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

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

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

Expanding Transmobilities: An Art-Informed Methodology For Genderdiverse Travel Behavior

Principal Investigator: Nicholas Puczkowskyj

There is a significant gendered travel behavior research gap in the transportation literature. A plethora of transportation literature identifying and contrasting cisgender disparities exists, but more inclusive approaches to genderdiverse identities ... Read More

Exploring the Use of Crowdsourced Data Sources for Pedestrian Count Estimations

Principal Investigator: Sirisha Kothuri

Co-Investigators: Nathan McNeil , Kate Hyun , Stephen Mattingly

Counts provide the foundation for measuring nonmotorized travel along a link or a network and are also useful for monitoring trends, planning new infrastructure, and for conducting safety, health, and economic analyses. For safety analysis, they are ... Read More

Subcontract: NCHRP 15-73 Design Options to Reduce Turning Motor Vehicle – Bicycle Conflicts at Controlled Intersections

Principal Investigator: Christopher Monsere

Co-Investigators: Sirisha Kothuri , Nathan McNeil

BACKGROUND One of the most common locations for fatal motor vehicle-bicyclist crashes is at intersections, which inherently have a large number of turning conflicts. Reducing these conflicts is a key objective in improving intersection safety acr ... Read More

Subcontract: NCHRP 15-74 Safety Evaluation of On-Street Bicycle Facility Design Features

Principal Investigator: Christopher Monsere

Co-Investigator: Sirisha Kothuri

https://apps.trb.org/cmsfeed/TRBNetProjectDisplay.asp?ProjectID=4763 BACKGROUND While non-separated on-street bicycle facilities have been used in the United States for many years, separated on-street bicycle facilities are becoming increasing ... Read More

2022 Evaluation of the Highway Construction Workforce Development Program

Principal Investigator: Maura Kelly

The Oregon Department of Transportation (ODOT) and Oregon Bureau of Labor and Industries (BOLI) have partnered in a statewide effort—the Highway Construction Workforce Development Program—to recruit, train, and employ a diverse workforce for high ... Read More

Do Travel Costs Matter For Persons With Lower Incomes? Using Psychological and Social Equity Perspectives to Evaluate the Effects of a Low-Income Transit Fare Program on Low-Income Riders

Principal Investigator: Liu-Qin Yang

Co-Investigators: Liming Wang , Aaron Golub

In recent years, there has been a nationwide push to move from using cars to using other modes of transportation. The benefits of active transportation (that is, walking, biking, and even using public transit) are widely known. Not only can these mod ... Read More

Incorporating Bicycle Activity and Vehicle Travel Reduction from Bicycle Infrastructure into Strategic Planning Tools

Principal Investigator: Joe Broach

Co-Investigator: Kristina Currans

Planners and modelers at all levels of government have been grappling with the problem of how to better represent bicycling when modeling and forecasting future scenarios. Planners want to know how and to what extent infrastructure projects can incre ... Read More

Launching the Wasatch Transportation Academy

Principal Investigator: Nathan McNeil

Co-Investigator: Keith Bartholomew

How can community members become more engaged in transportation decision making? Individuals and groups can learn to effect powerful change, but success requires some familiarity with how civic processes work. Community Transportation Academies, o ... Read More