Freeway Surveillance Data

Details

• Creators:
  Payne, Harold J. ; Helfenbein, E. D.
• Corporate Creators:
  Technology Service Corporation
• Contributors:
  Tignor, Samuel C.
• Corporate Contributors:
  United States. Department of Transportation. Federal Highway Administration. Offices of Research and Development
• Subject/TRT Terms:
  • Traffic surveillance
  • Incident detection
  • Freeways
  • Traffic volume
  • Traffic lanes
• Publication/ Report Number:
  FHWA-RD-76-74
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Edition:
  Interim Report
• Contracting Officer:
  Tignor, S.C.
• Corporate Publisher:
  United States. Department of Transportation. Federal Highway Administration. Offices of Research and Development
• Abstract:
  The development and testing of incident detection algorithms was based upon freeway surveillance data obtained from Los Angeles and Minneapolis. In the instance of Los Angeles data, data were in the form of samples of the sensor presence pulses fifteen times per second. For purposes of this study, these data were aggregated in the form of twenty-second averages, by lane, of occupancy and volume. Data obtained from Minneapolis were already aggregated in the form of thirty-second averages of occupancy and volume, usually averaged over all lanes at a sensor station. These aggregated data are available in the form of magnetic tapes. The organization and contents of these tapes are described here. The data include instances of malfunctioning sensors.
• Format:
  PDF
• Funding:
  DOT-FH-11-8278
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/74680/dot_74680_DS1.pdf
• File Type:
  [PDF - 15.74 MB]
• Collection(s):
  Federal Highway Administration
• Main Document Checksum:
  urn:sha-512:31519292458d2eb9edd8be14463ce67c1315b3cef177ecab8acda9ced017c6fc1d3029bfafad68b38e2429c10bf936d6bb7c02c384bfb0aa653db2d3ff05d517