Traffic monitoring system

Communications: electrical – Traffic control indicator

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

340436, 340905, 340917, 340933, 340936, G08G 108

Patent

active

056170866

ABSTRACT:
A traffic monitoring system comprises a set of in-road sensor arrays for providing signals in response to a vehicle traversing the sensor arrays, a processor unit for processing the signals to determine vehicle speed and specific parameters such as axle count and spacing, and a traffic signal or sign controllable by the processor unit. The processor unit stores data specific to the site at which the traffic monitoring system is installed and uses the site-specific information and the specific parameters measured for the vehicle to determine whether or not to activate the traffic signal or sign. One embodiment is located before a steep downgrade and computes a safe descent speed for a vehicle to descend the downgrade and displays the safe speed on a roadside sign. Another embodiment is located before a curve, such as a highway exit ramp, and uses data such as ramp curvature and superelevation, together with vehicle height and class information to predict whether or not the vehicle will exceed a threshold speed for that vehicle to negotiate that curve without rollover. A third embodiment is located on a steep downgrade approaching a traffic signal controlled intersection and computes whether or not the vehicle is a "runaway" which cannot stop at the intersection if necessary, in which case the system pre-empts the traffic signal to ensure that the vehicle has right or way through the intersection. A video system records vehicles which prompted pre-emption.

REFERENCES:
patent: 3275984 (1966-09-01), Barker
patent: 3544958 (1970-12-01), Carey et al.
patent: 3680043 (1972-07-01), Angeloni
patent: 3788201 (1974-01-01), Abell
patent: 3835945 (1974-09-01), Yamanaka et al.
patent: 3920967 (1975-11-01), Martin et al.
patent: 3927389 (1975-12-01), Neeloff
patent: 3983531 (1976-09-01), Corrigan
patent: 4049069 (1977-09-01), Tamamura et al.
patent: 4250483 (1981-02-01), Rubner
patent: 4251797 (1981-02-01), Bragas et al.
patent: 4284971 (1981-08-01), Lowry et al.
patent: 4560016 (1985-12-01), Ibanez et al.
patent: 4591823 (1986-05-01), Horvat
patent: 4727371 (1988-02-01), Wulkowicz
patent: 4750129 (1988-06-01), Hengstmengel et al.
patent: 4793429 (1988-12-01), Bratton et al.
patent: 4806931 (1989-02-01), Nelson
patent: 5008666 (1991-04-01), Gebert et al.
patent: 5109224 (1992-04-01), Lundberg
patent: 5146219 (1992-09-01), Zechnall
patent: 5173672 (1992-12-01), Heine
patent: 5231393 (1993-07-01), Strickland
patent: 5315295 (1994-05-01), Fujii

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Traffic monitoring system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Traffic monitoring system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Traffic monitoring system will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-542743

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.