A PULSED DOPPLER RADAR EXPERIMENT FOR HIGHWAY TRAFFIC RESEARCH

TRAFFIC FLOW IS A CONTINUOUS PROCESS WHEREIN SPACE AND TIME MEASUREMENTS ARE IMPORTANT AND VARIABLES (E.G., NUMBERS OF VEHICLES, VEHICULAR SPEEDS, HEADWAYS, AND THE LIKE) FORM THE BASIS FOR DEVELOPMENT. THE USE OF A PRECISION PULSED DOPPLER RADAR TO ESTIMATE CONTINUOUSLY THE VARIATIONS IN PARAMETER VALUES IS DESCRIBED. THE RADAR WAS POSITIONED TO SURVEY A LENGTH OF HIGH-SPEED HIGHWAY. USING RANGE-GATING TECHNIQUES, THE RADAR RESPONSES COULD BE LIMITED TO ONLY THOSE VEHICLES ON A SPECIFIC LENGTH OF THE HIGHWAY, THE LENGTH AND POSITION OF THE LENGTH BEING DETERMINED BY THE RANGE-GATING SYSTEM. THE INSTANTANEOUS SPEED OF EACH VEHICLE IN THE RANGE GATE (TO A RESOLUTION OF 0.15 MPH) WERE MEASURED BY THE DOPPLER RADAR TO PROVIDE A TIME HISTORY OF THE DISTRIBUTION OF SPEEDS ALONG A LENGTH OF HIGHWAY. OTHER IMPORTANT MEASUREMENTS IN TRAFFIC FLOW THEORY ARE ALSO SUGGESTED BY THE RESULTS OBTAINED. /AUTHOR/

Media Info

  • Media Type: Print
  • Features: Figures; References; Tables;
  • Pagination: pp 92-104
  • Monograph Title: Traffic flow characteristics
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00228013
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Oct 13 1970 12:00AM