Todd Litman is the executive director of the Victoria Transport Policy Institute.
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.
Thursday, January 22, 2015 - 5:00am PST
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.
Wednesday, January 7, 2015 - 10:00am PST
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.
Friday, November 21, 2014 - 11:00am PST
Ambitious new emission reduction targets can be met with strategies that also help achieve other economic, social, and environmental objectives.
Thursday, November 13, 2014 - 9:00am PST
The new INRIX congestion costing report is another good example of bad analysis. We just want accurate information; hold the hyperbole, please.
Tuesday, October 14, 2014 - 12:00pm PDT
Transportation engineers currently evaluate urban transport system performance using roadway level of service (LOS) ratings. Here are six good reasons to change.
Monday, September 29, 2014 - 6:00am PDT
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?
Tuesday, September 2, 2014 - 6:00am PDT
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."
Friday, August 15, 2014 - 11:00am PDT
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.
Monday, July 14, 2014 - 5:00am PDT
Conventional evaluation often exaggerates congestion costs by using baseline travel speeds which exceed speed limits. This assumes that traffic speed compliance is a congestion cost that justifies major infrastructure investments to alleviate.
Wednesday, June 11, 2014 - 3:49pm PDT