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] Crossings 156 Crossing category Uncontrolled crossing types Crossing type Stages Uncontrolled 1 or 2 Traffic island 2 Dropped kerb 1 Side road entry 1 treatment Courtesy crossing 1 Informal island 1 or 2 Uncontrolled pedestrian crossing design standards Preferred minimum central refuge width Absolute minimum central refuge width Dropped kerbs Tactile paving 2,000mm 1,500mm Flush with carriageway 1:20 optimum gradient to 1:12 maximum Provided at least every 100 metres on residential roads Contrasting grey/two rows deep/no tactile tail The provision of tactile paving and a dropped kerb on each side of the road helps to delineate the crossing point. Central refuges may be provided at uncontrolled crossings to facilitate crossing in two stages and protect pedestrians from traffic. Uncontrolled crossings are appropriate where there are moderate to low vehicle flows. Where traffic capacity at a junction does not allow for a green pedestrian crossing phase in the signal timings, an uncontrolled crossing point may be provided. These arrangements are not recommended for locations where there are moderate to high pedestrian flows with evidence of a crossing desire line. Figure 155: Uncontrolled crossings may or may not be combined with an island
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] Crossings 157 Side road entry treatments Entry treatments should be used to emphasise pedestrian priority and as traffic calming devices. Generally they are placed across a minor road at, or within a short distance of a junction with a major road. Side road entry treatments are generally only used in urban areas and may be implemented in isolation or as part of a series of traffic calming features. They should not be used adjacent to high speed road environments as vehicles turning Figure 156: A side road entry treatment at Windrush Square, Brixton on to the ramp and raised table are required to move at low speeds. A side road entry may be considered for an intersecting road which is of a lower movement order than the adjoining road. Entry treatments aim to achieve a combination of objectives relating to safety and user priority, through a series of physical interventions: Objective Denote a change in street character where a side road intersects a major road type and signals to drivers that they are entering or leaving a different traffic condition and should act accordingly To emphasise pedestrian movements Reduce vehicle speeds on the approach Reduce vehicle speeds through the turn Improve junction visibility Additional site specific objectives Identify the start of a 20mph zone or traffic calmed area Corresponding design intervention Use materials to suggest greater pedestrian presence and priority on the side road Raise carriageway level to footway level Reduce the carriageway crossing distance Use materials to suggest greater pedestrian presence and priority Provide a change in surface before the junction Include vertical deflection Tighten corner geometries Provide footway build-outs to deter parking near the junction Corresponding design intervention Use a combination of measures including signage, carriageway surface materials and build-outs
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STREETSCAPE GUIDANCE Third Edition
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