EVALUATION OF HIGH INTENSITY SHEETING FOR OVERHEAD HIGHWAY SIGNS
The current practice in Virginia is to reflectorize and illuminate all overhead signs because of their important role in the safe and orderly flow of traffic. The performance of high intensity sheeting has shown significant promise, and the purpose of this research was to determine the feasibility of using the material on overhead highway signs without external illumination. The brightness of six high intensity overhead signs without illumination was compared to that of six conventional illuminated signs. All experimentation was conducted in the field under the actual physical and environmental conditions experienced by the highway user. Luminance measurements were made with a telephotometer at the driver's eye position of eleven domestic automobiles. A total of 5,446 luminance measurements were recorded from the travel lanes of illuminated and non-illuminated roadways.
- Record URL:
- Prepared in cooperation with Federal Highway Administration, Washington, D.C.
Virginia Highway and Transportation Research CouncilCharlottesville, VA United States
Washington, DC United States 20590
Administration, Washington, D.C.,
- Robertson, R N
- Publication Date: 1974-12
- Pagination: 50 p.
- TRT Terms: Brightness; Evaluation; Feasibility analysis; Field tests; Legibility; Luminance; Luminescence; Measurement; Overhead traffic signs; Reflective signs; Reflectorized materials; Sheathing; Traffic signs; Visibility
- Uncontrolled Terms: Intensity
- Geographic Terms: Virginia
- Subject Areas: Geotechnology; Highways; Materials; Operations and Traffic Management;
- Accession Number: 00091464
- Record Type: Publication
- Source Agency: National Technical Information Service
- Report/Paper Numbers: VHTRC-75-R24 Final Rpt.
- Files: NTIS, NTL, TRIS, ATRI, USDOT, STATEDOT
- Created Date: Jul 24 1975 12:00AM