Development of Clear Recovery Area Guidelines

This report presents guidelines to determine a recommended clear recovery distance for a given set of roadway and roadside characteristics. Due to the limitations inherent in using crash data for this purpose, an innovative methodology was used that combined encroachment simulations, crash data, statistical modeling, and risk analysis. The guidelines include a risk-based tool that correlates recommended clear zone distance with the potential for severe injuries or fatalities to motorists. The guidelines should be of interest to road design and safety professionals seeking to specify the safest and most practical clear zone recovery areas for various roadway designs.

• Record URL:
  • https://nap.nationalacademies.org/catalog/27593
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9780309709453
• Authors:
  • Bligh, Roger
  • Kutela, Boniphace
  • Cakalli, Sofokli
  • Sheikh, Nauman
  • Avelar, Raul
• Publication Date: 2024

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: 149p
• Serial:
  • NCHRP Research Report
  • Issue Number: 1097
  • Publisher: Transportation Research Board
  • ISSN: 2572-3766

Subject/Index Terms

• TRT Terms: Clear zones; Crash data; Guidelines; Highway design; Highway safety; Risk analysis; Roadside; Statistical analysis
• Subject Areas: Design; Highways; Operations and Traffic Management; Safety and Human Factors;

Filing Info

• Accession Number: 01909703
• Record Type: Publication
• ISBN: 9780309709453
• Report/Paper Numbers: NCHRP Project 17-11(03)
• Files: TRIS, TRB
• Created Date: Feb 25 2024 5:13PM