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Line 57: − + − === Structural Requirements or Site Constraints === − [[LID Site Criteria and Constraints]] − For additional resources on LID performance studies, please click on [http://www.sustainabletechnologies.ca/wp/home/urban-runoff-green-infrastructure/low-impact-development/ LID Performance Reports]+ + + Line 73:
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== Screen Potential LID Options ==
== Screen Potential LID Options ==
A number of factors need to be considered when screening the suitability of a given location within a development site for application of stormwater BMPs. Table 3.4.1
A number of factors need to be considered when screening the suitability of a given location within a development site for application of stormwater BMPs. [[LID Site Criteria and Constraints]]
summarizes site constraints associated with some general types of structural LID practices for stormwater management that should be considered. Further
summarizes site constraints associated with some general types of structural LID practices for stormwater management that should be considered. Further
information regarding constraints to the design of various end-of-pipe BMPs can be found in the Ontario Ministry of the Environment Stormwater Management Planning and
information regarding constraints to the design of various end-of-pipe BMPs can be found in the Ontario Ministry of the Environment Stormwater Management Planning and
Design Manual (2003). The use of LID BMPs should be considered first to meet the design criteria before the use of end-of-pipe BMPs.
Design Manual (2003). The use of LID BMPs should be considered first to meet the design criteria before the use of end-of-pipe BMPs. Other considerations for screening potential LID options is detailed below.
=== Performance Requirements ===
=== Performance Requirements ===
Resources on LID performance studies are widely available. Performance of LID within Ontario can be found in
[http://www.sustainabletechnologies.ca/wp/home/urban-runoff-green-infrastructure/low-impact-development/ LID Performance Reports]
=== Operations and Maintenance Requirements ===
=== Operations and Maintenance Requirements ===
[http://www.sustainabletechnologies.ca/wp/home/urban-runoff-green-infrastructure/low-impact-development/low-impact-development-life-cycle-costs/ LID Life Cycle Costing Tool]
[http://www.sustainabletechnologies.ca/wp/home/urban-runoff-green-infrastructure/low-impact-development/low-impact-development-life-cycle-costs/ LID Life Cycle Costing Tool]
== Select LIDs (Conceptual Design) ==
== Selection of Suite of LIDs ==
In order to assess if the selected suite of BMPs effectively meet the design criteria either computer models or simple spreadsheet models should be used. Model selection
In order to assess if the selected suite of BMPs effectively meet the design criteria either computer models or simple spreadsheet models should be used. Model selection
Once the suite of best management practices have been selected and the models have been run, a comparison of the results and the environmental design criteria can be made. An iterative approach, which involves adjusting the
Once the suite of best management practices have been selected and the models have been run, a comparison of the results and the environmental design criteria can be made. An iterative approach, which involves adjusting the
size or adding/deleting BMPs should be used until the environmental design criteria are met. The project can then proceed to the detailed design stage.
size or adding/deleting BMPs should be used until the environmental design criteria are met. The [http://www.sustainabletechnologies.ca/wp/low-impact-development-treatment-train-tool/ LID Treatment Train Tool] can help with
adjusting the size of the features to see if criteria are met. Once met, the project can then proceed to the detailed design stage.