Research Projects | Transportation Research and Education Center

Effects of Neighborhood Greenways on Active Transportation Behavior and Perceptions in Portland, Oregon

Principal Investigator: Jennifer Dill

Co-Investigators: Nathan McNeil , Katsuya Tanaka

Streets play an important part in the daily lives of most people, serving as vital connections to employment, recreation, socialization and much more. Streets (including sidewalks) also serve as important places in and of themselves, including as loc ... Read More

Framework and Methodology for Risk-Based Bridge and Tunnel Asset Management

Principal Investigator: David Yang

Co-Investigators: Arash Khosravifar , Diane Moug , Avinash Unnikrishnan

Bridges and tunnels need to address the daily transportation needs of the traveling public and provide capacity and emergency service before/during/after extreme events. States may achieve the best possible transportation network performance through ... Read More

Understanding Human-centered AI through Data Integration and Analytics

Principal Investigator: David Yang

Human Centered Artificial Intelligence (HCAI) is an approach to developing and implementing Artificial Intelligence technology applications that focuses on the needs of individuals and communities who utilize these applications. This project intends ... Read More

Division Street Transit Project: FX2 Shared Bicycle & Pedestrian Platform Evaluation

Principal Investigator: Nathan McNeil

FX2-Division is TriMet's high-capacity bus service along Division Street in Southeast Portland. The primary objective of this project is to assess conflicts between users of the shared bicycle and transit stations along this corridor, with a particul ... Read More

Working Towards Operationalizing Equity into the Research Process

Principal Investigator: Aaron Golub

While our researchers are experts in various aspects of transportation research, not all researchers have the tools to address equity topics in their research or conduct their work following good equity practices, ranging from data collection and ana ... Read More

Statewide Active Transportation Count Database (SATDB-003)

Principal Investigator: Sirisha Kothuri

Knowing how many people use walking and bicycling infrastructure is crucial for transportation planning. Active transportation projects can help cities and states achieve multiple climate- and public-health-related targets, and a new project launchin ... Read More

FORTH Community Carsharing: Ensuring Equitable Access to Electric Transportation

Principal Investigator: John MacArthur

The Affordable Mobility Platform (AMP) is a nationwide community carsharing program providing electric vehicles to affordable housing locations. Forth Mobility (https://forthmobility.org/) is working with local partners including utilities and co ... Read More

Guide for Addressing Encampments on State Transportation Rights-of-Way (NCHRP 20-129)

Principal Investigator: Marisa Zapata

Co-Investigators: John MacArthur , Hau Hagedorn

The number of people experiencing homelessness in the United States has increased in recent years; state transportation rights-of-way (ROWs) are often some of the most accessible areas to set up temporary encampments. This growing trend of encampment ... Read More

E-bike Lending Libraries Synthesis

Principal Investigator: John MacArthur

Despite the practical and sustainable mobility benefits of e-bikes, personal ownership and maintenance are considered barriers to adoption (Fitch et al., 2022). Lending e-bikes may address some of the challenges of shared micromobility programs, such ... Read More

Improving Accuracy and Precision of Bicycle Volume Estimates Using Advanced Machine Learning Approaches

Principal Investigator: Sirisha Kothuri

Co-Investigator: Banafsheh Rekabdar

This study seeks to improve modeling methods for estimating bicycle volumes. Better estimates of bicycle activity on local road and trail networks can help agencies prioritize projects, plan and design new bicycle infrastructure, and conduct safety a ... Read More

Risk-Based Methodology for Structural Evaluation of Bridge-Sized Culverts

Principal Investigator: David Yang

Co-Investigators: Kevin White , Timothy Wood

Many long-span culverts are subject to loads from heavy trucks, and thus need to be evaluated for their load carrying capacities to estimate safety margins. However, the current manual on bridge evaluation provides limited guidance for bridge-sized c ... Read More

Improving Guidance for Automated Speed Enforcement

Principal Investigator: Miguel Andres Figliozzi

PROBLEM SUMMARY Fatal and severe injury crashes are on the rise in Oregon with one of the prominent factors being excessive speeding. As many cities and communities expand walking and cycling infrastructure there has been an increase in pedestrian ... Read More