Mobile platform for overhead detectors of road vehicles.

Details

• Creators:
  Eke, Fidelis O.
• Corporate Creators:
  University of California, Davis. Dept. of Mechanical and Aeronautical Engineering. AHMCT Center
• Subject/TRT Terms:
  • Vehicle detectors
  • California
  • Traffic monitoring
  • Equipment and supplies
• Publication/ Report Number:
  RTA-65A0102
• Resource Type:
  Tech Report
• Geographical Coverage:
  California
• Corporate Publisher:
  California. Department of Transportation
• Abstract:
  The California Department of Transportation (CALTRANS) has a need to monitor traffic flow over freeways. Currently, this is done mainly ; through the use of “loop detectors.” These are measuring devices that are buried under the road pavement, and that can indicate whether or not ; a vehicle is present, and give qualitative speed relationships. Because this class of detectors are known to have low reliability, CALTRANS is ; working on developing a new family of sophisticated electronic sensing devices for the purpose of monitoring certain characteristics of road ; vehicles as they move along the highway. The devices currently under development are to be located overhead individual highway traffic ; lanes, from where they can have a clear “view” of ground vehicles. In order to deploy these devices, there is a need to develop the capability to ; safely and efficiently mount them above highway traffic lanes, using existing overhead bridges and sign structures as support structures. ; In fulfillment of a CALTRANS contract for the development of a viable mounting system for these new electronic measuring instruments, this ; report presents a complete engineering study of a mobile support platform that will use existing walkway structure as support. The study ; discusses such issues as mobility, effects of wind loading from moving vehicles, vibration isolation, safety, reliability, and resistance to ; environmental and other hazards. The report includes information on the complete design, construction, and testing of a prototype of the ; platform system.
  More +
• Format:
  PDF
• Funding:
  65A0102
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/27637/dot_27637_DS1.pdf
• File Type:
  [PDF - 2.19 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:34aebfe4add98e954b7f21ca8c184f5bf5dc7c163ccd652a2e5997c393988cb3