AUTOMATIC DETECTION OF FREEWAY INCIDENTS DURING LOW VOLUME CONDITIONS
A computer program to detect vehicular incidents which occur on urban freeways operating at low volume conditions was developed, tested and evaluated. The type of incidents to be detected are those vehicles which entered but for some reason did not pass through a defined study section. The algorithm can operate in realtime and is based on an individual vehicle input-output process. It was tested on traffic data from a four-lane section of freeway in Houston, Texas. The algorithm's performance was evaluated over a wide range of traffic volumes (100 to 1200 vehicles per hour) and three different detector spacings - 500, 1000 and 1500 feet.
- Sponsored in part by Texas State Dept. of Highways and Public Transportation, Austin. Transportation Planning Div.
Arlington, TX United States 76011
Washington, DC United States 20590
Texas State Department of Highways & Public TransportationTransportation Planning Division, P.O. Box 5051
Austin, TX United States 78763
- Fambro, D B
- Ritch, G P
- Publication Date: 1979-9
- Pagination: 73 p.
- TRT Terms: Algorithms; Computer programming; Computer programs; Freeways; Highway transportation; Highways; Information processing; Spacing; Traffic crashes; Traffic engineering; Traffic safety; Traffic volume; Vehicle detectors
- Uncontrolled Terms: Motor vehicle accidents
- Old TRIS Terms: Freeway traffic accidents
- Subject Areas: Highways; Operations and Traffic Management; Safety and Human Factors; I71: Traffic Theory; I85: Safety Devices used in Transport Infrastructure;
- Accession Number: 00337247
- Record Type: Publication
- Source Agency: National Technical Information Service
- Report/Paper Numbers: FHWA/TX-79/23-210-1 Res Rpt., TTI-2-18-77-210-1
- Files: NTIS, TRIS, USDOT, STATEDOT
- Created Date: Aug 15 1981 12:00AM