Diverging Diamond Interchange Puts Drivers on the Left Side of the Road
The unusual design improves traffic flow and reduces the danger of head-on collisions as cars enter the I-5 freeway.
Researchers Analyze Pandemic Transportation Patterns for Planning Lessons
An article details the efforts of Madison-area researchers to glean lessons from the transportation patterns of March and April to inform better planning for the future.
Plan for Expanded Road Inconsistent With Denver's Values
The idea of road improvement catering only to cars and congestion didn't pass muster on Quebec Street in Denver. A new plan for the heavily used, but narrow, corridor will prioritize pedestrians, safety, and transit.
'Cars Are Death Machines'
Not one, not two, but three articles in the past week paint dire portraits of the world that cars have created.
The Billion-Year-Old Curb Bulbout
Bloor Street didn't land on this billion-year old rock; the rock landed on Bloor Street.
An Investigation of the Nation's Increasing Number of Pedestrian Fatalities
PBS New Hour takes a deep dive into the climbing number of pedestrian deaths in the United States—now at their highest level in almost three decades.
'Complete Streets' Bill Enjoys Broad Support in Baltimore
The city of Baltimore is ready to make a concerted effort in planning for multiple modes of transportation and all users of the public realm.
San Francisco Has a New 'Vision Zero' Fire Truck
The size of fire trucks frustrates advocates on many sides of the public safety debate. The San Francisco Fire Department sought a solution.
Opinion: How Fire Chiefs and Traffic Engineers Make Places Less Safe
Fire standards and street design manuals, meant to protect people, actually make them less safe by damaging walkability and encouraging driving—a classic example of silo thinking.
Case Study of an Unsafe Street
Street Road, a thoroughfare cutting through the Philadelphia suburb of Bensalem, is a public safety disaster. PennDOT is investing in safety along the road, but locals say much more needs to be done.
The Design Decision Behind Cleveland's Backwards Buffered Bike Lanes
The curious case of Cleveland's new "buffered" bike lanes. The question: Why are the buffers placed between the bike lane and the curb?
First Roundabout Comes to New York City
Roundabouts, not to be confused with traffic circles, are becoming popular throughout the United States. The Bronx will get the first one in NYC. The insurance industry and FHWA consider them far safer than traffic lights and stop signs.
'Bike Bill' to Pave the Way for 21st Century Bike Infrastructure in Connecticut
Joseph Cutrufo reports on a bill under consideration in the Connecticut State Legislature that would clear the way for the construction of bike infrastructure that matches the state's complete streets ambitions.
Reform Transport Engineering: Expand Beyond Just Roadway Level of Service (LOS) Ratings
Transportation engineers currently evaluate urban transport system performance using roadway level of service (LOS) ratings. Here are six good reasons to change.
In the Inevitable World of the Self-Driving Car, How Will An Intersection Work?
Yes, the subject may seem a little dry at first, but have a look at the intersection modeling shown in Emily Badger's recent article to see what continuously flowing traffic looks like at an intersection. A brave new world indeed.
Reversible Lanes Puzzle Drivers
The 10-lane Kennedy Expressway in Chicago is forced to manage significantly more traffic than it was designed to handle. Traffic planners have installed a flexible lane that can increase the flow in one direction, but Chicagoans are baffled by them.
A Traffic Engineer Questions His Profession
Charles Marohn is a traffic engineer. Despite years of training and millenia of precedents, Marohn now feels that the common practice of traffic engineering is creating bad and even unsafe streets.
City of Laramie, Wyoming
Colorado Department of Local Affairs
Lassen County Planning and Building Services
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.