Field evaluation of unlighted overhead guide signs using older drivers : executive summary report.

Details

• Creators:
  Zwahlen, Helmut T.
• Corporate Creators:
  Ohio University. Ohio Research Institute for Transportation and the Environment. Human Factors and Ergonomics Laboratory
• Corporate Contributors:
  Ohio. Office of Traffic Engineering ; United States. Federal Highway Administration
• Subject/TRT Terms:
  • Overhead traffic signs
  • Aged drivers
  • Evaluation
  • Retroreflectivity
  • Luminaires
  • Traffic signs and signals--Testing
• Publication/ Report Number:
  FHWA/OH-2003/015
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Edition:
  Executive summary report.
• Corporate Publisher:
  Ohio Research Institute for Transportation and the Environment. Human Factors and Ergonomics Laboratory
• Abstract:
  Problem: In the preceding Unlighted Overhead Guide ; Sign Feasibility Study, it was determined that ; the lighting of overhead guide signs on ; freeways could be eliminated if white ; microprismatic Type VII or Type IX legends ; were used on green beaded Type III ; backgrounds. Because the expert panel in that ; study was limited to ODOT engineers who ; were relatively young (average age 38), it was ; considered necessary to conduct a second ; study to ensure that these unlighted overhead ; guide signs would meet the needs of older ; drivers, who have typically degraded visual ; capabilities. Additionally, there was interest ; in evaluating Type VIII and m icroprismatic ; Type III sheeting materials, which were not ; included in the first study.
  More +
• Format:
  PDF
• Funding:
  State Job No. 14812(0)
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/17522/dot_17522_DS1.pdf
• File Type:
  [PDF - 24.71 KB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:5251366c80e9deb5c613fe2cdb8e462ec193fc9c04f422754271198aa872c40cf08b077190265b1f2320ff8261bb1df4d008eaeaa4a570e344d7388341dd8d2b