The Mayor's Ambient Noise Strategy - Greater London Authority

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The Mayor’s Ambient Noise Strategy Mayor of London 111 management, without prohibitive penalties, as unforeseen noise or vibration problems emerge, as changing technologies become available, or where emerging problems can be addressed through modest operating changes. As with the Underground, improved understanding of the costs and benefits is needed for priority setting. It is important to maintain fair treatment of rail in relation to other transport modes, and fair treatment for London in relation to other areas. Clear allocation of responsibilities is particularly important on a multi-user railway system. policy 28 policy 29 policy 30 The Mayor will expect the Strategic Rail Authority and the rail industry to develop cost-effective plans to minimise noise and vibration through improvements in the design, operation, monitoring and maintenance of transport infrastructure, while seeking improved National Rail services in pursuit of London’s transport, regeneration and sustainable development needs. The Mayor will expect the Government, Strategic Rail Authority and the rail industry to ensure that network licences incorporate actively enforced arrangements for management and monitoring which enable noise to be minimised through best engineering practice, particularly related to track condition, in pursuit of the Secretary of State’s Directions and Guidance to the SRA in respect of sustainable development and effects on the environment. Elements include: ■ Making available information from asset registers or databases, and maintaining good asset condition monitoring systems. ■ Ensuring that franchises, contracts, and other arrangements on National Rail make provision, without disproportionate penalties, for flexible operational, engineering and other responses to noise and vibration issues as these are identified. The Mayor will expect the Strategic Rail Authority and the rail industry to assess, on a scheme-by-scheme basis, the implications of service improvements which could have significant impacts on noise and vibration, and incorporate cost-effective measures to mitigate such impacts. Construction and maintenance works 4B.30 Noise from construction and maintenance works is excluded from the definition of ‘ambient noise’ in the GLA Act 1999. London boroughs remain responsible under the Control of Pollution Act (CoPA), 1974, for agreeing appropriate measures to protect noise-sensitive occupants in the vicinity of relevant construction works. Night maintenance as well as construction work can be particularly necessary on railways because of pressure on capacity during the day. Bringing London’s rail facilities up to necessary standards, and expanding capacity, will, however, have
112 Mayor of London The Mayor’s Ambient Noise Strategy environmental benefits. It is nevertheless important that the best available techniques and operating practices are employed to minimise the risks of disturbance. Construction noise issues should be addressed at programme and project planning stage, and measures agreed with local authorities and others. Local authorities and scheme promoters are increasingly seeking to harmonise Codes of Construction Practice. Responsible authorities and contractors should apply good practice. This implies prior discussions with the local authority and, in most cases, application for prior consent under Section 61 of CoPA. It implies adherence to BS 5228, some sections of which are Codes of Practice under CoPA. Good practice in implementing major construction and maintenance works with significant noise implications is likely to include advance letters to neighbouring occupants, 24 hour helplines where necessary, rapid response to complaints, and regular publication of information on the types of complaints. policy 31 The Mayor will urge the Strategic Rail Authority and the rail industry, and will expect Transport for London, to secure good practice in minimising noise and vibration where railway construction and maintenance are carried out. Noise mapping of railways in London 4B.31 The UK Government published its consultation paper on a National Ambient Noise Strategy in December 2001, which included mapping the main sources and areas of noise by 2004. It is important that noise mapping should be used not just to quantify noise exposure in general terms, but to play a part in optimising some of the key actions affecting noise generation. Local authorities have typically found it difficult to obtain accurate information of the type required for noise mapping from the railway industry. Giving specific parts of the railway industry responsibility for producing source noise mapping to defined protocols, and making this available to local authorities and others, is likely to be more cost-effective than many local authorities mapping ‘their’ parts of a much wider network. It should also assist the railway industry in moving towards integrating noise management in system management. A specific concern over the current UK railway noise prediction model is that it does not cover the effects of railhead roughness, including corrugation. This has been recognised by Government and rail industry advisors. Research is being carried out to enable such effects to be included in modelling for mapping purposes. policy 32 The Mayor will urge the Strategic Rail Authority and the rail industry, and will expectTransport for London, to work with the Government, its consultants, London boroughs and other stakeholders to ensure that
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