Download Presentation (1.5 MB)

Streaming Media




Part of the Student Presentations from TRB

Pedestrians and bicyclists are the most vulnerable road users and suffer the most severe consequences when crashes take place. An extensive literature is available for crash severity in terms of driver safety, but fewer studies have explored non-motorized users’ crash severity. Furthermore, most research efforts have examined pedestrian and bicyclist crash severity in urban areas. This study focuses on state roads (mostly outside major urban areas) and aims to identify contributing risk factors of fatal and severe crashes involving pedestrians and bicyclists in state roads. The results seem to suggest that besides improvements in roadway characteristics, additional countermeasures to reduce crash severity for vulnerable users should include educational campaigns, more strict control of alcohol intoxicated drivers, and protection strategies of senior pedestrians.

Biographical Information

Álvaro Caviedes is an M.S. Student, Civil & Environmental Engineering at Portland State University. He is a M.U.R.P. Student, Nohad A. Toulan School of Urban studies and Planning, has a B.S. in Civil Engineering, Universidad de los Andes, Colombia, 2013, and currently works for PSU as a Graduate Research Assistant.


Urban transportation, Cyclists -- Stress (Physiology) -- Measurement, Transportation -- Planning -- Oregon -- Portland, Transportation and state


Civil Engineering | Environmental Engineering | Transportation | Urban Studies

Persistent Identifier

Exploring the Determinants of Vulnerable Road Users’ Crash Severity in State Roads



To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.