The Mayor's Ambient Noise Strategy - Greater London Authority

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The Mayor’s Ambient Noise Strategy Mayor of London 151 4D noise on rivers and canals 4D.1 The Mayor’s London Plan seeks policy and action which takes account of the unique character of the ‘Blue Ribbon Network’ - the semi-natural and man-made system of rivers, canals and water spaces which plays such an essential role in sustaining London. Chapter 4C of the London Plan seeks to protect and enhance the Blue Ribbon Network, supporting a complex mix of demands. Principles include making more use of it, contributing to economic success, accessibility, inclusivity and safety while ensuring that it is both a healthy and a calm series of places. Figure 21 The Blue Ribbon Network 4D.2 In relation to all his strategies, the Mayor has a duty under the Greater London Authority Act 1999 to have regard to ‘the desirability of promoting and encouraging the use of the River Thames safely, in particular for the provision of passenger transport services and for the transportation of freight’ (section 41(5)(d)). The Greater London Act 1999, in requiring preparation of a ‘London Ambient Noise Strategy’ states that ‘ambient noise’ includes ‘noise related to... water transport’ (section 370(3)(a)). This is taken here to refer to all of London’s navigable waterways, including the River Thames, other river navigations, and canals. With river tributaries, lakes and docks, these are vital parts of London’s structure, heritage, environment and urban quality. Their widely varying character includes contrasting soundscapes. Water is acoustically hard, and sound propagates readily over its surface. Higher wind speeds across open water can scatter sound, or carry it further downwind. 4D.3 It is important that the benefits for overall noise minimisation achievable by diverting movement from noisier modes are secured while respecting the varied soundscapes of London’s navigable waterways, including in
152 Mayor of London The Mayor’s Ambient Noise Strategy terms of freight access to and from wharves. The Government announced in November 2000 that it would sponsor an inland waterways freight study group 1 . National policy on inland waterways is set out in ‘Waterways for Tomorrow’ 2 . The Mayor’s Transport Strategy seeks examination of measures to make better use of the River Thames and other navigable waterways for freight as well as passengers. policy 57 The Mayor will, and Boroughs, the Port of London Authority, British Waterways, the Environment Agency and others with responsibilities for London’s Blue Ribbon Network should, seek to minimise the adverse impacts of noise on, from, within or in the vicinity of water spaces, while promoting sustainable uses, including for passenger services, freight, leisure, and as eco-systems. 4D.4 Issues involved in noise management on London’s navigable waterways include powering of craft; tourist and party boats, piers and moorings; wharves, boatyards and waterside planning; and water and waterside tranquillity. The scale and nature of issues and solutions can vary widely, particularly between the Thames and other waterways. Competing objectives, such as leisure and recreation, heritage, freight transport, and regeneration, need to be balanced. Powering of craft 4D.5 Many of the Port of London Authority’s freight facilities are now outside the administrative boundary of London. However, the River Thames still has an important role in carrying freight to and from the city. Three million people travel on the Thames each year. The propulsion systems of modern passenger and leisure craft have generally become quieter. Large marine engines generate noise at low frequencies which can be difficult fully to contain. Modern hull designs are generally more efficient than in the past, offering less drag, and creating less wash. The four miles per hour speed limit on London’s canals means wash is rarely an issue there. Electric charging points have been provided by British Waterways, the Environment Agency and others to encourage the use of electric boats. River craft may be early users of new, quiet technologies such as fuel cells. Small fast craft, such as jet skis, mini-hovercraft and leisure powerboats, can be disproportionately noisy. Noise management criteria will need to vary for different water spaces. policy 58 The Mayor will encourage the development and use of quiet propulsion and power systems for vessels using London’s rivers and canals. This will include promoting fuel cells for water craft through the London Hydrogen Partnership, and wider availability of electric boats and charging points.
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