research

Researchers explore links between speed and safety

By Chris McCahill As states experiment with increasing and lowering speed limits on rural highways, questions still remain as to what effects those changes might have on safety. At this year’s annual meeting of the Transportation Research Board, researchers trying to answer some of those

Accessibility moves out of the lab and into practice

By Eric Sundquist Accessibility, long considered a more robust measure of transportation system success than simple mobility, is moving out of research and into practice, according to panelists on an SSTI webinar. Accessibility measures the ease by which travelers can reach desired destinations,

Walkable communities could improve cognitive ability among older adults

By Chris Spahr Numerous studies have supported the linkages between transportation planning and public health.  A new study out of the University of Kansas specifically addresses the cognitive benefits of walkable neighborhoods to older adults. Amber Watts, an Assistant Professor of Clinical

Better infrastructure boosts cycling rates

By Bill Holloway New research affirms the link between bicycle-friendly infrastructure and biking rates among nearby residents. The researchers analyzed a decade of bicycle commuting data in Minneapolis to determine the impact of the Greenway—a 5.5-mile grade-separated cross-town bicycle and

State DOTs are beginning to embrace protected bike lanes

By Chris McCahill Protected bicycle lanes, which physically separate cyclists from automobile traffic using objects such as bollards or parked cars, are becoming popular among municipal transportation agencies, bicycle advocates, and less experienced cyclists. According to the Green Lane Project,

Living near a major roadway raises risk of cardiac death in women

By Robbie Webber A paper published in Circulation, the journal of the American Heart Association, outlines the dangers for women’s health of living near major roadways. Researchers following a group of nurses since 1976 found that those living within 50 meters of major roadways­—defined as

New study links community characteristics to bicycle ridership

By Bill Hollway A new study published in the Journal of Transportation Geography further confirms the impacts of land use and the built environment on bicycle ridership and explores the elasticity of bicycle ridership in relation to some of these variables. Researchers analyzed household travel

Report ranks metropolitan areas by transit accessibility

By Chris McCahill Researchers at the University of Minnesota released a new report ranking major metropolitan areas in terms of their accessibility to jobs by transit. The new Access Across America report complements the group’s 2013 release, which measured job accessibility by automobile, and

New research confirms the benefits of the Safe Routes to School program

By Bill Holloway Recently published research in the Journal of the American Planning Association provides strong support for the Safe Routes to School program’s ability to increase rates of walking and biking among students. The authors analyzed changes in the number of students walking and

Recent study supports the case for transit oriented development

By Chris Spahr The total effect of transit on VMT may be much greater than it appears on the surface. Using a transit multiplier, Reid Ewing and Shima Hamidi estimated that the Portland Westside Max light rail transit (LRT) extension indirectly reduces VMT by three vehicle miles for every one