A Comprehensive Literature Review Detailing the Methods for Setting Speed Limits in Urban Areas

Many cities in Oregon are requesting a comprehensive review of speed zoning guidelines and existing procedures for streets with high volumes of active travelers. Cities are proposing alternative speed zoning guidelines that are starkly different from existing guidelines based on the 85th percentile speed distribution. The alternative guidelines and criteria for setting speed zones have not been thoroughly studied or evaluated yet. This report presents a comprehensive review of literature pertaining to factors which may influence operating speeds, speed limits compliance, and relationships between speed and crash frequency and/or severity. The focus is on urban areas and roadways with a high percentage of active users. This review is intended to support research and policy analysis that examine alternate criteria for setting speed zones on roadways with a high percentage of active travelers.


  • English

Media Info

  • Media Type: Digital/other
  • Edition: Literature Review
  • Features: Appendices; Figures; References; Tables;
  • Pagination: 111p

Subject/Index Terms

Filing Info

  • Accession Number: 01768269
  • Record Type: Publication
  • Report/Paper Numbers: FHWA-OR-RD-21-15
  • Created Date: Mar 23 2021 9:55AM