MUTCD
Streetsblog California
Talking Headways Podcast: Bike Guides to Build Your City
Bill Schultheiss on AASHTO and NACTO bike lane design guides, the importance of history, political will and the stress of being an expert witness in court.
May 29, 2025
Feds, Advocates Talk About What’s In The New MUTCD (And What Isn’t)!
The new MUTCD isn't the revolutionary rethink advocates were asking for, but it does offer transportation officials more flexibility to design roads safely. The only question is whether they'll take it — or stick to the status quo.
December 20, 2023
New Bill Would Finally Rewrite the ‘Notorious’ MUTCD for Vulnerable Road User Safety
U.S. transportation engineers tend to treat the Manual of Uniform Traffic Control Devices like a bible. A new bill would encourage them to treat it more like a recipe book — and sub out deadly design ingredients when they aren't safe for vulnerable road users.
November 15, 2023
The MUTCD Update is Late — And While We Wait, People Are Dying
Despite a binding requirement to release an updated version more than a month ago, the Federal Highway Administration missed the deadline to release a new edition of America's federal street design guidelines.
corrigan Salerno
July 5, 2023
Counter-Intuitive Department: Sometimes, Traffic Controls Make Streets More Dangerous
Since the very first center line appeared on a Michigan road in 1911, many have questioned whether the design norms that govern U.S. roads really make them "safe", or simply less dangerous than the anarchic days of early motordom — though still nowhere near as safe as the days before the car dominated American roads at all. Here's why.
January 19, 2023
When Will America’s Street Design Bible Enter the 21st Century?
Last year, the number of people killed on U.S. roads surged back above 40,000. But you don't see much urgency on the part of the transportation engineering establishment to change a failing street design paradigm. So we checked in with one of the engineers in charge of America's street design bible.
March 15, 2017
