Mixbury, Finmere, Westbury, Turweston, Evenley and Fringford
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Mixbury, Finmere, Westbury, Turweston, Evenley and Fringford February 2020 1MC07-CEK-IN-PRE-CS07_CL13-000001 Wormleighton, Priors Hardwick, Byfield & Boddington 1 Introductions 2 Landscape Strategy 3 Operational Noise 4 Construction arrangements 1MC07-CEK-IN-PRE-CS07_CL13-000001 Introductions 1MC07-CEK-IN-PRE-CS07_CL13-000001 Overview & Context Community Engagement Landscape approach London Construction Arrangements Operational Noise 1MC07-CEK-IN-PRE-CS07_CL13-000001 Disclaimer The following slides show our current proposals which are subject to further review, discussion and approval from consent granting bodies. 1MC07-CEK-IN-PRE-CS07_CL13-000001 Landscape Strategy Turweston, Westbury, Mixbury, Finmere, Evenley & Fringford 1MC07-CEK-IN-PRE-CS07_CL13-000001 Landscape Strategy 1. Landscape Approach - HS2 Vision 2. Landscape Character 3. Key Landscape Features 4. Landscape Vernacular 5. Driving the Vision 6. Landscape Planting Plans 1MC07-CEK-IN-PRE-CS07_CL13-000001 1. Landscape Approach OUR Aims as designers HS2 Vision • Understanding the Vernacular • People • Understanding the local community • Adapting the design • Passenger Experience • Place • Re-engaging the countryside • Promoting Biodiversity • Time • Reinforcing planting 1MC07-CEK-IN-PRE-CS07_CL13-000001 2. Landscape Character 1MC07-CEK-IN-PRE-CS07_CL13-000001 3. Key Landscape Characteristics 1MC07-CEK-IN-PRE-CS07_CL13-000001 Landscape Character Clay Vale of Buckingham Preston Bissett Plateau Edge & Hethe Wooded Estatelands Recognise the importance and value of the historic hedgerow pattern and replace where it has been lost to enhance the landscape character and strengthen connectivity of habitats. Encourage the establishment of new hedgerow trees. Maintain and improve the condition of existing hedgerows through traditional cutting regimes Recognise the importance of new woodland planting to minimise the impact of new infrastructure and manage using traditional techniques to create and manage a wide diversity of habitats. Recognise the importance of neutral grassland Recognise the importance of the character of minor roads by the planting and management of hedgerows and verges and limiting urbanising elements such as signs and kerbs. Panorama Q 1MC07-CEK-IN-PRE-CS07_CL13-000001 Landscape Character River Great Ouse Claylands & Cotswolds (Brackley) & Writtlebury Ridge Westbury – Biddlesden Great Ouse Valley LCA & Oatleys Plateau LCA Recognise the importance and value of the existing historic hedgerow pattern and plant up with new hedgerow trees. Seek to restore the historic hedgerow pattern where it has been lost to enhance the landscape character and strengthen the ecological diversity and implement management through traditional cutting regimes. Recognise the importance of woodland and through planting and management using traditional techniques create and manage a wide diversity of habitats. Recognise the importance of historic meadows and unimproved and semi-improved grassland close to watercourses and promote the use of permanent pasture, with low stocking density and flooding regimes to promote biodiversity and landscape enhancement. 1MC07-CEK-IN-PRE-CS07_CL13-000001 5. Driving the Vision • Turweston, • Westbury, • Mixbury, • Finmere & Evenley Through successful design and delivery of enhancement measures, such as creating new public access, opportunities for education, art and interpretation of the landscape, biodiversity and heritage, handing back land for farming, or managing land for economic return such as woodland for fuel or opportunities for grassed areas to be opened up to grazing rights 1MC07-CEK-IN-PRE-CS07_CL13-000001 Landscape information Turweston, Westbury, Mixbury, Finmere Evenley 1MC07-CEK-IN-PRE-CS07_CL13-000001 Landscape Boundary Treatment Concept Characteristic regional hedges Any part of Britain which possesses hedges can be identified by them. Clues may be given by the way in which they are managed, the type of associated bank or ditch, the hedge plants, or the way in which the climate has influenced growth. 1MC07-CEK-IN-PRE-CS07_CL13-000001 Landscape Pond - Design Concept 1MC07-CEK-IN-PRE-CS07_CL13-000001 Landscape Planting 1MC07-CEK-IN-PRE-CS07_CL13-000001 Landscape Planting 1MC07-CEK-IN-PRE-CS07_CL13-000001 Increasing Biodiversity 1MC07-CEK-IN-PRE-CS07_CL13-000001 Landscape Planting Plan –Finmere 1MC07-CEK-IN-PRE-CS07_CL13-000001 Landscape Planting Plan –Finmere cont.. 1MC07-CEK-IN-PRE-CS07_CL13-000001 Landscape Planting Plan - Mixbury 1MC07-CEK-IN-PRE-CS07_CL13-000001 Landscape Planting Plan – River Great Ouse (Westbury) Culvert over river Great Ouse 1MC07-CEK-IN-PRE-CS07_CL13-000001 Landscape Planting Plan – Turweston Cutting (A422) 1MC07-CEK-IN-PRE-CS07_CL13-000001 Landscape Planting Plan – Turweston Cutting (Oatley Hall) 1MC07-CEK-IN-PRE-CS07_CL13-000001 Landscape Planting Plans – River Great Ouse & A43 1MC07-CEK-IN-PRE-CS07_CL13-000001 Operational Noise 1MC07-CEK-IN-PRE-CS07_CL13-000001 Operational Noise Engagement Toolkit Noise Source Noise Modelling Information to be shared on: • Noise Source – where the noise will be generated from • Noise Modelling – how we have modelled it • Obligations – our obligations under the Obligations Mitigation Environmental Minimum Requirements and Information Paper E20 • Mitigation– how we will design and build the noise barrier, bunds Specific to the Local Area • Local Area – share a specific response to compare to the Environmental Statement noise maps 1MC071MC06-CEK-CEK-IN-SE-PRE-PRE-CS07_CL13-C002-000032-000001 Noise Source 1MC07-CEK-IN-PRE-CS07_CL13-000001 Noise Source Ambient baseline Rail noise Altered Roads Existing baseline from Assumed reasonable Assumed reasonable selected receptors worst case from train and worst case for changes to identified in the ES track roads projected to Opening Year 1MC07-CEK-IN-PRE-CS07_CL13-000001 Noise Source Multi height/source method Conventional Captive Compatible 1MC07-CEK-IN-PRE-CS07_CL13-000001 Noise Source Train Types & Service Pattern Classic Compatible • Runs on conventional lines (ECML / WCML) and HS2 • Standard rail gauge • Less aerodynamic shielding • Louder Captive • Runs of HS2 line only • Greater gauge clearance • More aerodynamic shielding Indicative Hourly Phase 2 HS2 Service Pattern • Quieter 1MC07-CEK-IN-PRE-CS07_CL13-000001 Track Types ES based on ballasted track Current proposals based on slab track 1MC07-CEK-IN-PRE-CS07_CL13-000001 Noise Modelling 1MC07-CEK-IN-PRE-CS07_CL13-000001 Noise Modelling Terms Used Term Explanation Residential receptor Permanent residential building Non-residential receptor e.g. schools, hospitals, places of worship, and also commercial properties such as offices and hotels External Amenity Space relatively quiet outdoor areas: for sole use by residents as part of the amenity of their dwelling; protected for sole use by a limited group of residents as part of the amenity of their dwelling; or protected as publicly accessible for residents as part of the amenity of their dwelling that are nearby. LpAFmax Maximum sound pressure at a point in time; ‘peak noise’ LpAeq,T Weighted equivalent continuous sound level measured over a defined period, T; it allows fluctuating noise levels to be described in terms of a single figure level LOAEL Lowest Observed Adverse Effect Level; established from WHO guidelines as the level at which adverse effects on health and quality of life can be detected SOAEL Significant Observed Adverse Effect Level; … the level at which significant adverse effects on health and quality of life occur 1MC07-CEK-IN-PRE-CS07_CL13-000001 Noise Modelling Environmental Statement Stage • Noise modelling undertaken by Arup based on HS1 model and further tested and validated across the a number of HSR projects • Based on reasonably foreseeable worst case, based on: • Assessment of train noise using ‘just TSI-compliant train’ • Train paths based on Phase 1, then Phase 2 operations including operating speed 330 kph in 90% cases • Terrain model based on existing surfaces • Uses alignment based on HS2 Act to profile viaducts, cuttings and embankments to derive noise impacts • Determined initial requirements for mitigation • Wayside barriers • Earthworks • Viaduct barriers 1MC07-CEK-IN-PRE-CS07_CL13-000001 Noise Modelling MWCC Design Stage • Noise model recreated by MWCC teams environment and validated by HS2 supported by Arup • Includes: • Updated assessment of train noise and track for noise source • Train paths based on Phase 1 and Phase 2 operations including operating speed 330 kph in 90% cases • Terrain model based on existing surfaces • Uses alignment based on MWCC Scheme Design to provide updated impacts • Determines updated requirements for mitigation • Mitigation proposals to be submitted to local planning authority through Schedule 17 • Including preparation of a Noise Demonstration Report to satisfy LPA 1MC07-CEK-IN-PRE-CS07_CL13-000001 Noise Mitigation – our obligations 1MC07-CEK-IN-PRE-CS07_CL13-000001 Noise Mitigation Obligations Environmental HS2 Information Specific Minimum Paper E20 – Control Undertakings and Requirements of Airborne Assurances (EMR) Noise… Overriding obligation to To reduce airborne noise May be required subject to mitigate any additional from the operational circumstances significant adverse effect railway as far as is … e.g. specific height reasonably practicable barriers 1MC07-CEK-IN-PRE-CS07_CL13-000001 Information Paper E20 Control of Airborne Noise • The nominated undertaker will take all reasonable steps to design and construct altered roads, and to design, construct,