STREETSCAPE GUIDANCE

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HOME INTRODUCTION PART A A vision for London’s streets PART B From strategy to delivery PART C New measures for new challenges PART D Balancing priorities PART F Appendix PART E Physical design and materials SECTION 6 Introduction SECTION 7 High quality footways SECTION 8 Carriageways SECTION 9 Crossings SECTION 10 Kerbside activity SECTION 11 Footway amenities SECTION 12 Safety and functionality SECTION 13 Street environment SECTION 14 Transport interchanges Streetscape Guidance [Part E – Physical design and materials] Street environment 292 Attenuation and infiltration systems London, UK Replicating natural systems to provide easily maintained, aesthetically pleasing drainage capacity Key functions Opportunity New and existing developments disrupt natural drainage of rainfall. While conventional drainage systems reduce flood risk, there are other smaller landscape features that can briefly attenuate or infiltrate rainfall and add visual amenity and ecosystem benefits. Benefits Attenuation and infiltration systems can reduce flood risk while also improving the ecology and visual amenity of the site. Implementation Following consultation with urban designers and ecologists, the raised kerbs installed in Potters Fields Park, London Bridge, were designed with slots between them to direct water off the kerb and footway into the adjacent gardens. This infiltrates a small amount of the flow and provides the gardens with a plentiful water supply. Applying in London Successful attenuation and infiltration systems require early consultation with several professionals to ensure structural, operational and maintenance issues are considered. These systems work well in areas of high footfall and where an opportunity to beautify the landscape exists. Additional information British Standards: BS EN 124: Gully tops and manhole tops for vehicular and pedestrian areas BS 8301: Drainage BS 7903: Guide to selection and use of gully tops and manhole covers for installation within the highway Department for Transport: Design Manual for Roads and Bridges: Volume 4 – Geotechnics and Drainage Department for Environment Food & Rural Affairs: National Standards for sustainable drainage systems, 2011 National Joint Utilities Group: NJUG Guidelines on the Positioning and Colour Coding of Underground Utilities’ Apparatus, 2007 Construction Industry Research and Information Association (CIRIA): The SuDS Manual (C697) WRc Group (Water Research Centre): Sewers for Adoption (7th edition), 2013
HOME INTRODUCTION PART A A vision for London’s streets PART B From strategy to delivery PART C New measures for new challenges PART D Balancing priorities PART F Appendix PART E Physical design and materials SECTION 6 Introduction SECTION 7 High quality footways SECTION 8 Carriageways SECTION 9 Crossings SECTION 10 Kerbside activity SECTION 11 Footway amenities SECTION 12 Safety and functionality SECTION 13 Street environment SECTION 14 Transport interchanges Streetscape Guidance 13.4 Lighting the way Figure 286: LED lighting recently installed [Part E – Physical design and materials] Street environment 293 Vision and purpose To enhance night-time use, economy and enjoyment, and to provide safe passage across the Capital for all road users, we choose to provide street lighting across the TLRN. Street lighting provides many benefits to the network, including: • Reducing night-time accidents and personal injuries • Reducing crime and fear of crime Figure 285: Highway lighting column illuminating footway and carriageway (Image courtesy of CU Phosco Lighting) • Promoting personal physical fitness and sustainability by encouraging walking and cycling after dark • Facilitating social inclusion by permitting the use of streets and amenities after dark • Supporting the 24-hour leisure economy promoting economic development • Providing safe access to educational facilities supporting lifelong learning • Assisting emergency services to identify locations and so reduce response times • Permitting the effective use of CCTV during the hours of darkness • Maintaining and/or improving the quality of life and personal wellbeing • Providing an aesthetically pleasing appearance during the day and night However, such advantages need to be considered with other benefits. These include their environmental impact, sustainability, the reduction in greenhouse gas emissions, the more efficient use of energy, and the provision of Best Value. Such initiatives are supported by drivers including the Climate Change Act 2008 (to reduce greenhouse gas emissions), the Carbon Reduction Commitment (CRC) Energy Efficiency Scheme (to make more efficient use of energy), and the Mayor’s Transport Strategy and Climate Change Mitigation and Energy Strategy. We therefore embrace innovation and the latest technological advances to provide these outcomes and these include the implementation of a lighting Central Management System (CMS) and use of the latest light source technology.
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STREETSCAPE GUIDANCE

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