Using alternatives to the standard 15 metre radius cul-de-sac can further reduce the impervious area required to service each dwelling. Ways to reduce the impervious areas of cul-de-sacs include a landscaped or bioretention centre island, T-shaped turnaround, or by using a loop road instead.
Using alternatives to the standard 15 metre radius cul-de-sac can further reduce the impervious area required to service each dwelling. Ways to reduce the impervious areas of cul-de-sacs include a landscaped or [[bioretention]] centre island, T-shaped turnaround, or by using a loop road instead.
===Eliminate unnecessary sidewalks and driveways===
===Eliminate unnecessary sidewalks and driveways===