Experimental evaluation of the Continuous Risk Profile (CRP) approach to the current Caltrans methodology for high collision concentration location identification

Grembek, Offer; Kim, Kwangho; Kwon, Oh Hoon; Lee, Jinwoo; Liu, Haotian; Park, Min Ju; Washington, Simon; Ragland, David R.; Madanat, Samer

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Experimental evaluation of the Continuous Risk Profile (CRP) approach to the current Caltrans methodology for high collision concentration location identification

2012-03-31
By Grembek, Offer ; Kim, Kwangho ; Kwon, Oh Hoon

File Language:

English

Details

Creators:

Grembek, Offer ; Kim, Kwangho ; Kwon, Oh Hoon ; Lee, Jinwoo ; Liu, Haotian ; Park, Min Ju ; Washington, Simon ; Ragland, David R. ; Madanat, Samer
Corporate Creators:

University of California, Berkeley. Safe Transportation Research and Education Center
Corporate Contributors:

California. Dept. of Transportation. Division of Research and Innovation
Subject/TRT Terms:
Publication/ Report Number:

CA12-2192;UCB-0373
Resource Type:

Tech Report
Geographical Coverage:

California
Corporate Publisher:

California. Department of Transportation
Abstract:

This report evaluates the performance of Continuous Risk Profile (CRP) compared with the ; Sliding Window Method (SWM) and Peak Searching (PS) methods. These three network ; screening methods all require the same inputs: traffic collision data and Safety Performance ; Functions (SPFs), however, depending on how these input parameters are analyzed at the network ; screening level, the result of the analysis can vary significantly. Findings indicated that the CRP ; method produced far fewer false positives than SWM and PS. The false negative rates for CRP, ; SWM and PS were comparable. These findings indicate that by using the CRP method, California ; Department of Transportation (Caltrans) can significantly reduce the resources spent on ; investigating falsely identified locations and better utilize the resources in improving high collision ; concentration locations. It will also help Caltrans in reducing the backlog in Caltrans Table C.
Format:

PDF
Funding:

65A0373
Download URL:

https://rosap.ntl.bts.gov/view/dot/25929/dot_25929_DS1.pdf
File Type:

[PDF - 3.77 MB]
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha-512:36785acaad33d3d021b0361620f4d12f3cbf889f3c66cc1f217568ed69f7094762d3aead33d693838d45258314d17491caedadb77bfc4bed2762037124c145d2

File Language:

English

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