS 5674 - Thermosetting Armoured Cables. BS 5750 - Quality Management Systems. BS 6207 - MICC cables. BS 6231 - PVC insulted cables. BS 6977 - Insulation for lifts and for other flexible connection. BS 7211 - Thermosetting Cables for Electrical Supplies. BS 7255 - Safe Working on Lifts. BS 7671 - IEE Requirements for Electrical Installations. BS 8300 - Design of buildings and their approaches to meet the needs of disabled people. BS 8486 - Specification for examination and test of new lifts before putting into service. BS 8888 - Drawing practice. BS EN 81 - Lifts and Service Lifts. BS EN ISO 13857 - Safety of Machinery – Safety Distances to prevent danger zones being reached by upper limbs. BS ISO 9000/3 - Quality Assurance EN 1050 - Safety of Machinery Risk Assessment. BS EN 60947-1 - Specification for Low Voltage Switchgear and Control gear. PM26 - Safe Working at Landings. LPS 1207 - Loss Prevention Standard. BS EN 627 - Specification for data logging and monitoring of lifts, escalators and passenger conveyors. BS EN 12015 - Electromagnetic compatibility: Product family standard for lifts, escalators and passenger conveyors – Emission
L3508 6 Issue 01 Langley Station: CrossRail Step-Free Access Project Installation of 3 Network Rail lifts Butler & Young Lift Consultants Ltd. Mott MacDonald Ltd.
BS EN 12016 - Electromagnetic compatibility: Product family standard for lifts, escalators and passenger conveyors – Immunity BS EN 12158 - Building hoists for the transport of goods. BS EN 12159 - Building hoists for persons and goods. BS EN 12182 - Technical aids for disabled persons – general requirements and test methods. BS EN 13015 - Maintenance for lifts and escalators. BS EN 50214 - Flexible cables for lifts. RT/E/S/40006 - Network Rail Company Standard: Core Maintenance Specification for Lifts NR/SP/ELP/ - Network Rail Company Specification – The Installation and 27228 Upgrading of Lifts
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SECTION 3.00
OUTLINE LIFT DESIGN
L3508 8 Issue 01 Langley Station: CrossRail Step-Free Access Project Installation of 3 Network Rail lifts Butler & Young Lift Consultants Ltd. Mott MacDonald Ltd.
3.01 Lift Performance Requirements
The lifts are required to function under the following conditions without prejudicing the overall performance:
a) A controlled machine room environment of between +5ºC & +35ºC. b) A general operating environment otherwise of between +5ºC & +40ºC. c) Dust or dirt laden atmosphere or subject to the effects of moisture. d) Electrically unstable supply and atmosphere. e) Close proximity to overhead AC or third rail DC train traction current. f) Mechanical vibration and train movements. g) Heavy and aggressive use by lift users.
3.02 Lift Use and Facilities
The design function of the lifts is primarily that for independent passenger use by the general public but also for occasional goods movements by activation of a car preference keyswitch.
The lifts shall also provide independent and dignified access that does not discriminate use by the infirm, those heavily laden or caring for infants/small children or to those with physical, sensory or mental impairment.
The lifts shall be vandal resistant in design and construction, and built for intensive passenger traffic, including use by luggage trolleys, wheelchairs, pushchairs and goods.
The lifts shall also to be of a practical design, to be used without difficulty, and utilise heavy duty, durable and fire resistant materials that can also be easily cleaned and/or maintained.
Automatic power operated horizontally sliding doors shall be provided, with the provision of electronic infra-red safety edge detectors to prevent the doors from closing if obstructed.
Glazed vision panels shall be provided in each set of doors.
The lift entrance sizes and arrangement shall offer practical access to the lift, whilst providing a robust, imperforate and fire resistant barrier when closed.
It is understood that the lifts do not formally form part of the Station’s Fire/Evacuation strategy and therefore is not to be connected to a fire alarm system. However, an emergency recall keyswitch shall be incorporated within the most convenient level landing station to manually take control of a lift and render it safe from use as required.
The lifts should not be used in the event of a fire. Notices on each lift landing push station shall carry this reminder.
L3508 9 Issue 01 Langley Station: CrossRail Step-Free Access Project Installation of 3 Network Rail lifts Butler & Young Lift Consultants Ltd. Mott MacDonald Ltd.
Each lift installation shall also provide the following facilities in particular with reference to meeting the needs for disabled access;
A large lift car capacity that allows good access for wheelchairs, buggies and passengers,
Automatic lift control,
Accurate floor levelling (+/-5mm),
Automatic horizontal sliding doors with electronic, full height infra-red door detector curtains to prevent doors closing onto passengers,
Glazed vision panels within each door to provide visual connection internally and externally.
Colour contrasted lift design, to assist those with visual impairment,
Slip resistant, matt finish and colour contrasting lift car flooring,
A maximum 25mm running clearance between the lift car sill and corresponding landing sills at entrance openings, and a maximum 13mm sill groove profile width, to minimise potential entrapment of wheels or long canes used by the blind,
Matt finished lift car walls,
Colour contrasted, polyester powder coated tubular handrail within the lift car,
Colour contrasted control stations with embossed, tactile information, lift identification, etc.,
Control stations that include large, colour contrasted, embossed and tactile Braille charactered push buttons with background illumination, positioned at disabled access heights and locations,
Push buttons that visually and audibly acknowledge operation,
Additional low level alarm station within the lift car,
Digital position indicators with scrolling messages in the car and at all floors,
Voice synthesiser for floor designation, door operations, direction of travel etc. in a ‘BBC English’ male voice in the car and at all floors,
Hands free emergency intercom facilities, with induction loop in the lift car,
Remote lift monitoring (lift operation and historical statistical data),
Facility to isolate the lift,
Facility to seize the lift under authorised control to facilitate station evacuation procedures,
Facility for Closed Circuit Television Camera Monitoring.
L3508 10 Issue 01 Langley Station: CrossRail Step-Free Access Project Installation of 3 Network Rail lifts Butler & Young Lift Consultants Ltd. Mott MacDonald Ltd.
3.03 Details of the new lift installations
The following summarises the general requirement for each new lift installation.
Type : Hydraulic Passenger/Goods Lift
Duty Rating : Heavy duty public use, including luggage, wheelchairs, pushchairs and goods. Vandal resistant construction, High intensity of use,
Rated Capacity : 16 persons 1200 Kg
Contract Speed : 0.63 m/s
Drive Arrangement : VVVF Energy Efficient Hydraulic Accumulator with twin direct side acting rams.
Machine Room Max. 10m remote from lift shaft under stairs at Platform level
Levels & Entrances Served : Front F - - - - - Rear - P - - - - F = (Footbridge) Upper level P = (Platform) Lower level
Lift Shaft Plan Size : 2400mm wide x 2400mm deep (internal clear minimum plumb)
Travel : Circa 5.5m
Headroom : 4000mm (top FFL to underside lifting beam)
Pit Depth : 1400mm
Lift Shaft Construction : TBC
Machine Room Construction : TBC
Lift Control Type : Full Collective Microprocessor with Remote Monitoring
Remote Monitoring : EMU outstation reporting to the Network Rail master unit within the Lift & Escalator Department, Waterloo Station, London. SE1 8SW.
L3508 11 Issue 01 Langley Station: CrossRail Step-Free Access Project Installation of 3 Network Rail lifts Butler & Young Lift Consultants Ltd. Mott MacDonald Ltd.
Lift Car (internal finished) : 1600mm wide x 1600mm deep x 2300mm high
Designed to suit the transportation of passengers and luggage, to be of robust design rigidised stainless steel panels, incorporating bumprails, handrails, powder coated white ceiling panels with recessed lighting and heavy duty non slip flooring.
Entrance Size : 1100mm wide x 2100mm high
Car doors and operator Through entry car. Fully automatic, VF door operators driving 2 panel centre opening horizontal sliding doors with min. 100mm w x 600mm high vision panels.
Landing Entrances : 2 hour fire rated entrances incorporating patterned stainless steel colour contrasted ‘stonehenge’ design architraves, complete with doors corresponding with the car doors.
Sills : Phosphor bronze or 316 grade stainless steel extruded sections.
Car Stations : New Gardinia coloured powder coated stainless steel operating panels located on both side walls of the lift car located to suit disabled access requirements.
Car operating stations to incorporate full range of operating fixtures including; scrolling position indicator, tactile embossed and Braille identified alarm and floor pushes with audible and visual acknowledgement, handsfree communication unit with induction loop.
Landing Push Stations : New Gardinia coloured powder coated stainless steel faceplates with cover flap, including; tactile embossed and Braille identified call registration pushes with audible and visual acknowledgement, scrolling position indicator, intercoms, voice synthesiser, and intercom unit.
Additionally, key landing station to incorporate an emergency recall keyswitch.
L3508 12 Issue 01 Langley Station: CrossRail Step-Free Access Project Installation of 3 Network Rail lifts Butler & Young Lift Consultants Ltd. Mott MacDonald Ltd.
SECTION 4.00
NR/SP/ELP/27228 SCHEDULE 1
L3508 13 Issue 01 Langley Station: CrossRail Step-Free Access Project Installation of 3 Network Rail lifts Ref: NR/SP/ELP/27228 Issue: 1 Date: October 2005
SCHEDULE 1: Requirements for a Particular Installation
ITEM REQUIREMENT √ / X
1. Project Identification and Langley Station Location (Station) CrossRail Step-Free Access Project 3 lifts (same size/design) serving; Platform 1 Platforms 2/3 Platform 4
2. Type(s) of Lift(s) New Lift/Modernisation*
Passenger* Passenger/Goods Goods only
Electric Traction* Top Drive Machine Room Above.* Bottom Drive Machine Room Below.* Bottom Drive Machine Room Below with Underslung Car.*
Other …………….……………….
Hydraulic Direct Acting with Bore Hole.* Direct Acting with side Rams.* Roped hydraulic with the Rams to the side or rear.* Pulling cylinder hydraulic.* Energy accumulation facility.* Other - Observation / Glass Lift*
Vandal Resistant Measures Yes/No* Required
Unmanned Installation Yes/No*
* Delete as necessary
Page 53 of 72 Ref: NR/SP/ELP/27228 Issue: 1 Date: October 2005
SCHEDULE 1: Requirements for a Particular Installation
ITEM REQUIREMENT √ / X
3. Rated Load 16 persons 1200 kg Rated Speed 0.63 m/s Travel Circa 5.5m (TBC) Lift Well Dimensions (internal) 2400mm minimum plumb width 2400mm minimum plumb depth Pit Depth 1400mm Headroom 4000mm No. and designation of levels 2 served Through entry lift car Car dimensions 1600 mm width 1600 mm depth 2300 mm height Accessible area below pit Yes/No
4. Power System
Electric Traction Single speed geared.* Two speed geared.* Variable frequency geared.* D. C. gearless.* Variable frequency gearless.* Duty cycle …………. starts per hour.*
Hydraulic Oil immersed pump.* Open pump.* Electronic valve.* Variable frequency control.* Cooler.* – To be determined. Pulling or pushing ram.* Energy Accumulation Facility.* Duty cycle 120 starts per hour.*
* Delete as necessary
Page 54 of 72 Ref: NR/SP/ELP/27228 Issue: 1 Date: October 2005
SCHEDULE 1: Requirements for a Particular Installation
ITEM REQUIREMENT √ / X
5. Control System Automatic Push Button.* Call and Send.* Full Collective, Car Preference.* Fire fighting control Yes/No.* Evacuation control Yes/No.* Independent facility provided Remote isolation Yes/No.* Remote monitoring Yes/No.*
6. Electricity Supply 3 phase 400 volts 50 Hz 4 wire Earthed Neutral Yes.*
Standby Supply Will/Will not be provided.*
Secondary Local Supply Not applicable Generator Supply Not applicable
7. Doors/ Power operated Yes/No.* Entrances Single speed side opening.* Two speed side opening.* Centre opening.* Two speed centre opening.* Shutter Gates.* Glazed* Other - 100mm w x 600mm h min. vision panels
Clear door dimensions 1100 mm width 2100 mm height
Architraves (material) Black Raltex 316g stainless Splayed design Yes/No
Page 55 of 72 Ref: NR/SP/ELP/27228 Issue: 1 Date: October 2005
SCHEDULE 1: Requirements for a Particular Installation
ITEM REQUIREMENT √ / X
8. Fire rating of entrances One Hour.* None*
9. Car Design and Finishes Plywood backing to wall panels Yes/No Linen St. St walls Altro Atlas floor White P.P.C Steel ceiling New Gardinia handrail
10. Door Finishes 180 grit stainless steel.* Linen patterned stainless steel* Colour finish stainless steel* Glass panels*
Other
11. Enclosure Existing* New Steel Self supporting* New masonry shaft To be provided by others*
Construction materials TBC
Cladding Steel Glass Other …………………………….…....… See drawing No ……………………...…
12. Smoke detector to top of lift Yes/No* ………… As required shaft Type ………… by Others Model No. …………
Page 56 of 72 Ref: NR/SP/ELP/27228 Issue: 1 Date: October 2005
SCHEDULE 1: Requirements for a Particular Installation
ITEM REQUIREMENT √ / X
13. Sump Pump to lift pit Yes/No* ……… Provision to Type ……… be included Capacity ……… in case of requirement.
14. Emergency Lift Car Telephone Autodialing* Hard wired to Control Point* Dual System*
15. CCTV Installation Yes / No* Type ……………….. Location ……………
16. Urine Detection Yes/No*
17. Damp Conditions In the Lift Yes/No (Anticipated) Shaft All shaft fixings to be stainless steel* Protection requirements specified.
18. Access to machine room Access lighting* Items to be included by Lift Access emergency Contractor lighting* Hoops to existing ladder* Replace existing arrangement* Signs to machine room By door(s) others Other*……………………… ……………………………… ……………………………… ……………………………… ……………………………… ……………………………… ………………………………
Page 57 of 72
Butler & Young Lift Consultants Ltd. Mott MacDonald Ltd.
SECTION 5.00
REFERENCE INFORMATION
L3508 14 Issue 01 Langley Station: CrossRail Step-Free Access Project Installation of 3 Network Rail lifts
Ref: 317520/MMRA/WO023/0003 Version: 01 Date: 19/12/2013
Appendix I.6 Signal Sighting
Ref: 317520/MMRA/WO023/0003 Version: 01 Date: 19/12/2013
General The approaches to Langley Station from both the east (London) and the west (Reading) are on a curve for all lines. The existing Up and Down Main seem to have adequate sighting; however there is a possibility that there are existing signal sighting issues for the Up and the Down both Relief lines. The existing signal for Down Relief does not have adequate sighting on the approach to Langley Station from the east (London). There may be banner repeater on the approach to platform 3 on the Down Relief; however this could not be verified onsite as only the rear of the suspected banner signal is visible from the platform edge. Please refer to existing signalling plan and signal sighting forms for reliable information. On the Up Relief, the approach to platform 4 from the west (Reading) is on a left hand curve with foliage close to the footbridge potentially. This could be obscuring the sighting of the signal at the end of platform 4 in the east. However there is no banner repeater visible from the footbridge. Please refer to existing signalling plan and signal sighting forms for reliable information.
The lift shaft on platform 2/3 should be located such that the sighting on the Down Relief is not affected or made worse.
Ref: 317520/MMRA/WO023/0003 Version: 01 Date: 19/12/2013
Langley
If this option is considered the lift shaft needs to be centred for platforms 2/3 to achieve adequate clearance from the platform edges. This is important for the Down Relief as there potentially existing sighting issues for the signal beyond platform 3. The lift shafts on platform 1 and 4 will need adequate clearance from the platform edge for good signal sighting to be maintained.
Ref: 317520/MMRA/WO023/0003 Version: 01 Date: 19/12/2013
Appendix J Costings