CHARACTERIZATION OF ROAD-EDGE MARKINGS IN SUPPORT OF ROAD-DEPARTURE PREVENTION SYSTEMS

The visual properties of painted lane markings were characterized through a field measurement exercise using a specialized trailer apparatus. The class of markings examined consisted of the continuous white stripe defining the boundary between the right lane and the shoulder of the road. Stripe width, reflectance, and contrast with lane and shoulder regions were quantified for over 6000 video images taken along a 600 mi (965.4 km) sample of Michigan highways. Data indicate that slightly less than 82 percent of the stripes surveyed had widths in the range of 8 to 15 cm, with wider stripes outside this range being more common than narrower stripes. Stripe reflectance exhibited a bimodal distribution with primary modes around 28 percent and 60 percent reflectance values. Application of the data set to an existing road-follower algorithm is discussed.

• Supplemental Notes:
  • Supported by a grant from the U.S. Department of Transportation, University Transportation Centers Program
• Corporate Authors:

  Great Lakes Center for Truck and Transit Research

  201 UMTRI Building, 2901 Baxter Road
  Ann Arbor, MI  United States  48109-2150

  University of Michigan, Ann Arbor

  ITS Research Center of Excellence, 200 Engineering Programs Building
  Ann Arbor, MI  United States  48109
• Authors:
  • Johnson, G E
  • Kluge, K C
  • Ervin, R D
• Publication Date: 1995-10

Language

• English

Media Info

• Features: Appendices; Figures; Photos; References;
• Pagination: 32 p.

Subject/Index Terms

• TRT Terms: Algorithms; Contrast; Edge lines; Equipment; Field tests; Lane lines; Prevention; Quantitative analysis; Ran off road crashes; Reflectivity; Road markings; Road shoulders; Striping materials; Traffic paint; Videotapes; Width
• Uncontrolled Terms: Field measurements; Quantifying; Reflectance
• Old TRIS Terms: Traffic marking equipment
• Subject Areas: Design; Highways; Planning and Forecasting; Security and Emergencies; I21: Planning of Transport Infrastructure;

Filing Info

• Accession Number: 00722098
• Record Type: Publication
• Report/Paper Numbers: GLCTTR 67/95-01, Final Report, UMTRI 95-42
• Contract Numbers: DTRSG-92-0005
• Files: TRIS
• Created Date: May 9 1996 12:00AM