TRB’s
National Cooperative Highway Research Program (NCHRP) Report 802: Volume
Reduction of Highway Runoff in Urban Areas: Guidance Manual explores practices
for the reduction of stormwater volumes in urban highway environments. The
report outlines a five-step process for the identification, evaluation, and
design of solutions for runoff volume reduction based on site-specific
conditions. The manual also includes a set of volume reduction approach fact
sheets and a user guide for the Volume Performance Tool.