Oct 29, 2012

This fall, the Friday transportation seminar series at Portland State University has focused on data collection and how information is used to make transportation investments. The Oct. 26 seminar, with the University of Minnesota’s Greg Lindsey, covered tracking and modeling travel behavior.

Engineers and planners alike have relied on traffic counts for their traffic models, but data behind bike and pedestrian travel has been fuzzy. Now, researchers such as Lindsey are offering new methods for conducting bike and pedestrian counts on trails and multiuse paths.

With little guidance from the Federal Highway Administration, Lindsey said, most of the efforts in creating best practices have bubbled up from communities like the Twin Cities, chosen as Nonmotorized Transportation Pilot Cities. Lindsey and his researchers monitored six trails in Minneapolis, using inductive loops and infrared beams.

To address calibration problems and offer validity to their field numbers, Lindsey also sent students into the field to verify counts. The technology allowed for finer-grained detail, especially over a 24-hour period. OTREC Director Jennifer Dill noted, “Too much in the past we’ve lumped “bike and peds” together and your work and analysis is demonstrating that they truly are different modes, with different behaviors.”

Lindsey stressed the importance of conducting this type of research, and measuring our “bicycle miles traveled” and “pedestrian miles traveled” in...

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Apr 03, 2009

Dr. Levinson is an Associate Professor in the Department of Civil Engineering at the University of Minnesota and Director of the Networks, Economics and Urban Systems (NEXUS) research group. On Friday, April 3, 2009, Dr. Levinson presented his research on ìTransport, Land Use and Valueî for Portland State Universityís Transportation Seminar Series. Using Minneapolis and London as examples, Levinson discussed the feedback loops that enable value to be generated by development and transportation investments. Following the seminar, members of PSUís transportation student group, STEP, several faculty members as well as partners from Metro, TriMet and ODOT joined Dr. Levinson for lunch. The appearance was made possible by OTRECís Visiting Scholars Program. For more information on Levinson’s research, visit the NEXUS home page