travel time

Travel time peaked in the 1990s, new research shows

By Chris McCahill Americans spent more than 10 hours per week traveling in the early 1990s—the highest amount in two decades—but that number has since dropped below 1975 levels to less than 8.5 hours, according to a new study published in Transportation Research Part A. The resulting travel

Equitable access to opportunity: The growing distance between people and jobs

By Mary Ebeling Recent studies show that travel times and costs for all commuters are increasing, particularly in the past five years. A recent Citi Premier commuter index documents commuting costs an average of $2,600 per year, or around $12 a day. These costs are regressive in nature, creating

Researchers apply travel time reliability measures in modeling and project evaluation

By Chris McCahill Transportation planners and traffic analysts who typically measure road performance in terms of delay are beginning to incorporate measures of travel time reliability, which describe the hourly and daily variation in travel times due to congestion and transit delay. These

Beyond mobility—prioritizing accessibility in urban transportation

By Mary Ebeling The San Francisco Transit Accessibility Map is a new online tool showing how much of the city is accessible by transit or walking within a selected travel time. Designed for the San Francisco Metropolitan Transit Authority primarily for agency use, the mapping tool is getting a

Do transportation agencies value time more than travelers do?

By Bill Holloway Tolled traffic lanes on otherwise unpriced facilities offer a unique opportunity to understand how much people are willing to pay for a faster commute and to truth test the assumptions used by transportation agencies to judge the benefits and costs of potential projects. As noted

Population growth in San Francisco creates challenges for transit

By Chris Spahr A recent long-term transit strategy proposal by San Francisco Municipal Transportation Agency (Muni) Director Ed Reiskin aims to cut travel times on some bus and light rail routes in half.  However, this is far from the first time an idea like this has been proposed and many of

Travel Time Reliability 2030: Innovations and Strategies for Today and Tomorrow (TRB, 2013)

Projects from the second Strategic Highway Research Program (SHRP 2) are exploring innovations and possible trends that can shape the future of travel time reliability. This brief provides an overview of two of those projects. Evaluating Alternative Operations Strategies to Improve Travel Time

Study highlights importance of travel time as a metric

By Eric Sundquist As commute times increase, married women work fewer hours or even drop out of the workforce according to a forthcoming article in the Journal of Urban Economics. The finding, summarized for a general audience recently in Atlantic Cities, helps explain differences in women’s

Time Pollution (John Whitelegg, 1993)

In his 1993 essay, originally published in Resurgence & Ecologist, the author tries to explain why the more people try to save time, the less time they seem to have. This is true of transportation as well, and he uses travel time as an example of this phenomenon. Regardless of what mode

Measuring Urban Transportation Performance: A Critique of Mobility Measures and a Synthesis (CEOs for Cities, 2010)

While peak hour travel is a perennial headache for many Americans — peak hour travel times average 200 hours a year in large metropolitan areas — some cities have managed to achieve shorter travel times and actually reduce the peak hour travel times. The key is that some metropolitan