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:
  California Equipment And Supplies Traffic Monitoring Vehicle Detectors
• 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.
  
  
• Format:
  PDF
• Funding:
  65A0102
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:34aebfe4add98e954b7f21ca8c184f5bf5dc7c163ccd652a2e5997c393988cb3
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/27637/dot_27637_DS1.pdf
• File Type:
  [PDF - 2.19 MB ]