Traffic sensor for roadway placement
OwnerGuy P. Gibsoninventor
Life of this patent
Estimating the term…
Abstract
A traffic sensor for dispostion across a lane or lanes of a roadway includes a pliable strip within which is housed a flexible carrier which in turn supports electrical sensors and coaxial cables. The components are in circuit with a roadside located recording device. Vehicle imparted loads applied to the strip and carrier are counteracted by an inelastic member extending lengthwise of the strip to prevent erroneous electrical impulses. The inelastic is embodied in strands of material embedded in the carrier. Fastener elements extend through the strip for insertion into the roadway for strip retention.
Claims10
A traffic sensor for placement on a roadway having at least one traffic lane and comprising,
- an elastomeric strip for placement across the traffic lane,
- an elongate carrier of elastomeric material extending lengthwise of and embedded in said strip, said carrier including an inelastic component of woven strands of synthetic material, said carrier defining a groove subjacent said inelastic component and extending in a lengthwise direction of the carrier,
- an elongate electrical sensor occupying said groove and of the type actuated by a force imparted to said strip and the carrier by a wheel of a vehicle passing thereover to generate an electrical impulse, and
- a conductor in circuit with said sensor and terminating exteriorly of the elastomeric strip.
In a traffic sensor having an elastomeric strip for placement across a traffic lane of a roadway, an electrical component housed in said strip and responsive to forces exerted by a wheel of a vehicle passing over said strip, the improvement comprising an elongate carrier of elastomeric material embedded in the strip, said carrier having an integral non-metallic inelastic member inhibiting elongation of the carrier, an open area defined by the carrier extending lengthwise thereof and subjacent said inelastic member for the reception of said electrical component.
A traffic sensor for placement on a roadway having at least one traffic lane and comprising,
- an elastomeric strip for placement across the traffic lane,
- an elongate carrier of elastomeric material extending lengthwise of said strip and including a woven component, said carrier defining a groove subjacent said woven component and extending in a lengthwise direction of the carrier,
- a pressure actuated sensor in said open area and generating an electrical impulse upon a force being imparted to the carrier by a vehicle, and
- a conductor in circuit with said sensor and terminating exteriorly of the elastomeric strip for transmission of the impulse to a device monitoring vehicle travel.
Dependencies are inferred from the claim text.