Research Projects | Transportation Research and Education Center

Understanding Factors Affecting Arterial Reliability Performance Metrics

Principal Investigator: Avinash Unnikrishnan

Co-Investigators: Sirisha Kothuri , Jason Anderson

Researchers from Portland State University (PSU) partnered with Washington County, Oregon to offer data-driven strategies in prioritizing funding for travel time reliability improvements on their urban arterials. The vast majority of existing researc ... Read More

Understanding Economic and Business Impacts of Street Improvements for Bicycle and Pedestrian Mobility - A Multi-City Multi-Approach Exploration [Phase 2]

Principal Investigator: Jenny Liu

This research project explores the economic impacts of bicycle and pedestrian street improvements in the United States using multiple data sources and analytical approaches. Building on studies in New York City and San Francisco, researchers examined ... Read More

Defining and Measuring Equitable Access to Washington Park in Portland, Oregon

Principal Investigator: Lisa Patterson

Co-Investigators: Marisa Zapata , Joe Broach

Photo by Brink Communications Explore Washington Park (EWP) is a 501c3 non-profit that serves as the Transportation Management Association for Washington Park. At 410 acres, Washington Park receives over 3 million visitors each year and is home to ... Read More

Social-Transportation Analytic Toolbox (STAT) for Transit Networks

Principal Investigator: Xiaoyue Cathy Liu

Co-Investigators: Ran Wei , Aaron Golub , Liming Wang

The new Social-Transportation Analytic Toolbox (STAT) for Transit Networks, developed by NITC researchers in a multi-university collaboration, is a dynamic platform that combines Twitter, general transit feed specification (GTFS), and census transpor ... Read More

The E-Bike Potential: How E-Bikes Can Improve Sustainable Transportation

Principal Investigator: John MacArthur

Co-Investigator: Christopher Cherry

The electric bicycle (e-bike) is a recently introduced mode of travel that is rapidly gaining in popularity throughout the United States. The e-bike can offer a cheaper alternative to car travel (Popovich et al. 2014) and can provide users with an ad ... Read More

Bicycle Planning GIS Tool

Principal Investigator: Joe Broach

Although currently only about one percent of US trips are done by bicycle, there is significant geographic variation. Differences across communities, along with much higher cycling rates observed in other places around the world, indicates large pote ... Read More

Contextual Guidance at Intersections for Protected Bicycle Lanes

Principal Investigator: Christopher Monsere

Co-Investigator: Nathan McNeil

Protected, or separated, bike lanes have become increasingly common around the United States. Studies have consistently found that people prefer bike facilities that are separated from traffic, such as off-street paths and protected bike lanes, with ... Read More

Addressing Changing Demographics in Environmental Justice Analysis, State of Practice

Principal Investigator: Aaron Golub

Co-Investigator: Nathan McNeil

This report documents how metropolitan planning organizations (MPO), State departments of transportation (DOT), and other transportation agencies are adapting Environmental Justice (EJ) analysis techniques to understand transportation impacts in comm ... Read More

Life-Space Mobility and Aging in Place

Principal Investigator: Ivis Garcia

Co-Investigator: Alan DeLaTorre

Research on older adults frequently explores the notion of “aging in place”—providing older adults the opportunity to continue to live in their own homes and communities. However one’s ability to stay or leave, particularly in old age, often ... Read More

A Decentralized Network Consensus Control Approach for Urban Traffic Signal Optimization

Principal Investigator: Gerardo Lafferriere

The main contribution of this project is the simulation platform that allows for comparison between the proposed consensus approach and a standard traffic signal control protocol. The main features of the mathematical model and the simulation tools a ... Read More

How Technology Can Affect the Demand for Bicycle Transportation: The State of Technology and Projected Applications of Connected Bicycles

Principal Investigator: John MacArthur

The term “connected vehicle (CV)” refers to vehicles equipped with devices, which enable wireless communication between internal and external entities, supporting vehicle-to-vehicle (V2V), vehicle-to-infrastructure (V2I) and vehicle-to-everything ... Read More

Evaluating Effects of Earthquake-Induced Liquefaction on Bridge Foundations and Transportation Network Using CDSS

Principal Investigator: Arash Khosravifar

Cascadia Subduction Zone (CSZ) is expected to produce a Magnitude 9 earthquake that can adversely affect the transportation networks in the Pacific Northwest (PACNW). This includes highway bridges specifically the ones crossing the Columbia and Willa ... Read More