Civil Engineering PE

Answer: B - Conservation design is a stormwater design practice used to minimize the generation of runoff by preserving open space. The goal of conservation design is to reduce the amount of impervious surface, which increase runoff volumes, so that the predevelopment hydrology of a site is more closely replicated.

Examples of conservation design methods include the following:

• Reduced pavement widths for streets and sidewalks
• Shared driveways for multiple housing units
• Reduced structure setbacks
• Cluster development