A Study of the Effects of Pavement Widening, Rumble Strips, and Rumble Stripes on Rural Highways in Alabama

The objectives of this study are as follows: 1. Document the state of the practice and results of prior research; 2. Estimate reduction in run-off-road (ROR) crashes, by severity, based on the data, applying both Empirical Bayes (EB) and equivalent property damage only (EPDO) methods; 3. Develop crash modification factors for the following five treatments: Paving 2 to 4 ft of unpaved shoulders on two-lane rural roads; Combined effect of paving 2 to 4 ft of unpaved shoulder and adding rumble strips on two-lane rural roads; Combined effect of paving 2 to 4 ft of unpaved shoulder and adding rumble stripes on two-lane rural roads; Paving 2 to 4 ft of unpaved shoulders on four-lane divided rural roads; and Combined effect of paving 2 to 4 ft of unpaved shoulder and adding rumble strips on four-lane divided rural roads; 4. Quantify the benefits and costs of the Alabama Department of Transportation (ALDOT) policy; and 5. Make recommendations for future application.

• Record URL:
  https://www.eng.auburn.edu/files/centers/hrc/930-827-studyoftheeffects-turochy.pdf
• 
• Record URL:
  https://rosap.ntl.bts.gov/view/dot/32193
• Corporate Authors:

  Auburn University

  Highway Research Center, Harbert Engineering Center
  Auburn, AL  United States  36849-5337

  Alabama Department of Transportation

  1409 Coliseum Boulevard
  Montgomery, AL  United States  36130-3050

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Turochy, Rod E
  • Ozelim, Luana
• Publication Date: 2016-1

Language

• English

Media Info

• Media Type: Digital/other
• Edition: Technical Report
• Features: Appendices; Figures; References; Tables;
• Pagination: 95p

Subject/Index Terms

• TRT Terms: Benefit cost analysis; Crash modification factors; Four lane highways; Paved shoulders; Pavement widening; Ran off road crashes; Rumble strips; Rural highways; Two lane highways
• Uncontrolled Terms: Empirical Bayes method; Equivalent property damage only; Rumble stripes
• Geographic Terms: Alabama
• Subject Areas: Design; Highways; Safety and Human Factors;

Filing Info

• Accession Number: 01635042
• Record Type: Publication
• Report/Paper Numbers: FHWA/ALDOT 930-827
• Files: NTL, TRIS, ATRI, USDOT, STATEDOT
• Created Date: May 22 2017 10:32AM