Collisions

Wildlife crossing bridge over roadway in Banff, Canada with snow-topped mountains in background

Wildlife Crossings as Key Infrastructure

Animal-vehicle collisions cause billions in property damage, hundreds of human deaths, and dramatic losses in animal populations every year. Monitoring migration and building for animals can make roads safer for everyone.

October 6, 2022 - Governing

Chicago Commute

Planning for Congestion Relief

The third and final installment of Planetizen's examination of the role of the planning profession in both perpetuating and solving traffic congestion.

May 12, 2022 - James Brasuell

Congestion versus mobility

How Planning Fails to Solve Congestion

Solutions for congestion are never as simple and easy as armchair planners and engineers would like you to believe—especially those who suggest that congestion can be solved by forever building more roadway capacity.

April 20, 2022 - James Brasuell

Congestion

Planning and the Complicated Causes and Effects of Congestion

What do planners know about congestion, and what can they do about it? Explanations and solutions are less obvious than they seem (part one of a three-part series).

April 13, 2022 - James Brasuell

Biker and driver

Improving Media Coverage of Road Collisions

A new set of guidelines will help the media improve the accuracy of traffic safety coverage.

October 2, 2020 - The Guardian

City Bird

The Biggest Hazard to Birds in New York City—Buildings

In New York City, tens of thousands of birds die each year after colliding with buildings. Policy and design measures can make the city much safer for its feathered inhabitants.

October 7, 2019 - The City

Geno's Steaks

Streets in Dense Urban Areas Safer Than Suburban 'Stroads,' Study Finds

A new study considers urban form, roadway characteristics, traffic collisions, and fatalities in the Philadelphia region, to show that the densest parts of regions are the safest places to drive and walk.

May 22, 2019 - PlanPhilly

Speed Limit

Vancouver Considering Lowering Speed Limits for Pedestrian Safety

Vancouver wants to rein in traffic speeds as collisions take a rising toll on drivers and pedestrians in the city.

April 30, 2019 - The Star Vancouver

Multi-Modalism

For Tiny Vehicles, Safety Comes With Numbers

Motorists tend to look out for hazards they expect. If tiny vehicles proliferate, including electric scooters, greater safety will follow.

October 11, 2018 - Streetsblog USA

Microsoft, City of Bellevue Developing Tech to Predict—and Prevent—Bike Crashes

If it's successful, a public-private partnership between Microsoft and the city of Bellevue, Washington could produce Minority Report-style predicative capabilities to prevent bike crashes.

November 16, 2015 - GeekWire

Collisions Trouble Atlanta Streetcar Testing

Some would argue that introducing streetcars to auto-oriented streets is a recipe for collisions. Drivers in Atlanta are already having trouble mixing with streetcars, before the system even launches.

November 25, 2014 - Atlanta Business Chronicle

Studying the Moments Before Collisions to Help Prevent Them

An unprecedented study is tracking the behavior of drivers in the U.S. using cameras and sensors to observe how they interact with their vehicle and the road. Researchers hope to better understand the causes for collisions, and how to prevent them.

September 24, 2013 - Governing

App To Warn You When You Are About To Be Hit By A Car

Carmakers are developing technologies to alert drivers and pedestrians if they are about to collide.

September 6, 2013 - The Car Connection

Making a Safer Multi-Use Path

Pathways that are used by cyclists and pedestrians have shown a high rate of collisions. Some say the regulations for these multi-use paths should be updated.

November 12, 2010 - Grist

Rail Safety Improvements Years Away

Head-on train collisions can be avoided by simply keeping one train per track. There's a plan to make that happen, but it's years from implementation.

October 9, 2009 - Miller-McCune

News from HUD User

HUD's Office of Policy Development and Research

Call for Speakers

Mpact Transit + Community

New Updates on PD&R Edge

HUD's Office of Policy Development and Research

Top Books

An annual review of books related to planning.

Top Websites

The best of the Internet—since 2002.

Top Apps

Planning apps for a brave new world.

Top Schools

The definitive ranking of graduate planning programs.

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.