U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590

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Project Information
Project ID:   FHWA-PROJ-14-0004
Project Name:   Pavement Safety Performance (PSP) Data Analysis Program
Project Status:   Active
Start Date:  March 5, 2014
End Date:  January 6, 2017
Contact Information
Last Name:  Sherwood
First Name:  James A
Telephone:  202-493-3150
E-mail:  jim.sherwood@dot.gov
Office:   Office of Infrastructure Research and Development
Team:   Infrastructure Analysis and Construction Team [HRDI-20]
Program:   Turner-Fairbank Highway Research Center
Laboratory:   Geometric Design Laboratory
Project detail
Roadmap/Focus area(s):   Safety Data and Analysis
Project Description:   This project will integrate pavement performance databases with highway safety information systems, and analyze the data to develop crash modification factors and pavement management strategies that include safety.
(1) Prove that pavement surface characteristics are the most important factors affecting the number of fatal and disabling injury crashes. 
(2) Prove that rigid pavements have lower crash rates than flexible pavements.  
(3) Demonstrate that the concrete mixture proportions associated with higher strength concretes have lower friction numbers and that an intermediate strength provides the optimum performance in terms of safety and distress.
(4) Demonstrate that recycled asphalt concrete pavements have lower friction numbers.
(5) Prove that the current state-of-the-art method to develop Crash Modification Factors (Empirical Bayes) yield inaccurate numbers for pavements.
Field Test:   Friction testing and real-life crash data.
Product Type:   Techbrief
Technical report
Test Methodology:   Staff study that uses the work of contractors and relevant research.
Expected Benefits:   Pavement management practices that result in more cost-effective roads by reducing fatal and incapacitating injuries.
Deliverables: Name: Conference paper(s).
Product Type(s): Techbrief, Technical report
Description: This research will produce a set of papers.
FHWA Topics:   Safety--Highway Safety Improvement Program (HSIP) / Strategic Highway Safety Plan (SHSP)
TRT Terms:   Crash Rates
Crash Causes
Pavement Performance
FHWA Disciplines:   Pavement and Materials
Subject Areas:   Highways
Maintenance and Preservation


Federal Highway Administration | 1200 New Jersey Avenue, SE | Washington, DC 20590 | 202-366-4000
Turner-Fairbank Highway Research Center | 6300 Georgetown Pike | McLean, VA | 22101