SEISMIC DETECTION OF MOTOR VEHICLES

The technical feasibility of detecting the approach of motor vehicles by seismic means was determined by the recording and analysis of road vibration, and verified by the construction of a seismic switch which was reliably triggered at a distance of 50 metres (164 ft) along the pavement by vehicles travelling at 50 km/h (30 mph).

• Supplemental Notes:
  • See also report dated Jul 75, COM-75-11127.
• Corporate Authors:

  National Bureau of Standards

  14th Between E Street and Constitution Avenue, NW
  Washington, DC  United States  20234

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Kenney, J M
• Publication Date: 1976-5

Media Info

• Pagination: 25 p.

Subject/Index Terms

• TRT Terms: Ceramic materials; Electric switches; Electronic equipment; Feasibility analysis; Lead compounds; Motor vehicles; Piezoelectric materials; Piezoelectric transducers; Polymers; Pressure gages; Resins; Seismology; Speed; Traffic speed; Vehicle detectors; Vibration; Vinyl resins
• Uncontrolled Terms: Switches
• Old TRIS Terms: Electronic switches; Lead inorganic compounds; Lead titanates; Pressure sensors; Seismic detection; Vinylidene resins; Zirconates
• Subject Areas: Highways; Operations and Traffic Management;

Filing Info

• Accession Number: 00167380
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: FHWA-RD-76-161 Final Rpt., FCP 31I1-112
• Contract Numbers: P.O. 4-1-0192
• Files: NTIS, TRIS, USDOT
• Created Date: Dec 27 1977 12:00AM