A video explainer of the notorious traffic law that explains why some cities have to raise speed limits to enforce traffic safety.
To understand the scale of the challenge that must be overcome to achieve Vision Zero safety goals to eliminate traffic fatalities and to break the strangle hold cars have on U.S. cities, look no further than the 85th Percentile Rule, as neatly explained in the Grist video shown above.
For more background, see past Planetizen coverage of the 85th Percentile Rule.
FULL STORY: A 1930s city planning rule has drivers setting their own speed limits
NACTO Recommends Default Safety Setting for Speed Limits
A step toward an overhaul of the way speed is managed on city streets around the country.
After Lowering Speed Limits for Pedestrian Safety, Town Writes 1,000% More Speeding Tickets
Police are enforcing speed limits in the name of public safety in North Haledon, New jersey. Drivers are being urged to respect the speed limit.
How the Law Enshrines Car Dependence
Land use regulations provide exhibit A in this indictment of the American legal system's support for a murderous and destructive dependence on automobiles for transportation.
The Slow Death of Ride Sharing
From the beginning, TNCs like Lyft and Uber touted shared rides as their key product. Now, Lyft is ending the practice.
In Most U.S. Cities, Archaic Laws Limit Roommate Living
Critics argue laws preventing unrelated adults from living in the same home fail to understand the modern American household.
Ten Signs of a Resurgent Downtown
In GeekWire, Chuck Wolfe continues his exploration of a holistic and practical approach to post-pandemic urban center recovery, anchored in local context and community-driven initiatives that promote livability, safety, and sustainability.
California Moves to Limit Autonomous Trucks
A bill passed by the State Assembly and moving on to the Senate would require autonomous semi trucks to have a trained human operator in the vehicle.
Minnesota Budget Includes Significant Transit Investments
After a contentious debate, the state legislature passed a budget that changes how transportation projects are funded and supports increased transit service in the state.
Proposed Land Value Tax Plan in Detroit
Detroit Mayor Mike Duggan proposes hiking property taxes for vacant land and buildings while lowering the rate for occupied homes and businesses in a split tax plan he contends will resolve many of Detroit's blight and high property tax woes.
San Francisco Municipal Transportation Agency
City of Orange
City of Charlotte - Charlotte Area Transit
HUD's Office of Policy Development and Research
HUD's Office of Policy Development and Research
HUD's Office of Policy Development and Research
Montrose County
Wichita-Sedgwick County Metropolitan Area Planning Department
City of Lomita
Urban Design for Planners 1: Software Tools
This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.
Planning for Universal Design
Learn the tools for implementing Universal Design in planning regulations.
