Sponsor
Portland State University. Department of Civil & Environmental Engineering
First Advisor
Christopher M. Monsere
Date of Publication
1-1-2011
Document Type
Thesis
Degree Name
Master of Science (M.S.) in Civil & Environmental Engineering
Department
Civil and Environmental Engineering
Language
English
Subjects
Crashes, Adverse weather, Radar weather data, Automobile driving -- Climatic factors -- Oregon -- Portland, Automobile driving in rain -- Oregon -- Portland, Traffic safety -- Oregon -- Portland -- Evaluation, Traffic accidents -- Oregon -- Portland -- Causes
DOI
10.15760/etd.255
Physical Description
1 online resource (vi, 56 p.) : ill. (chiefly col.)
Abstract
Adverse weather is considered as one of the important factors contributing to injuries and severe crashes. During rainy conditions, it can reduce travel visibility, increase stopping distance, and create the opportunity hydroplaning. This study quantified the relative crash risk on Oregon 217 southbound direction under rainy conditions by using a match-paired approach, applied one-year traffic data, crash data and NEXRAD Level II radar weather data. There are 26 crashes occurred in match-paired weather conditions for Oregon 217 in year 2007. The results of this study indicate that a higher crash risk and a higher property-damage-only crash risk occurred during rainy days. The crash risk level varies by the location of the highway, at milepost 2.55 station SW Allen Blvd has the highest driving risks under rainy conditions.
Rights
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Persistent Identifier
http://archives.pdx.edu/ds/psu/8114
Recommended Citation
Dai, Chengyu, "Exploration of Weather Impacts on Freeway Traffic Operations and Safety Using High-Resolution Weather Data" (2011). Dissertations and Theses. Paper 255.
https://doi.org/10.15760/etd.255
Comments
Portland State University. Dept. of Civil & Environmental Engineering