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TREC research addresses complex transportation problems by drawing on multiple disciplines, including engineering, planning, economics and design, from across the Portland State University campus. Use the search box at right to search for a specific project.

Research Highlights

Taxing Shared Micromobility: Assessing The Global Landscape Of Fees And Taxes And Their Implications For Cities, Riders, And Operators

John MacArthur
Shared micromobility (including shared electric scooters and bikes provided by private companies) is one of the newest transportation options that has come to cities in the last several decades. A new report explores the different ways cities charge shared micromobility companies to operate, and how these funds are used. In the newly released report, John MacArthur of Portland State University, Kevin Fang of Sonoma State University and Calvin Thigpen of Lime examine data from 120 cities in… Read More

Data and Methodological Issues in Assessing Multimodal Transportation Impacts for Urban Development

Kristina Currans
In 1976, the Institute of Transportation Engineers (ITE) compiled their first Handbook of guidelines and methods for evaluating development-level transportation impacts, specifically vehicular impacts (Institute of Transportation Engineers 1976). Decades later, these methods— essentially the same as when they were originally conceived—are used ubiquitously across the US and Canada. Only recently, with the guidelines in its third edition of the ITE’s Trip Generation Handbook (Institute of… Read More

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