FHWA to Engineers: Go Ahead and Use City-Friendly Street Designs

The heavyweights of American transportation engineering continue to warm up to design guides that prioritize walking, biking, and transit on city streets. On Friday, the Federal Highway Administration made clear that it endorses the National Association of City Transportation Officials' Urban Street Design Guide, which features street treatments like protected bike lanes that you won't find in the old engineering "bibles."

FHWA "supports the use of the Urban Street Design Guide in conjunction with" standard engineering manuals such as AASHTO's Green Book and the Manual on Uniform Traffic Control Devices (MUTCD), the agency said in statement released on Friday. FHWA had already endorsed NACTO's bikeway design guide last August. The new statement extends its approval to the more comprehensive Urban Street Design Guide, which also covers measures to improve pedestrian space and transit operations.

Federal approval of what were until recently considered "experimental" street designs means that more engineers and planners will feel comfortable implementing them without fear of liability.