Page 112 - Newham SuDS DESIGN & EVALUATION GUIDE
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Detailed Design  9.8  Amenity                                                                                          9.8.2 Accessibility                                                                                          Detailed Design

           Confirming integrated SuDS design
                                                                                                                             All parts of the SuDS landscape should be
                                                                                                                             accessible to both everyday users and site
           Amenity is one of the four pillars of SuDS
                                                                                                                             managers.
           design and perhaps open to the most
                                                                                                                             Full accessibility requires safety by design for
           interpretation and judgement.
                                                                                                                             every element of design including:
           Amenity focuses on the usefulness and
           aesthetic elements of SuDS design
           associated with features ‘at or near the
                                                                                                                                 changes of level
           surface’, and considers both multi-                                                                                  ■   ■  open water
           functionality and visual quality.                                                                                    ■  design detailing eg. headwalls, inlets and
                                                                                                                                 outlets
           The amenity value of SuDS will have been

           considered at both Concept and Outline                                                                               ■  clear visibility of the system
           design stages but some finer aspects of value                                                                        ■  physical accessibility to all with an
           will be enhanced by detail design at stage.
                                                                                                                                 understanding of the limitations of level
                                                                                                                                                                                      Hopwood Park MSA M42. Wooden terrace and
           An evaluation of the successful integration of                                                                        changes and open water.                             balastrade with wet bench and planted aquatic
           amenity uses the design criteria set out in                                                                                                                                              bench protection to open water.
           Concept Design.
                                                                         Informal play, through integrated design.

                                                                                                                             9.8.3 Multifunctionality
  107                                                                                                                        Many parts of the SuDS landscape can be                Other functionality can include:                      108
           9.8.1 Legibility                                                                                                  useful in ways not associated with managing


           Understanding how the SuDS design                         ■  How does runoff travel from where it has             rainfall.                                                 ■  play opportunity throughout the SuDS
                                                                                                                                                                                       landscape
           functions is important both to everyday users             been collected onwards through ‘source                  Permeable pavement is an example of full
           of the SuDS environment and those who look                control’ components to each part of the                 multi-functionality in that the surface is                ■  informal leisure like jogging, picnics,
           after it.                                                 site. This is conveyance?                               always available for managing rainfall and                dog-walking etc


           An exercise in following each management                  ■  Where is runoff stored and cleaned along             also allows vehicle access, parking and                   ■  community activities such as gardening
           train from source to outfall and imagining                the management train in ‘site controls’                 pedestrian use.                                           etc
           how the scheme presents itself to the visitor             recognising that these functions may                    Reasonably level green space can be used for              ■  wildlife habitat
           should highlight any problems with legibility.            occur within permeable construction?                    sports and other social activity most of the
           Considerations will include:                                                                                                                                                ■  education.
                                                                     ■  Where are flow controls are located?                 time but not when inundated. Everyday
              ■  How is rainfall collected?                                                                                  rainfall (1-2 year return period events) can be        Usability of swales and basins can be
                                                                     ■  Are overflow and exceedance routes clear
                                                                                                                             designed to be managed elsewhere in the                enhanced by under-draining into filter
              ■  What ‘source control’ techniques have               and understandable?                                     landscape.                                             trenches below the ground to keep grass
               been used and how they can be accessed                ■  Is the outfall obvious, accessible and                                                                      surfaces dry most of the time. For instance,
               and maintained?
                                                                     understandable?                                                                                                within housing where grass surfaces are
                                                                                                                                                                                    valuable for play.


           London Borough of Newham SuDS D & E Guide                                                     © 2018 McCloy Consulting & Robert Bray Associates  London Borough of Newham SuDS D & E Guide                                                     © 2018 McCloy Consulting & Robert Bray Associates
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