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:

Supporting Files

• No Additional Files

More +