VEHICLE SURVEILLANCE TEST BED: IMPLEMENTATION OPERATION AND EVALUATION

TRW INSTALLED A SURVEILANCE TEST BED IN HOUSTON, TEXAS TO INVESTIGATE THE ACCURACY OF COMPUTERIZED SYSTEMS IN DETERMINING PARAMETERS. DATA FROM A HEAVILY INSTRUMENTED, THREE-INTERSECTION TEST BED IN DOWNTOWN HOUSTON WAS COMMUNICATED APPROXIMATELY THIRTY MILES VIA LEASED LINES TO TRW'S FACILITY FOR PROCESSING BY A SIGMA 5 COMPUTER. THE SOFTWARE USED TO PROCESS THE DATA WAS DESIGNED TO PERMIT VARIOUS GROUPINGS OF SENSORS TO BE ANALYZED TO DETERMINE PREFERRED SENSOR LOCATIONS. VALIDATION DATA WAS OBTAINED USING A TELEVISION CAMERA MOUNTED ON THE ROOF OF AN ADJACENT BUILDING. IT WAS FOUND THAT TRAFFIC PARAMETER ERRORS OF 10 PERCENT OR LESS CAN BE ACHIEVED 90 PERCENT OF THE TIME, USING PROPER INSTRUMENTATION. /AUTHOR/

• Corporate Authors:

  ISA Associates, Incorporated

  201 North Union Street, Suite 330
  Alexandria, VA  United States  22314
• Authors:
  • Barnfield, C L
  • Cooper, D L
  • Serrell, M A
• Publication Date: 1972

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 84-96
• Serial:
  • Volume: 11
  • Issue Number: 1

Subject/Index Terms

• TRT Terms: Accuracy; Evaluation; Information processing; Sensors; Surveillance; Traffic control
• Uncontrolled Terms: Parameters
• Old TRIS Terms: Traffic control systems
• Subject Areas: Highways; Operations and Traffic Management;

Filing Info

• Accession Number: 00226441
• Record Type: Publication
• Files: TRIS
• Created Date: Dec 13 1972 12:00AM