Social and Behavioral Sciences Commons^™

Evaluation Of Bus/Bicycle Andbus/Right-Turn Traffic Delays And Conflicts, Miguel A. Figliozzi, Katherine Keeling, Travis Glick

TREC Final Reports

This research evaluates conflicts and delays caused by interactions between buses, bicycles, and right-turningvehicles. Two concerns caused by these overlapping bus, bicycle, and automobile facilities are analyzed; the firstconcern is the number of bus-bicycle conflicts (as a proxy for safety) and the second concern is bus delay. Video datawas collected and analyzed to quantify conflicts, travel time, and delay. For every bus passing through the study site,the mixed-traffic scenario that the bus incurs was categorized as one of 72 different combinations of bus, bicycle, andautomobile interactions. Video count data was weighted according to seasonal, weekly, and hourly bicycle volumedata to …

Drivers' Attitudes And Behaviors Toward Bicyclists: Intermodal Interactions And Implications For Road Safety, Tara Beth Goddard

Dissertations and Theses

Road safety concerns are a legitimate concern when promoting increased bicycle use. Currently, the share of bicyclist traffic fatalities and injuries is not proportional to its mode share, and presents both a public health concern and a disincentive to people taking up or continuing to bicycle for transportation. Bicycling is not an inherently dangerous activity; automobile drivers pose the most risk of harm in crashes with bicyclists. Despite that, drivers' attitudes and behaviors toward bicyclists have not enjoyed much systematic study, particularly in the United States. This research explored the dimensions of drivers' attitudes toward bicyclists, including implicit bias and …

Webinar: Integrating Explicit And Implicit Methods In Travel Behavior Research: A Study Of Driver Attitudes And Bias, Tara Goddard

TREC Webinar Series

Car crashes are still a leading cause of death in the United States, with vulnerable road users like bicyclists and pedestrians being injured or killed at rates that outpace their mode share.

Planners, engineers, and advocates are increasingly adopting Vision Zero and Tactical Urbanism approaches and trying to better understand the underlying causes of dangerous roadway interactions. However, existing research into crash causation has focused on instrumental factors (e.g. intersection type, vehicle speed) while little research has probed the role of attitudes or socio-cognitive mechanisms in interactions between roadway users.

Social psychology suggests that attitudes and social cognitions can play …

Examining The Right To Bicycle: Synergies And Tensions Between Human Rights, Civil Rights, And Planning For Cycling, Aaron Golub

PSU Transportation Seminars

Securing and expanding the broad right to bicycle, including the right to adequate and safe street space and related infrastructure for cycling along with other policies and protections for cyclists, is the obvious goal of cycling advocacy efforts in their various forms. All rights are situated within frameworks for promulgating and insuring they are honored, and the right to cycling is no different. This project investigates how the right to bicycle falls within various rights frameworks, focusing on broad human rights and civil rights frameworks while reflecting as well on traffic safety codes and transportation planning frameworks. While certain aspects …

Influence Of Road Cross Section On Access Spacing, Karen K. Dixon, Yanfen Zhou, J. L. Gattis

TREC Final Reports

This report presents a study on the influences of select cross-sectional-related design elements (specifically median configurations and bicycle lanes) and their impact on crash severity and type, as well as the associated driver gap acceptance for turning maneuvers at midblock driveway locations on urban arterials. The primary goal of this proposed research is to better understand how the median and bicycle lane configurations can influence safety and operations at driveway locations. The research team utilized crash data, traffic data, and roadway information from driveway locations in the U.S. states of Oregon, Arkansas and Oklahoma. The project team supplemented the data …

Enhancing Bicycle And Pedestrian Education Through Curriculum And Faculty Development, Lynn Weigand

TREC Final Reports

This project was intended to provide relevant curriculum on bicycle and pedestrian transportation that can be used by planning and engineering faculty to integrate these topics into their course offerings. We developed a module-based curriculum for bicycle and pedestrian planning and design that is current, relevant to practice, and adaptable for use in a variety of course offerings in engineering and planning departments. We also procured 33 new publications for the Millar Library to support coursework on this topic. In addition, a proposal to pilot a faculty development workshop was funded, allowing us to provide training and resources to transportation …

Contesting The North Williams Traffic Operations And Safety Project, Amy Lubitow, Thaddeus R. Miller

Urban Studies and Planning Faculty Publications and Presentations

The North Williams Traffic Safety Operations Project, overseen by the Portland Bureau of Transportation (PBOT), was proposed in 2010. With an initial budget of $370,000, the project was designed to reduce conflict between buses, bicycles and motor vehicles on North Williams Avenue and improve the overall safety and accessibility of the street. As is common practice, PBOT’s first step in this project was to organize a stakeholder advisory committee (SAC) of interested business owners, neighborhood association representatives, residents, and key stakeholders living or working along North Williams Avenue who would be tasked with advising the city on the project. However, …

Evaluation Of Innovative Bicycle Facilities: Sw Broadway Cycle Track And Sw Stark/Oak Street Buffered Bike Lanes, Christopher Michael Monsere, Nathan Mcneil, Jennifer Dill

Urban Studies and Planning Faculty Publications and Presentations

Two innovative bicycle facilities installed in late summer and early fall 2009 in downtown Portland by the City of Portland Bureau of Transportation (PBOT) were evaluated to understand how they are functioning on multiple levels. All of these facilities involved removing a motor vehicle lane by restriping to provide additional roadway space to bicyclists. The facilities include:

• A cycle track (a seven-foot bike lane separated from motor vehicle traffic by a row of parked cars and a painted three-foot pedestrian buffer), on SW Broadway from SW Clay to SW Jackson through the Portland State University campus, and
• A couplet of …

Ibpi: Bicycle And Pedestrian Education Program, Jennifer Dill, Lynn Weigand, Karen Dixon

Urban Studies and Planning Faculty Publications and Presentations

Since the 1990s, the amount of attention and funding for bicycle and pedestrian infrastructure has increased significantly. This, combined with the role of transportation in public health and environmental concerns, has raised expectations for engineering and planning practitioners to possess more knowledge and skills related to pedestrian and bicycle planning and design. This demand requires more education around these topics but university curriculum doesn?t reflect these important shifts in the field. This project was intended to begin addressing the need for more bicycle and pedestrian curriculum in two ways: (1) Determine the existence of and need for courses and curriculum …

Evaluation Of Bike Boxes At Signalized Intersections [Presentation], Jennifer Dill, Christopher M. Monsere

Urban Studies and Planning Faculty Publications and Presentations

A presentation summarizing findings of a study on the effectiveness of bike boxes at signalized intersections. Presentation delivered to the Association of Collegiate Schools of Planning Conference in Minneapolis, MN, Oct. 7-10, 2010.