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STREETSCAPE GUIDANCE

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HOME<br />

INTRODUCTION<br />

PART A<br />

A vision for London’s streets<br />

PART B<br />

From strategy to delivery<br />

PART C<br />

New measures for new challenges<br />

PART D<br />

Balancing priorities<br />

PART F<br />

Appendix<br />

PART E<br />

Physical design and materials<br />

SECTION 6<br />

Introduction<br />

SECTION 7<br />

High quality footways<br />

SECTION 8<br />

Carriageways<br />

SECTION 9<br />

Crossings<br />

SECTION 10<br />

Kerbside activity<br />

SECTION 11<br />

Footway amenities<br />

SECTION 12<br />

Safety and functionality<br />

SECTION 13<br />

Street environment<br />

SECTION 14<br />

Transport interchanges<br />

Streetscape Guidance<br />

[Part E – Physical design and materials] Street environment 292<br />

Attenuation and infiltration<br />

systems London, UK<br />

Replicating natural systems to provide easily<br />

maintained, aesthetically pleasing drainage<br />

capacity<br />

Key functions<br />

Opportunity<br />

New and existing developments disrupt natural<br />

drainage of rainfall. While conventional drainage<br />

systems reduce flood risk, there are other smaller<br />

landscape features that can briefly attenuate<br />

or infiltrate rainfall and add visual amenity and<br />

ecosystem benefits.<br />

Benefits<br />

Attenuation and infiltration systems can reduce<br />

flood risk while also improving the ecology and<br />

visual amenity of the site.<br />

Implementation<br />

Following consultation with urban designers and<br />

ecologists, the raised kerbs installed in Potters<br />

Fields Park, London Bridge, were designed with<br />

slots between them to direct water off the kerb<br />

and footway into the adjacent gardens. This<br />

infiltrates a small amount of the flow and provides<br />

the gardens with a plentiful water supply.<br />

Applying in London<br />

Successful attenuation and infiltration<br />

systems require early consultation with<br />

several professionals to ensure structural,<br />

operational and maintenance issues are<br />

considered. These systems work well<br />

in areas of high footfall and where an<br />

opportunity to beautify the landscape<br />

exists.<br />

Additional information<br />

British Standards:<br />

BS EN 124: Gully tops and manhole tops for<br />

vehicular and pedestrian areas<br />

BS 8301: Drainage<br />

BS 7903: Guide to selection and use of gully tops<br />

and manhole covers for installation within the<br />

highway<br />

Department for Transport:<br />

Design Manual for Roads and Bridges: Volume 4<br />

– Geotechnics and Drainage<br />

Department for Environment Food & Rural<br />

Affairs:<br />

National Standards for sustainable drainage<br />

systems, 2011<br />

National Joint Utilities Group:<br />

NJUG Guidelines on the Positioning and Colour<br />

Coding of Underground Utilities’ Apparatus,<br />

2007<br />

Construction Industry Research and<br />

Information Association (CIRIA):<br />

The SuDS Manual (C697)<br />

WRc Group (Water Research Centre):<br />

Sewers for Adoption (7th edition), 2013

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