COLLISION AVOIDANCE RADAR BRAKING SYSTEMS INVESTIGATION. PHASE II STUDY. VOLUME I. SUMMARY REPORT

An instrumented test automobile equipped with an automatic/noncooperative radar brake system was used to gather and classify experimental data on radar false alarms as a function of various radar system parameters such as: detection range cut off (RCO), antenna beamwidth, range delay and vehicle velocity. The test vehicle was driven over three roadways under actual traffic conditions within the metropolitan area of Detroit, Michigan. The roadways typify much of the high density, high speed, urban and suburban driving in the United States. Results of the test program showed that both the detection range cut off and antenna beamwidth have a pronounced effect upon the false alarm problem; the range delay and vehicle velocity are of secondary importance. Analytical analyses were also performed to determine the effects of radar design parameters such as beamwidth and frequency on rain clutter and radar detection probability for three target classifications ranging from pedestrians to full size passenger cars. A computer simulation program was employed to evaluate the system cost-effectiveness of 36 system configurations.

• Supplemental Notes:
  • See also PB-237 546.
• Corporate Authors:

  Bendix Research Laboratories

  2800 Ten and One-Half Mile Road
  Southfield, MI  United States  48076

  National Highway Traffic Safety Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Wong, R E
  • Faris, W R
  • Grierson, W O
  • Troll, W C
  • Powell, Y M
• Publication Date: 1976-9

Media Info

• Pagination: 53 p.

Subject/Index Terms

• TRT Terms: Antennas; Automatic control; Automobiles; Braking; Cost effectiveness; Crash avoidance systems; Crashes; Data collection; Dynamic braking; Factor analysis; Field tests; Performance evaluations; Prevention; Radar; Radar devices; Range (Statistics); Safety; Safety engineering; Simulation; Testing; Vehicle range; Velocity; Warning systems
• Uncontrolled Terms: Experimental data; Revisions
• Old TRIS Terms: Beam width; Radar target designators; Range extremes
• Subject Areas: Highways; Safety and Human Factors; Security and Emergencies;

Filing Info

• Accession Number: 00143997
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: RLD-8035-Vol-1 Final Rpt., HS-802 019
• Contract Numbers: DOT-HS-4-00913
• Files: HSL, NTIS, TRIS, USDOT
• Created Date: Dec 15 1977 12:00AM