Todd Litman's blog

Todd Litman is the executive director of the Victoria Transport Policy Institute.
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How Not to Evaluate Public Transit Risks

Randal O'Toole claims that light rail transit is more dangerous than bus or automobile travel, but he fails to account for exposure or overall safety benefits. This is a good example of bad statistical analysis.

More Critique of Demographia's International Housing Affordability Survey

The Demographia International Housing Affordability Survey contains significant biases and errors. It is important that anybody working with the survey's results be aware of these problems.

New Transit Safety Narrative

Conventional traffic safety programs emphasize ways that individuals can help reduce their risk, but new research indicates that safety depends largely on community planning decisions that affect how and how much people drive.

Land for Vehicles or People?

Automobile-oriented planning requires that cities devote signifiant amounts of space to roads and parking—under many conditions each vehicle requires more land than is devoted to housing per capita.

Climate Change Targets? No Problem! We Have Win-Win Solutions

Ambitious new emission reduction targets can be met with strategies that also help achieve other economic, social, and environmental objectives.

How Not To Measure Traffic Congestion—Hold the Hyperbole, Please!

The new INRIX congestion costing report is another good example of bad analysis. We just want accurate information; hold the hyperbole, please.

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.

Introducing the Litman 'Chauffeuring Burden Index'

A significant portion of vehicle travel consists of chauffeuring: additional travel to transport a non-driver. The new Chauffeuring Burden Index calculates its direct and indirect costs. Why do these costs receive such little attention in planning?

What is a 'House'? Critiquing the Demographia International Housing Affordability Survey

Demographia's International Housing Affordability Surveys are widely used to compare cities and evaluate urban development policies, but there are good reasons to question their analysis methods, starting with their definition of "house."

More Great Research Quantifying Smart Growth Benefits

New research can help planners understand how specific decisions will affect transport activity (how and how much people travel), and their ultimate economic, social, and environmental impacts.

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