For more information on research highlighted in the Oregon Transportation Summit program, please follow this link:
OTREC’s broad research program addresses complex transportation problems by drawing on multiple disciplines, including engineering, planning, economics and design, at our four member universities and beyond. The combined expertise allows OTREC to explore ways to move people and goods sustainably. Research projects also address broader transportation initiatives designed to investigate and build research capacity. Check out the featured projects below or use the search box at right to browse research or search for a specific project.
Freight Vehicle-Miles Traveled in Urban Areas
Commercial vehicles account for nearly 10 percent of vehicle-miles traveled in urban areas, with many of the trips they take starting at distribution centers or warehouses. In this report, “Practical Approximations to Quantify the Impact of Time Windows and Delivery Sizes on Freight VMT in Urban Areas,” Miguel Andres Figliozzi of Portland State University examined how to approximate the length of these trips and to estimate how the window of time and size of delivery affect the miles traveled.
Read more: Practical Approximations to Quantify the Impact of Time Windows and Delivery Sizes on Freight VMT in Urban Areas
Who pays more with vehicle mileage fees?
Decreasing gas tax revenue means Oregon needs another way to pay for its roadway system. What would the effects be on poor and rural populations if the state switched to a tax based on miles driven? Oregon State University’s B. Starr McMullen and Lei Zhang found that, as the price of gasoline increases, the new tax system would cost the poorest people less than a tax pegged to the cost of gas.
Rural drivers would pay slightly less under a vehicle-mile tax than under the gasoline tax, while urban drivers would pay slightly more. This research suggests that a vehicle-mile tax wouldn’t keep people from buying more fuel-efficient vehicles.
Read more: Socio-economic Effect of Vehicle Mileage Fees, Phase 2