research

BYU researchers predict high crash sites to help UDOT target improvements

By Robbie Webber Researchers at Brigham Young University have developed one of the most advanced traffic safety models in the country, and Utah DOT will be using it to target allocation of scarce funds to the most crucial locations to save lives and prevent serious injuries. Civil engineering

SSTI researcher: ‘Parking requirements transform cities, cost millions in tax revenues’

By Chris McCahill Colleagues from the University of Connecticut and I recently completed a pair of studies examining the long-term, citywide impacts of parking facilities and minimum parking requirements. Our research shows how parking minimums can physically transform urban centers, stifle

Notice any suspicious people while you were driving today?

By Bill Holloway A recent study by researchers at the University of Surrey, England, finds that people traveling through urban areas by car have more extreme positive and negative perceptions of their surroundings and people in the area than those traveling by foot, with the views of transit

CDOT study tests methodology for systematic bicycle traffic measurement

By Robbie Webber As bicycling and walking have become more popular methods of transportation, cities and states are searching for better techniques for estimating traffic from these non-motorized modes. Both on individual corridors and throughout transportation systems, traffic volumes are

Motor vehicle pollution a major contributor to American deaths

By Chris McCahill Last year, following six years of decline, the number of traffic fatalities in the U.S. rose 5 percent—to 34,000—continuing the position of motor vehicle crashes as one of the leading causes of death, particularly among young people. It is the top cause of death for ages 5

Development of Tools for Assessing Wider Economic Benefits of Transportation (TRB, 2013)

The Strategic Highway Research Program II funded the development of tools to help assess the wider economic benefits of transportation projects. The goal of this project was to develop a bridge between (A) the case study form of analysis provided by the Transportation Project Impact Case Studies

Factors affecting the decline in VMT: A new SSTI report

By Chris McCahill SSTI has released a paper outlining factors contributing to the recent decline in American driving and the implications for transportation planning. As previously reported, per capita VMT has decreased steadily for the past eight years, resulting in a slight decrease in overall

VMT Inflection Point: Factors Affecting 21st Century Travel (SSTI, 2013)

For many decades, transportation planning has assumed continued increases in automobile use. Now, in a major reversal, the average American is driving considerably less. According to the most recent FHWA travel-volume report for July, total vehicle miles traveled showed no increase compared to

Ready. Transit. Go: Lining up development to meet current and future transportation demands

By Mary Ebeling Minneapolis-St. Paul has big plans. The Twin Cities have set a goal to develop 14 transit ways by 2030 in an effort to transform the future transportation infrastructure and development patterns there. These transit ways will need to carry a high number of riders to remain

Has Motorization in the U.S. Peaked? Part 2: Use of Light-Duty Vehicles (Michael Sivak, 2013)

This study is an examination of trends from 1984-2011 in distances driven by light-duty vehicles in the U.S. This is in contrast to several other recent studies that analyzed distances driven by all vehicles including medium and heavy trucks, buses, and motorcycles). The report presents trends