Minimum Retroreflectivity of Traffic Signs and Pavement Markings

This final report contains two separate reports which describe the retroreflectivity levels of various traffic signs and pavement markings on the lowa primary road system. The data was collected in the falll and winter of 1994 and given to the Federal Highway Administration in March of 1995. This information is currently being combined with similar information from other jurisdictions across the country for the purpose of determining the impact of mandated minimum retroreflectivity levels. The Federal Highway Administration (FHWA) will be releasing their report sometime in in October 1996, Congress mandated (Public Law 102-388) the Secretary of Transportation to revise the Manual of Uniform Traffic Control Devices to include a minimum level of retroreflectivity for pavement markings and traffic signs which shall apply to all roads open to public travel. In 1994, the FHWA initiated research studies to determine the retroreflectivity levels which currently exist for signs and markings in an attempt to develop standards which are reasonable to implement. The lowa Department of Transportation participated in both of the studies and the final reports are included. After compilation and analysis of the collected retroreflectivity data, the FHWA will propose the new Manual of Uniform Traffic Control Devices (MUTCD) standards through the federal rule making process. It is estimated that the actual MUTCD change will occur sometime in late 1997 or early 1998.

• Record URL:
  • http://publications.iowa.gov/id/eprint/19744
• 
• Record URL:
  • https://rosap.ntl.bts.gov/view/dot/23944
• Corporate Authors:

  Iowa Department of Transportation

  800 Lincoln Way
  Ames, IA  United States  50010

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Gent, Steve J
• Publication Date: 1995-11

Language

• English

Media Info

• Media Type: Digital/other
• Edition: Final Report
• Features: Figures; Tables;
• Pagination: 33p

Subject/Index Terms

• TRT Terms: Data collection; Retroreflectivity; Road markings; Traffic signs
• Identifier Terms: Manual on Uniform Traffic Control Devices
• Geographic Terms: Iowa
• Subject Areas: Highways; Operations and Traffic Management; I73: Traffic Control;

Filing Info

• Accession Number: 01368810
• Record Type: Publication
• Report/Paper Numbers: HR-562, IA-94-05
• Files: NTL, TRIS, USDOT, STATEDOT
• Created Date: Apr 30 2012 7:54AM