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Book 2 | Planning and Management - WSUD

Book 2 | Planning and Management - WSUD

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Water Sensitive Urban Design<br />

Figure 17 - Bollards or kerbs with regular breaks allow distributed flow to the <strong>WSUD</strong> element while protecting these systems from traffic<br />

••<br />

Street-scale <strong>WSUD</strong> elements should be<br />

part of an overall <strong>WSUD</strong> strategy for a<br />

development (Figure 16).<br />

••<br />

It is not necessary to provide <strong>WSUD</strong><br />

elements on all streets, however<br />

streetscape <strong>WSUD</strong> elements may form<br />

an important part of a <strong>WSUD</strong> strategy<br />

for a development.<br />

••<br />

Parking areas can be located adjacent<br />

to <strong>WSUD</strong> elements, but should be<br />

designed to prevent vehicles damaging<br />

these systems. Bollards or kerbs with<br />

regular breaks are required to allow<br />

distributed flow to the <strong>WSUD</strong> element<br />

(Figure 17).<br />

••<br />

Parking areas may be interspersed<br />

between <strong>WSUD</strong> elements, such as<br />

parking bays between raingardens.<br />

An example of a road cross-section is<br />

shown in Figure 18.<br />

Different types of streets will lead to<br />

different opportunities for <strong>WSUD</strong>. Model<br />

street types described in L<strong>and</strong>com’s Street<br />

Design Guidelines are listed in Table 4<br />

along with potential <strong>WSUD</strong> opportunities.<br />

CARRIAGEWAY<br />

BIO RETENTION<br />

SLOTTED KERB<br />

3% 4%<br />

DIRECT<br />

STORMWATER<br />

FLOW<br />

Figure 18 - Road design with stormwater feeding into a bioretention system for treatment.<br />

32 <strong>Book</strong> 2 | planning <strong>and</strong> management

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