EVALUATION OF THE HIGH LOAD DETECTION AND WARNING SYSTEM ON I.H. 45 IN HOUSTON
The detection and warning system to alert truck drivers of overheight loads in advance of a low clearance structure on I.H. 45 in Houston is evaluated. Volume and speed data taken during control studies indicate that the warning system did not adversely affect traffic operations in the study section. Analysis of brake light applications indicate that in three of five time periods over three days, the warning system was significantly noticeable and did cause momentary braking reactions. Tests conducted on the photoelectric sensors and incandescent lamp source in the detection system indicate that various size objects (one inch and more in size) will be detected under certain light source to detector distances.
- Sponsored by the Texas State Department of Highways and Public Transportation. Research done in cooperation with DOT and FHWA.
Arlington, TX USA 76011
- Ritch, G P
- Publication Date: 1976-3
- Pagination: 53 p.
- TRT Terms: Brake lamps; Detection and identification; Detectors; Evaluation; Highway operations; Incandescent lamps; Oversize loads; Studies; Traffic; Traffic speed; Truck drivers; Warning systems
- Uncontrolled Terms: Overloads; Photoelectricity
- Old TRIS Terms: Braking lights; Speed studies
- Subject Areas: Highways; Operations and Traffic Management; Safety and Human Factors;
- Accession Number: 00141040
- Record Type: Publication
- Source Agency: Federal Highway Administration
- Report/Paper Numbers: TTI-2-18-75-202-1 Intrm Rpt., FCP 42G1022
- Contract Numbers: 2-18-75-202
- Files: TRIS, USDOT
- Created Date: Oct 6 1976 12:00AM