Communications: electrical – Traffic control indicator – Intersection normally under local controller
Patent
1996-06-06
1998-07-07
Swarthout, Brent A.
Communications: electrical
Traffic control indicator
Intersection normally under local controller
340933, 340907, 340937, 364436, G08G 1017
Patent
active
057775648
ABSTRACT:
System and method for the improved operation of a traffic signal system which reduces delays to vehicular traffic at one or more signalized intersections by detecting vehicular demand for movement through each intersection. The present invention uses detectors for detecting vehicles entering an intersection, at a distance sufficiently great from the intersection, and for detecting vehicles leaving an intersection, at a distance sufficiently near to the intersection, to permit, when possible, one or more vehicles to proceed completely through the intersection prior to coming to a near, or complete stop. The system and method further facilitates accident reduction by monitoring portions of traffic lanes entering an intersection for vehicles, determining the probability of a vehicle being able to timely stop for a halt signal, and, if it is determined that the vehicle cannot timely stop for a halt signal, attempting to clear the intersection of other vehicles by setting all signals to halt.
REFERENCES:
patent: 3503041 (1970-03-01), Du Vivier
patent: 3582876 (1971-06-01), Carmack
patent: 3613074 (1971-10-01), Moline et al.
patent: 4215405 (1980-07-01), Brunner et al.
patent: 4370718 (1983-01-01), Chasek
patent: 4449116 (1984-05-01), Hill et al.
patent: 4590455 (1986-05-01), Frizinger
patent: 4908616 (1990-03-01), Walker
patent: 5278554 (1994-01-01), Marton
patent: 5283573 (1994-02-01), Takatou et al.
patent: 5296852 (1994-03-01), Rathi
patent: 5523753 (1996-06-01), Fedde et al.
patent: 5530441 (1996-06-01), Takatou et al.
Swarthout Brent A.
Trieu Van T.
LandOfFree
Traffic signal system and method 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 signal system and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Traffic signal system and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1210531