Portland State University

For the first time, researchers have shown that installing light rail on an existing travel corridor not only gets people out of their cars, but reduces congestion and air pollution.

In the study, planners at the University of Utah measured impacts of a new light rail line in Salt Lake City (University Line) on an existing major thoroughfare (400/500 South). Their analysis showed that traffic near the University has fallen to levels not seen since the 1980s, even as the number of students, faculty and staff at the university has increased, and the commercial district along the corridor has expanded.

"This is the first study to document important effects of light rail transit on traffic volumes,” said Reid Ewing, professor of city and metropolitan planning at the University of Utah and lead author on the study. “Since the University TRAX line opened, there has been increased development in the 400/500 South travel corridor, yet traffic on the street has actually declined. Our calculations show that without the University TRAX line, there would be at least 7,300 more cars per day on 400/500 South, and possibly as many as 21,700 additional cars. The line avoids gridlock, as well as saves an additional 13 tons of toxic air pollutants. This is important knowledge for shaping future transportation policies.”

Andrew Gruber, executive director of the...

Susan Petheram, a Ph.D. candidate in the Metropolitan Planning, Policy, & Design program at the University of Utah, has recently been awarded a NITC dissertation fellowship.

NITC fellowships are awarded to fund research on surface transportation topics that fit under the NITC theme of safe, healthy, and sustainable transportation choices to foster livable communities. Petheram's research focuses on the integration of transportation and land use, and on building healthy communities through transit access.

Her dissertation research involves evaluating some of the effects of the light rail system in Salt Lake County. Scarcely more than a decade old, the TRAX light rail system has three lines in service as of 2013, and some of the transportation researchers at the University of Utah are taking advantage of this living laboratory to explore the effects of a light rail system upon the neighborhoods and suburbs that it serves. 

Calvin Tribby, for example, another NITC fellow from the University of Utah, is observing the new transit opportunities' effect on public health. Petheram's research focuses on a different angle: the light rail's effect on property values.

In particular, she is interested in...

The 2013 NITC dissertation fellowships have been awarded, and Gail Meakins, of the University of Utah, has been selected for a $7,500 NITC fellowship to support her dissertation research.

Meakins's Ph.D. program of study combines her two fields of interest by studying the connection between the built environment and public health.

A former athletic director, Meakins made a major career change in 2008 to go back to school and study Urban Planning.

"My lifelong passion for, and interest in, physical activity and sport began at a very early age," she said. Always a competitive swimmer and runner, she became intrigued with city design over time.

After earning her Bachelor's and Master's of Arts in Physical Education from the University of California, Berkeley in the mid-1970's, Meakins worked for over 20 years in physical education and health at the middle school, high school, and collegiate level.

"Throughout the years I have had the opportunity to travel extensively, and developed a strong interest in both urban design and architecture," Meakins said. In the course of her travels, she couldn't help but notice wide differences between neighborhoods, in terms of the availability of active travel modes.

Her...