Risk Analysis

Aerial view of intersection in New York City with yellow cabs and zebra crosswalks.

Planners’ Complicity in Excessive Traffic Deaths

Professor Wes Marshall’s provocatively-titled new book, "Killed by a Traffic Engineer," has stimulated fierce debates. Are his criticisms justified? Let’s examine the degree that traffic engineers contribute to avoidable traffic deaths.

June 13, 2024 - Todd Litman

Greenwich Village

Planning for Crime Reduction

Few issues are more emotional, and therefore vulnerable to bad analysis, than urban crime risk. Solid research indicates that more compact and mixed development tends to increase neighborhood security. Jane Jacobs was right!

December 7, 2018 - Todd Litman

Freeway houses

A New Traffic Safety Paradigm

Despite numerous traffic safety programs, traffic death rates have not declined in a decade and recently started to increase. We can do better! A new paradigm identifies additional safety strategies that reduce both crash rates and risk exposure.

December 18, 2017 - Todd Litman

Autonomous Vehicle

The Many Problems With Autonomous Vehicles

Optimists predict that autonomous vehicles will be a transportation panacea, but there are good reasons to be skeptical. They may create as many problems as they solve.

October 23, 2017 - Todd Litman

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.