research

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

Highway and LRT nodes have similar impacts on home values

By Bill Holloway Both highway exits and light rail transit stations appear to generate similar impacts on single-family home values. Using a spatial hedonic model to analyze single-family home values in Phoenix, Arizona, researchers found that proximity to a transport node (LRT station or highway

Hand-held cell phone bans miss the mark

By Bill Holloway According to recently published research, California’s ban on driving while using hand-held cellphones, implemented in 2008, appears to have had no impact on crash rates. Researchers, focusing on the six months before and after the ban was implemented, were unable to identify

Which transportation sustainability rating system works for your state?

By Robbie Webber The practice of developing highway projects sustainably by paying attention to the societal, environmental, and economic impact of projects has become increasingly common. States are using transportation sustainability rating systems (TSRSs) to assess the impacts of their

Children killed in DUI crashes likely to be in car with drunk driver

By Robbie Webber Motor vehicle crashes are a leading cause of death for children under 15 years of age, and drunk driving is involved in about one-fifth of these crashes. However, contrary to common perception, the child is likely to be riding in the same car as the drunk driver, and the rate of