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| + | [[File:Community planning.jpg|thumb|A neighbourhood built around and in harmony with existing natural heritage]] |
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| Increases in the quantity, rate, and frequency of runoff can be linked to two root causes: | | Increases in the quantity, rate, and frequency of runoff can be linked to two root causes: |
| #the conversion of undeveloped or agricultural land cover to urban uses, and | | #the conversion of undeveloped or agricultural land cover to urban uses, and |
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| LID site design strategies can be grouped into four themes: | | LID site design strategies can be grouped into four themes: |
− | #Preserving important [[hydrologic features and functions]]; | + | #Preserving [[existing hydrologic features and functions]]; |
| #[[Siting and layout of development]]; | | #[[Siting and layout of development]]; |
| #[[Reducing impervious area]]; and | | #[[Reducing impervious area]]; and |
− | #[[Using natural drainage systems. | + | #Using [[natural drainage]] systems. |
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| The strategies need to be considered together as they all overlap and relate to each other. For example, preserving a natural channel will impact the layout of the site, and the layout of the site determines the extent of impervious area and optimal locations of structural BMPs. | | The strategies need to be considered together as they all overlap and relate to each other. For example, preserving a natural channel will impact the layout of the site, and the layout of the site determines the extent of impervious area and optimal locations of structural BMPs. |
| | | |
| + | ==Additional resources== |
| + | ===Better Site Design Handbook, Centre for Watershed Protection (1998) & Urban Design Compendium, English Partnerships (2007)=== |
| + | <pdf width="600">File:Better-Site-Design-Handbook.pdf</pdf> |
| + | <pdf width="600">File:UrbanDesignCompendium.pdf</pdf> |
| + | |
| + | ---- |
| [[category:planning]] | | [[category:planning]] |