RECOMMENDED DELINEATION TREATMENTS AT SELECTED SITUATIONS ON RURAL STATE HIGHWAYS-PART II

Four rural curves were video-taped at night following treatment with six different levels of delineation: 1) no delineation; 2) centerline only; 3) centerline and edgeline; 4) centerline and edgeline and post delineations; 5) centerline and edgeline and raised pavement markers (RPM); and 6) all delineators present. Video presentations were randomly given to 78 subjects. Their response involved distance from target when the curve was detected, direction of the curve and confidence in detecting decision. Results demonstrated significant differences in detection distances as a function of the level of treatment. Addition of RPM's to centerline and edgemarkers gave the largest increase in detection distances. Right hand curves were detected sooner than left hand curves with the same treatments. Post delineation aided in curve detection for left hand but not right hand curves. Age, sex and background of subject had no effect on performance. (Author)

• Corporate Authors:

  Ohio State University, Columbus

  Engineering Experiment Station, 2070 Neil Avenue
  Columbus, OH  United States  43210

  Ohio Department of Transportation

  25 South Front Street
  Columbus, OH  United States  43215

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Nemeth, Z A
  • Rockwell, T H
  • Smith, G L
• Publication Date: 1985-3

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: 60 p.

Subject/Index Terms

• TRT Terms: Drivers; Geometric curves; Highway delineators; Highway design; Reaction time; Road markings; Rural highways; Sight distance; State highways
• Uncontrolled Terms: Driver reaction
• Old TRIS Terms: Highway delineation; Traffic marking
• Subject Areas: Highways; Operations and Traffic Management; Safety and Human Factors; I73: Traffic Control;

Filing Info

• Accession Number: 00395185
• Record Type: Publication
• Report/Paper Numbers: FHWA-OH-85-002 Final Rpt.
• Files: TRIS, USDOT, STATEDOT
• Created Date: Nov 30 1988 12:00AM