DOCSLIB.ORG

GUIDANCE NOTE PERMANENT WAY – Planning, Inspection

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
GUIDANCE NOTE PERMANENT WAY – Planning, Inspection Ref No: HGR-A0401 Issue No: 01 Issue Date: April 2018 HERITAGE RAILWAY ASSOCIATION GUIDANCE NOTE PERMANENT WAY – Planning, Inspection & Maintenance Purpose This document describes good practice in relation to its subject to be followed by Heritage Railways, Tramways and similar bodies to whom this document applies. Endorsement This document has been developed with, and is fully endorsed by, Her Majesty’s Railway Inspectorate (HMRI), a directorate of the Office of Rail and Road (ORR). Disclaimer The Heritage Railway Association has used its best endeavours to ensure that the content of this document is accurate, complete and suitable for its stated purpose. However it makes no warranties, express or implied, that compliance with the contents of this document shall be sufficient to ensure safe systems of work or operation. Accordingly the Heritage Railway Association will not be liable for its content or any subsequent use to which this document may be put. Supply This document is published by the Heritage Railway Association (HRA). Copies are available electronically via its website https://www.hra.uk.com/guidance-notes Issue 01 page 1 of 11 © Heritage Railway Association 2018 The Heritage Railway Association, Limited by Guarantee, is Registered in England and Wales No. 2226245 Registered office: 2 Littlestone Road, New Romney, Kent, TN28 8PL HGR-A0401-Is01 ______ Permanent Way - Planning, Inspection & Maintenance Users of this Guidance Note should check the HRA website https://www.hra.uk.com/guidance-notes to ensure that they have the latest version.. Table of Contents 1. Introduction ........................................................................................................................................... 3 2. Recommendations ................................................................................................................................ 3 3. Strategy and Planning .......................................................................................................................... 3 Long Term Plan .......................................................................................................................................... 3 Responsible Officer .................................................................................................................................... 3 4. SMS - Track Standards Document ....................................................................................................... 4 5. Inspections & Patrolling ........................................................................................................................ 6 6. Maintenance of Plain Track .................................................................................................................. 6 7. Curved Track, Transition Curves & Superelevation (Cant) .................................................................. 8 8. References ........................................................................................................................................... 9 Appendix A: Examples of equilibrium cants for 4’-8½” and 2’-6” gauges ................................................ 10 Issue 01 page 2 of 11 © Heritage Railway Association 2018 The Heritage Railway Association, Limited by Guarantee, is Registered in England and Wales No. 2226245 Registered office: 2 Littlestone Road, New Romney, Kent, TN28 8PL HGR-A0401-Is01 ______ Permanent Way - Planning, Inspection & Maintenance 1. Introduction A. This Guidance has been provided to assist the duty holder of heritage railways, tramways and similar bodies in meeting the requirements for operating a railway on verifiably safe permanent way with suitable documentation in their Safety Management System (SMS) as required under the Railways and Other Guided Transport Systems (Safety) Regulations 2006: SI 2006 / 0599 (ROGS). It may also be of use to those operators of systems, such as rail mounted cableways, that do not come under these regulations. B. Constituent railways are a diverse range of operations with differing gauges, speeds, axle loads, service frequencies and, therefore, needs. Whilst safety is always paramount, the needs of individual railways differ significantly and a guidance document with common track standards would not be appropriate. A common document may well be too simplistic for some and too onerous and unnecessary for others. C. This Guidance therefore recommends that each Company determines track standards appropriate to their operation and includes those standards in their written Safety Management System (SMS). Track and associated infrastructure should then be inspected and maintained to those standards. D. This document suggests values for dimensions at various points, many of these are relative to UK standard gauge (1435mm / 4' 8 1/2"). Alternative dimensions may need to be provided for track of other gauges E. The term ‘staff’ in this Guidance note should be taken to include unpaid volunteer workers as well as paid staff. F. The term ‘railway’ should be taken to include heritage tramways and similar bodies where appropriate and ‘train’ should be similarly interpreted. 2. Recommendations A. This Guidance note is issued as recommendations to duty holders. B. Many railways are already operating systems, which, in some cases, are to a higher standard than those set out in this Guidance note. This highlights the fact that it is the responsibility of the duty holder having undertaken the necessary risk assessments, to implement controls that are applicable and necessary relative to the operating conditions on their railway. C. Where railways decide to take actions that are not in conformity with these recommendations, following appropriate risk assessments or for other reasons, it is recommended that those decisions are reviewed by the senior management body of the organisation and a formal minute is recorded of both the decision reached and the reasons for reaching it. 3. Strategy and Planning Long Term Plan A. By their nature, ‘maintenance’ and ‘renewal’ are closely linked and best viewed together in the longer term. Renewal of track capable of further use with minor maintenance is both wasteful of resources and unnecessarily costly. Equally, track approaching end of life and in need of constant major maintenance could also waste precious labour resources when wholesale renewal is planned in the short term. A Long-Term Plan will highlight where maintenance gives way to wholesale renewal. Responsible Officer B. To be effective, a Long-Term Plan will look forward at least five years and is best produced by someone knowledgeable in and responsible for track matters on their particular railway. It might be a foreman or supervisor on smaller lines or a PW or Civil Engineer on larger operations. British Railways Track Design Construction Maintenance published by the Permanent Way Institution is recommended reading for those involved in the supervision of maintenance and renewals. First published in 1943, the 1964 3rd Edition is particularly useful, containing materials and methods more likely still to be in use on many heritage lines today. Issue 01 page 3 of 11 © Heritage Railway Association 2018 The Heritage Railway Association, Limited by Guarantee, is Registered in England and Wales No. 2226245 Registered office: 2 Littlestone Road, New Romney, Kent, TN28 8PL HGR-A0401-Is01 ______ Permanent Way - Planning, Inspection & Maintenance 4. SMS - Track Standards Document A. Standards should be determined by individual railways (mindful of ORR requirements – RSP5 Guidance on Minor Railways), being dependent upon factors such as axle loading, maximum speed and other relevant circumstances but safety is the common thread and always paramount. Whilst over-engineering and attaining higher standards than needed is commendable and can minimise routine maintenance in the long term, unnecessary costs can arise. This is where the expertise of the PW Engineer and the Long Term Plan are of benefit. B. A Track Standards Document will specify tolerances and identify what is acceptable and what is not. It would probably contain references to the areas that are briefly described below: 1. Load and Structure Gauge/Kinematic Envelope – a drawing detailing both static and dynamic clearances needed between trains and fixed line-side structures. The minimum clearance to fixed structures should include allowance for end and centre throw of vehicles. 2. Trackbed, Drainage, Ballast and Shoulders – for renewals and new works, this might detail preparation of the sub-base, drainage requirements and type, size and minimum depth of ballast below sleepers (150-200mm) and width of ballast shoulders (200-350mm). Note: Levelling and consolidation by tamper requires a greater depth of ballast below sleepers. 3. Rail Type and Wear – type(s) and minimum weight of rail to be used and the maximum headwear and limit of side-cutting permitted. Axle loading will determine the minimum weight of rail needed but 110/113lb flat bottom and 98lb bullhead will accommodate axle loads of 25 tons. 4. Joints & Expansion Gaps – the type of joints permitted (supported, semi-supported, staggered etc.) and the expansion gap required for given rail lengths. This section might include a statement of frequency for lubrication of fishplates. 5. Sleepers & Fastenings – type, length and spacing of sleepers, baseplates and type of fastenings. Standard gauge is normally 24 sleepers per 60’ (18m) rail with joint sleepers spaced 2’-0” (600mm) apart. 6. Gauge
Load more

Recommended publications
  • Annual Report of the Board of Regents of the Smithsonian Institution
    THE DEVELOPMENT OF THE AMERICAN RAIL AND TRACK, AS ILLUS- TRATED BY THE COLLECTION IN THE U. S, NATIONAL MUSEUM. By J. Elfreth Watkins, Curator of the Department of Transportation and Engineering. In the brief report upon the section of steam transportation for the year 1887, a statement was made to the effect that considerable in- formation had been secured which it was hoped to use "in preparing- a series of models to illustrate the beginnings and development of the English and American systems of track. "While illustrated histories of the steamboat and locomotive are numerous, I am not aware that any systematic attempt has been made to preserve the history of the development of the systems of permanent way which, after many years of experiment, are now being reduced to a series of standards depending on the traffic." (Report of U. S. National Museum, 1887, p. 79.) These expectations were realized to a sufficient extent to warrant the preparation of the series of original rail sections, models, and drawings to illustrate the origin and development of American perma- nent way for the Exposition at Cincinnati in 1888. The interest manifested in that collection led me to present a paper entitled "The Development of the American Rail and Track" at the annual convention of the American Society of Civil Engineers, at Sea Bright, New Jersey, June 21, 1889. This will appear in the transac- tions of that society during the coming year.* At the conclusion of that paper I took occasion to state that in its preparation " I preferred to confine myself to a description of such rails as are represented by original sections, models, or drawings in the section of transportation and engineering in the U.
    [Show full text]
  • A Prototype of Track Gauge and Cant Measurement Device for Curved Railroad by Using Microcontroller
    Advances in Engineering Research, volume 193 2nd International Symposium on Transportation Studies in Developing Countries (ISTSDC 2019) A Prototype of Track Gauge and Cant Measurement Device for Curved Railroad by Using Microcontroller Rony Alvin Alfatah Wahyu Tamtomo Adi Line Building Engineering and Railways Line Building Engineering and Railways Indonesia Railway Polytechnique Indonesia Railway Polytechnique Madiun, Indonesia Madiun, Indonesia [email protected] [email protected] Dwi Samsu Al Musyafa Septiana Widi Astuti Line Building Engineering and Railways Line Building Engineering and Railways Indonesia Railway Polytechnique Indonesia Railway Polytechnique Madiun, Indonesia Madiun, Indonesia [email protected] [email protected] Abstract—The purpose of this study is to create a tool for (track gauge) and the difference in elevation between the measuring track gauge and cant in the curved railroad with outer rail and the inner rail which is called can’t on the digital systems which can improve railroad maintenance with railroad curvature using a vernier caliper sensor and an automatic recording system for more efficient and easy to gyroscope to get the parameters of the track gauge, cant of use. This tool uses Arduino IDE as an application the arch, and the temperature of the measuring instrument. programming language and microcontroller board combined with several sensors to measure many parameters of track The data can be processed and monitored directly through an gauge and cant. Android devices with a Wi-Fi connection can android device using node MCU as a liaison of an android display the measurement results display real-time data on the device with a measuring instrument via wifi connectivity.
    [Show full text]
  • the Swindon and Cricklade Railway
    The Swindon and Cricklade Railway Construction of the Permanent Way Document No: S&CR S PW001 Issue 2 Format: Microsoft Office 2010 August 2016 SCR S PW001 Issue 2 Copy 001 Page 1 of 33 Registered charity No: 1067447 Registered in England: Company No. 3479479 Registered office: Blunsdon Station Registered Office: 29, Bath Road, Swindon SN1 4AS 1 Document Status Record Status Date Issue Prepared by Reviewed by Document owner Issue 17 June 2010 1 D.J.Randall D.Herbert Joint PW Manager Issue 01 Aug 2016 2 D.J.Randall D.Herbert / D Grigsby / S Hudson PW Manager 2 Document Distribution List Position Organisation Copy Issued To: Copy No. (yes/no) P-Way Manager S&CR Yes 1 Deputy PW Manager S&CR Yes 2 Chairman S&CR (Trust) Yes 3 H&S Manager S&CR Yes 4 Office Files S&CR Yes 5 3 Change History Version Change Details 1 to 2 Updates throughout since last release SCR S PW001 Issue 2 Copy 001 Page 2 of 33 Registered charity No: 1067447 Registered in England: Company No. 3479479 Registered office: Blunsdon Station Registered Office: 29, Bath Road, Swindon SN1 4AS Table of Contents 1 Document Status Record ....................................................................................................................................... 2 2 Document Distribution List ................................................................................................................................... 2 3 Change History .....................................................................................................................................................
    [Show full text]
  • Structure Gauge Measuring Equipment Using Laser Range
    PAPER Structure Gauge Measuring Equipment Using Laser Range Scanners and Structure Gauge Management System Takashi TOYAMA Signalling Systems Laboratory, Signalling and Transport Information Technology Division Nozomi NAGAMINE Image Analysis and IT Laboratory, Signalling and Transport Information Technology Division Tatsuya OMORI Kenichi KITAO Signalling Systems Laboratory, Signalling and Transport Information Technology Division (Former) Ryuta NAKASONE Image Analysis and IT Laboratory, Signalling and Transport Information Technology Division Periodic measurement of the structure gauge is essential to ensure safe train operation. Measuring the clearance gauge however, is time and labor intensive given the vast number of trackside facilities. An inexpensive and efficient measuring device using laser range scanners was therefore developed. A management system is also being developed, which maps mea- sured three-dimensional point cloud data to facility data. This paper describes the problems and solutions related to applying the laser range scanners for structural gauging, and pres- ents results obtained from experiments. This paper also describes progress achieved in the development of the management system. Keywords: laser range scanner, LiDAR, structure gauge, clearance car, facility management, 3-D point cloud 1. Introduction ing developed. This paper describes the problems and solutions relat- The structure gauge or clearance gauge is the space ed to applying the laser range scanners for structure gaug- around the track, into which no part of a trackside struc- ing, and p resents r esults obtain ed f rom experi ments. This ture shou ld enter o n any a cc ount. Figu re 1 sh ow s an ex- paper a lso des cribes progr es s ach ieved in the dev elopm ent ample of the structure gauge applied on railways in Japan.
    [Show full text]
  • WMATA's Automated Track Analysis Technology & Data Leveraging For
    WMATA’S Automated Track Analysis Technology & Data Leveraging for Maintenance Decisions 1 WMATA System • 6 Lines: 5 radial and 1 spur • 234 mainline track miles and 91 stations • Crew of 54 Track Inspectors and 8 Supervisors walk and inspect each line twice a week. • WMATA’s TGV and 7000 Series revenue vehicles, provide different approaches to automatic track inspection abilities. 2 Track Geometry Vehicle (TGV) • Provides services previously contracted out. • Equipped with high resolution cameras inspecting ROW and tunnels, infrared camera monitoring surrounding temperatures, and ultrasonic inspection system. • Measures track geometry parameters, and produces reports where track parameters do not meet WMATA’s maintenance and safety standards. 3 TGV Measured Parameters . Track gage, rail profile, cross level, alignment, twists, and warps. Platform height and gap, . 3rd rail: height, gage, missing cover board, and temperature. • Inspects track circuits transmitting speed commands and signals for train occupancy detection with different carrier frequencies and code rates. 4 TGV Technology • Parameters such as rail profile, gage distances, 3rd rail and platform gap distances are measured via laser beam shot across running rails, and platforms. • High-speed/high-resolution cameras take high resolution images of the surface where lasers makes contact with the rail. 5 TGV Technology • Track profile is measured via vertical accelerometers, and an algorithm converting acceleration into displacement. • Track alignment is measured with a lateral accelerometer in combination with image analysis. • Warps, twists, and cross levels are measured via gyros and inclinometers, along with distance measurements. 6 Kawasaki 7000 Series Cars • Cars are assembled into 4-Pack sets for operation. • 7K cars are equipped with a system of accelerometers that are mounted on 15% of the B cars.
    [Show full text]
  • Effect of Vehicle Performance at High Speed and High Cant Deficiency
    Proceedings of the ASME/ASCE/IEEE 2011 Joint Rail Conference JRC2011 March 16-18, 2011, Pueblo, Colorado, USA JRC2011-56066 EXAMINATION OF VEHICLE PERFORMANCE AT HIGH SPEED AND HIGH CANT DEFICIENCY Brian Marquis Jon LeBlanc U.S. Department of Transportation, Research and U.S. Department of Transportation, Research and Innovative Technology Administration, Volpe Innovative Technology Administration, Volpe National Transportation Systems Center National Transportation Systems Center Cambridge, Massachusetts, United States Cambridge, Massachusetts, United States Ali Tajaddini U.S. Department of Transportation, Federal Rail Road Administration, Office of Research and Development, Washington D.C., United States ABSTRACT The research for this paper was part of work done for the FRA In the US, increasing passenger speeds to improve trip time to support the FRA Railroad Safety Advisory Committee usually involves increasing speeds through curves. Increasing (RSAC) Track Working Group’s Vehicle Track Interaction speeds through curves will increase the lateral force exerted on (VTI) Task Force. The mission of the VTI task force was to track during curving, thus requiring more intensive track update Parts 213 and 238 of the Code of Federal Regulations maintenance to maintain safety. These issues and other (CFR) regarding rules for high speed (above 90mph) and high performance requirements including ride quality and vehicle cant deficiency (about 5 inches) operations. The task force stability, can be addressed through careful truck design. focused on a number of issues including refinement of VTI Existing high-speed rail equipment, and in particular their safety criteria, track geometry standards, vehicle qualification bogies, are better suited to track conditions in Europe or Japan, procedures and requirements and track inspection in which premium tracks with little curvature are dedicated for requirements, all with a focus on treating the vehicle and track high-speed service.
    [Show full text]
  • Component Parts of a Permanent Way
    RAILWAY ENGINEERING Dept. of Civil Engineering - KLU COMPONENT PARTS OF A PERMANENT WAY Following are the components of a permanent way. (i) Subgrade (ii) Ballast (iii) Sleepers (iv) Rails (v) Fixture and Fastening In a permanent way, rails are joined either by welding or by using fish plates and are fixed with sleepers by using different types of fastenings. Sleepers are properly placed and packed with ballast. Ballast is placed on the prepared subgrade called formation. REQUIREMENTS OF AN IDEAL PERMANENT WAY Following are the basic requirements of a permanent way: (i) The guage should be uniform and correct. (ii) Both the rails should be at the same level in a straight track. (iii) On curves proper superelevation should be provided to the outer rail. (iv) The permanent way should be properly designed so that the load of the train is uniformly distributed over the two rails. (v) The track should have enough lateral strength. (vi) The radii and superelevation, provided on curves, should be properly designed. (vii) The track must have certain amount of elasticity. (viii) All joints, points and crossings should be properly designed. (ix) Drainage system of permanent way should be perfect. (x) All the components of permanent way should satisfy the design requirements. (xi) It should have adequate provision for easy renewals and repairs. B.G.Rahul RAILWAY ENGINEERING Dept. of Civil Engineering - KLU TYPES OF RAILS The rails used in the construction of railway track are of following types: 1. Double headed rails(D.H. Rails) 2. Bull headed rails(B.H.Rails) 3. Flat footed rails(F.F.Rails) DOUBLE HEADED RAILS The rail sections, whose foot and head are of same dimensions, are called Double headed or Dumb-bell rails.
    [Show full text]
  • Rail Profile with AECOM
    prepared for North Carolina Statewide North Carolina Department of Transportation Multimodal Freight Plan prepared by Cambridge Systematics, Inc. Rail Profile with AECOM February 7, 2017 report North Carolina Statewide Multimodal Freight Plan Rail Profile prepared for North Carolina Department of Transportation prepared by Cambridge Systematics, Inc. 730 Peachtree Street NE, Suite 500 Atlanta, GA 30318 with AECOM 701 Corporate Center Drive, Suite 475 Raleigh, North Carolina 27607 date February 7, 2017 North Carolina Statewide Multimodal Freight Plan Table of Contents 1.0 Overview ............................................................................................................................................. 1-1 1.1 Purpose ...................................................................................................................................... 1-1 1.2 Methods and Data Overview ..................................................................................................... 1-1 1.3 Section Organization.................................................................................................................. 1-2 2.0 Inventory ............................................................................................................................................. 2-1 2.1 Facilities ..................................................................................................................................... 2-1 2.1.1 Railroad System ...........................................................................................................
    [Show full text]
  • Enhancing Interoperability for Facilitation of International Railway Transport
    ENHANCING INTEROPERABILITY FOR FACILITATION OF INTERNATIONAL RAILWAY TRANSPORT This study was prepared by Transport Division ESCAP. The draft of the study was prepared by Mr. Vasile-Neculai OLIEVSCHI, Consultant, under the supervision of Mr. Sandeep Raj Jain, Economic Affairs Officer, Transport Division ESCAP. The views expressed in this guide are those of the authors and do not necessarily reflect the views of the United Nations Secretariat. The opinions, figures and estimates set forth in this guide are the responsibility of the authors, and should not necessarily be considered as reflecting the views or carrying the endorsement of the United Nations. The designations employed and the presentation of the material in this study do not imply the expression of any opinion whatsoever on the part of the Secretariat of the United Nations concerning the legal status of any country, territory, city or area, or of its authorities, or concerning the delimitation of its frontiers or boundaries. Mention of firm names and commercial products does not imply the endorsement of the United Nations. This study is issued without formal editing. ______________________ ENHANCING INTEROPERABILITY FOR FACILITATION OF INTERNATIONAL RAILWAY TRANSPORT Bangkok, 2018 Table of Contents EXECUTIVE SUMMARY .................................................................................................................... 1 I. BACKGROUND ......................................................................................................................... 3 II. ASIAN
    [Show full text]
  • Unification of the Cant and Maximum Values for Cant Deficiency
    Technologijos ir menas, 2016 (7), ISSN 2029-400X UNIFICATION OF THE CANT AND MAXIMUM VALUES FOR CANT DEFICIENCY O. Patlasov, E. Patlasov Dnipropetrovsk National University of Railway Transport named after Academician V. Lazaryan [email protected] Abstract. The article provides the analysis of the TSI requirement to technical specification of interoperability related to cant in curve. Based on the identified discrepancies it proposes to adopt uniform criteria for the established of maximum cant and cant deficiency for gauge 1435, 1520, 1600 and 1668 mm. Keywords: Interoperability Directives, Technical Specifications for Interoperability (TSI), cant, cant deficiency, accel- eration, conventional and high-speed rail network. Introduction revision of existing TSIs, keeps them up to date, and supports the sector in their application by issuing ap- In order to enable citizens of the Union, economic plication guides and by dissemination and training ac- operators and regional and local authorities to benefit tions. When necessary, ERA may also draft new TSIs, to the full from the advantages deriving from establish- based on a mandate from the Commission. Links to ing an area without internal frontiers, it is advisable, in all TSIs including their accompanying documents and particular, to improve the interlinking and interoper- previous versions are to be found on the right hand ability of national high-speed train networks, as well as side of this page. An overview of the chronology of access thereto. all TSIs (including the repealed
    [Show full text]
  • Investigation of Glued Insulated Rail Joints with Special Fiber-Glass Reinforced Synthetic Fishplates Using in Continuously Welded Tracks
    CORE Metadata, citation and similar papers at core.ac.uk Provided by Repository of the Academy's Library POLLACK PERIODICA An International Journal for Engineering and Information Sciences DOI: 10.1556/606.2018.13.2.8 Vol. 13, No. 2, pp. 77–86 (2018) www.akademiai.com INVESTIGATION OF GLUED INSULATED RAIL JOINTS WITH SPECIAL FIBER-GLASS REINFORCED SYNTHETIC FISHPLATES USING IN CONTINUOUSLY WELDED TRACKS 1 Attila NÉMETH, 2 Szabolcs FISCHER 1,2 Department of Transport Infrastructure, Széchenyi István University Győr, Egyetem tér 1 H-9026 Győr, Hungary, email: [email protected], [email protected] Received 29 December 2017; accepted 9 March 2018 Abstract: In this paper the authors partially summarize the results of a research on glued insulated rail joints with fiber-glass reinforced plastic fishplates (brand: Apatech) related to own executed laboratory tests. The goal of the research is to investigate the application of this new type of glued insulated rail joint where the fishplates are manufactured at high pressure, regulated temperature, glass-fiber reinforced polymer composite plastic material. The usage of this kind of glued insulated rail joints is able to eliminate the electric fishplate circuit and early fatigue deflection and it can ensure the isolation of rails’ ends from each other by aspect of electric conductivity. Keywords: Glued insulated rail joint, Fiber-glass reinforced fishplate, Polymer composite plastic material, Laboratory test 1. Introduction The role of the rail connections (rail joints) is to ensure the continuity of rails without vertical and horizontal ‘step’, as well as directional break. The opportunities to connect rails are the fishplate joints, welding, and dilatation structure (rail expansion device) [1].
    [Show full text]
  • Determination of Tramway Wheel and Rail Profiles to Minimise Derailment
    Rail Te~h~~l~~~ l~l~~t at Manchester Metropolitan University Determination of Tramway Wheel and Rail Profiles to Minimise Derailment Date: 12th February 2008 RTU Ref: 90/3/A Client: ORR Authors: Dr Paul Allen Dr Adam Bevan Senior Research Engineer Senior Research Engineer Tel: 0161 247 6251 Tel: 0161 247 6514 E-mail: [email protected] E-mail: [email protected] ,; oFFacE o~ aa~~ a~cu~arioN Determination of Tramway Wheel and Rail Profiles to Minimise Derailment Final Report Project Title Determination of Tramway Wheel and Rail Profiles to Minimise Derailment(ORR/CT /338/DTR) Project Manager Dr. Paul Allen Client ORR Date 12/02/2008 Project Duration 6 Months Issue 1 Distribution Dudley Hoddinott (ORR) David Keay (ORR) PDA/AB/SDI/JMS (RTU) Project file Report No. 90/3/A Reviewed bv: Prof. Simon Iwnicki Contact: Dr Paul Allen Senior Research Engineer Tel: 0161 247 6251 E-mail: [email protected] si !Yw. 2n'.-^y..yy.:m'~ ~ 4'~:~~ .!fit'•.. ~' .y,.l.: CONFIDENTIAL Determination of Tramway Wheel and Rail Profiles to Minimise Derailment Final Report Summary As the first phase of a three stage project, the Office of Rail Regulation (ORR) commissioned a wide ranging study to review current tramway systems and their wheel and rail profiles within the UK. Completed by the Health and Safety Executive (HSE) Labs, the work was reported under the Phase 1 ORR study document, entitled `A survey of UK tram and light railway systems relating to the wheel/rail interface' ~'~. Phase 2 of the work, presented within this report, analyses this initial study and extends the work through the application of wheel-rail contact analysis techniques and railway vehicle dynamics modelling to determine optimised wheel and rail profile combinations which minimise derailment risk and wear.
    [Show full text]