Prototype Mobile Luminance Measurement System and Level of Service for Evaluating Rural High-Speed Nighttime Delineation

Transportation agencies routinely travel their extensive roadway networks conducting subjective roadway assessments of traffic control devices both day and night. Retroreflectivity is a good tool for product testing but can provide false positives for traffic control devices based on the approach geometry. This research project developed an objective nighttime assessment method for traffic devices that could be tied back to a form of level of service. The project also correlated luminance data with level of service. Researchers recommend the use of precise and approximate measurement methods in conjunction with nighttime inspections and retroreflectivity measurements to assess accuracy and repeatability versus time.

• Record URL:
  • http://tti.tamu.edu/documents/0-6647-1.pdf
• Summary URL:
  • https://library.ctr.utexas.edu/Presto/catalogid=32021
• Supplemental Notes:
  • Project Title: Developing Luminance-Based Mobile Highway Delineation Equipment and Level of Service Guidelines for Safe Nighttime High-Speed Travel. Report date: February 2013; published: September 2013.
• Corporate Authors:

  Texas A&M Transportation Institute

  Texas A&M University System
  3135 TAMU
  College Station, TX  United States  77843-3135

  Texas Department of Transportation

  Research and Technology Implementation Office, P.O. Box 5080
  Austin, TX  United States  78763-5080

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Miles, Jeffrey D
  • Ge, Hancheng
  • Carlson, Paul
  • Zhang, Yunlong
• Publication Date: 2013-9

Language

• English

Media Info

• Media Type: Digital/other
• Edition: Technical Report
• Features: Figures; Maps; Photos; References; Tables;
• Pagination: 64p

Subject/Index Terms

• TRT Terms: Highway delineators; Level of service; Luminance; Night visibility; Prototypes; Retroreflectivity; Rural highways; Traffic control devices
• Geographic Terms: Texas
• Subject Areas: Highways; Safety and Human Factors; I85: Safety Devices used in Transport Infrastructure;

Filing Info

• Accession Number: 01494407
• Record Type: Publication
• Report/Paper Numbers: FHWA/TX-13/0-6647-1, 0-6647-1
• Contract Numbers: Project 0-6647
• Files: TRIS, ATRI, USDOT, STATEDOT
• Created Date: Sep 25 2013 3:13PM