Todd Litman's blog

More Critique of Demographia's International Housing Affordability Survey

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Submitted by Todd Litman on January 22, 2015 - 5:00am

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

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Submitted by Todd Litman on January 7, 2015 - 10:00am

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?

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Submitted by Todd Litman on November 21, 2014 - 11:00am

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

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Submitted by Todd Litman on November 13, 2014 - 9:00am

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!

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Submitted by Todd Litman on October 14, 2014 - 12:00pm

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

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Submitted by Todd Litman on September 29, 2014 - 6:00am

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'

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Submitted by Todd Litman on September 2, 2014 - 6:00am

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

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Submitted by Todd Litman on August 15, 2014 - 11:00am

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

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Submitted by Todd Litman on July 14, 2014 - 5:00am

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.

Is Traffic Speed Compliance A Congestion Cost?

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Submitted by Todd Litman on June 11, 2014 - 3:49pm

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.

Rising Homelessness, Erroneous Data: Rethinking Utah's 'Housing First' Policy

MTBA's Capital Spending Plan Subject to Agency-Wide Review

Effects of Federal Shutdown Only Beginning to Show at Local and State Transportation Agencies

Banner Year for Electric Vehicle Sales

Let's Hope Trump Considers Infrastructure a National Security Issue Too

Urban Planning Trends to Watch in 2019

Yes, There Are Still Carless Poor

Birds of Passage: Quantifying Jacobs's Gloom

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Todd Litman's blog

More Critique of Demographia's International Housing Affordability Survey

New Transit Safety Narrative

Land for Vehicles or People?

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

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

Reform Transport Engineering: Expand Beyond Just Roadway Level of Service (LOS) Ratings

Introducing the Litman 'Chauffeuring Burden Index'

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

More Great Research Quantifying Smart Growth Benefits

Is Traffic Speed Compliance A Congestion Cost?

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