Difference between revisions of "Better site design"

From LID SWM Planning and Design Guide
Jump to navigation Jump to search
 
(One intermediate revision by the same user not shown)
Line 2: Line 2:
  
 
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 [[Urbanization|urban uses]], and  
 
#the application of storm sewer systems.  
 
#the application of storm sewer systems.  
  
Line 15: Line 15:
 
#Using [[natural drainage]] systems.  
 
#Using [[natural drainage]] systems.  
  
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. See page [[Urbanization]] to understand how appropriate site design can improve stormwater management through the adoption of LID BMPs when preserving natural features is not possible.
  
 
Take a look at the downloadable Site Design Strategies Factsheet below for a .pdf overview of LID Best Management Practices:
 
Take a look at the downloadable Site Design Strategies Factsheet below for a .pdf overview of LID Best Management Practices:
Line 26: Line 26:
 
Click below to review the following Site Design resources:
 
Click below to review the following Site Design resources:
  
[[File:Bettersitedesign.png|307 px|link=https://wiki.sustainabletechnologies.ca/images/d/dc/Better-Site-Design-Handbook.pdf]]
+
 
[[File:Urbansitedesign.png|300 px|link=https://wiki.sustainabletechnologies.ca/images/4/4b/UrbanDesignCompendium.pdf]]
+
<pdf width="500" height="700">File:Better-Site-Design-Handbook.pdf</pdf> <pdf width="500" height="700">File:2 UrbanDesignCompendium.pdf</pdf>
  
 
----
 
----
 
[[category:planning]]
 
[[category:planning]]

Latest revision as of 18:10, 6 October 2022

A neighbourhood built around and in harmony with existing natural heritage

Increases in the quantity, rate, and frequency of runoff can be linked to two root causes:

  1. the conversion of undeveloped or agricultural land cover to urban uses, and
  2. the application of storm sewer systems.

The goal of LID site design strategies is to minimize these two sources of hydrologic impacts. Avoiding downstream impacts through non-structural, innovative site design methods is more economical, operationally efficient, and aesthetically pleasing than concentrating all stormwater management efforts on treating and controlling runoff downstream.

Site designer should exhaust all opportunities for non-structural methods to prevent runoff from being generated before determining how to mitigate the land cover change and storm sewer impacts through structural LID practices and detention ponds.

LID site design strategies can be grouped into four themes:

  1. Preserving existing hydrologic features and functions;
  2. Siting and layout of development;
  3. Reducing impervious area; and
  4. Using natural drainage systems.

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. See page Urbanization to understand how appropriate site design can improve stormwater management through the adoption of LID BMPs when preserving natural features is not possible.

Take a look at the downloadable Site Design Strategies Factsheet below for a .pdf overview of LID Best Management Practices:

Site design.png

Additional resources[edit]

Better Site Design Handbook, Centre for Watershed Protection (1998) & Urban Design Compendium, English Partnerships (2007)[edit]

Click below to review the following Site Design resources:


load PDF load PDF