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Social and Behavioral Sciences Commons

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Transportation

Portland State University

Series

2019

Intelligent transportation systems

Articles 1 - 4 of 4

Full-Text Articles in Social and Behavioral Sciences

Fast Track: Allowing Bikes To Participate In A Smart-Transportation System, Stephen Fickas, Marc Schlossberg Oct 2019

Fast Track: Allowing Bikes To Participate In A Smart-Transportation System, Stephen Fickas, Marc Schlossberg

TREC Final Reports

This project focuses on a mode of transportation that is currently left out of V2X (vehicle-to-everything) conversations: bicycling. The project demonstrates how university researchers, city traffic engineers, and signal-controller manufacturers can come together to give bicyclists the same technology appearing on modern vehicles: Green Light Optimized Speed Advisory (GLOSA). GLOSA allows motorists to set their speed along corridors to maximize their chances of catching a “green wave” (i.e., not being forced to stop as they travel through the corridor). This project demonstrates how GLOSA can be used by bicyclists in the same way it is used by motorists on a …


How Technology Can Affect The Demand For Bicycle Transportation: The State Of Technology And Projected Applications Of Connected Bicycles, John Macarthur, Michael Harpool, Daniel Scheppke Sep 2019

How Technology Can Affect The Demand For Bicycle Transportation: The State Of Technology And Projected Applications Of Connected Bicycles, John Macarthur, Michael Harpool, Daniel Scheppke

TREC Final Reports

The term “connected vehicle (CV)” refers to vehicles equipped with devices, which enable wireless communication betweeninternal and external entities, supporting vehicle-to-vehicle (V2V), vehicle-to-infrastructure (V2I) and vehicle-to-everything (V2X)communications. The widespread deployment of CVs will address a range of transportation challenges related to safety, mobility,and sustainability. Recent research efforts on connected bicycles have focused on the uses and limitations of the state-of-the-arttechnologies, safety implications, the reliability of various communication modes, and consumer adoption. Existing researchfocuses on either technologies that utilize data received from sensors and the internet to govern devices attached to the bicycle(situational sensing) or two-way communication. While there has been …


Understanding Factors Affecting Arterial Reliability Performance Metrics, Jason C. Anderson, Rohan Sirupa, Sirisha Kothuri, Avinash Unnikrishnan Aug 2019

Understanding Factors Affecting Arterial Reliability Performance Metrics, Jason C. Anderson, Rohan Sirupa, Sirisha Kothuri, Avinash Unnikrishnan

TREC Final Reports

In recent years, the importance of travel time reliability has become equally important as average travel time. However, the majority focus of travel time research is average travel time or travel time reliability on freeways. In addition, the identification of specific factors (i.e., peak hours, nighttime hours, etc.) and their effects on average travel time and travel time variability are often unknown. The current study addresses these two issues through a travel time-based study on urban arterials. Using travel times collected via Bluetooth data, a series of analyses are conducted to understand factors affecting reliability metrics on urban arterials. Analyses …


A Decentralized Network Consensus Control Approach For Urban Traffic Signal Optimization, Gerardo Lafferriere Apr 2019

A Decentralized Network Consensus Control Approach For Urban Traffic Signal Optimization, Gerardo Lafferriere

TREC Project Briefs

Automobile traffic congestion in urban areas is a worsening problem that comes with significant economic and social costs. This report offers a new approach to urban congestion management through traffic signal control.