Method and apparatus for calculating the green light time in tra

Details Method and apparatus for calculating the green light time in tra Method and apparatus for calculating the green light time in tra

1978-08-31

1981-12-01

Groody, James J.

Communications: electrical

Selective

Having indication or alarm

340 31A, 340 37, 340 38R, 364437, G08G 108

Patent

active

043039057

ABSTRACT:
A traffic-dependently controllable signaling system utilizing the lengths of the time intervals between two successive vehicles for terminating the green light duration for the involved flow of traffic, in which each time interval is compared with a first, larger theoretical time limit value. If the first theoretical time limit value is reached, the green light signal for such traffic flow is terminated. In addition, all time gaps are compared with a second smaller theoretical time limit value and if this second theoretical time limit value is exceeded by two successive time intervals or at least two of a group of time intervals, the green light signal for the particular flow of traffic is likewise terminated.

REFERENCES:
patent: 3241109 (1966-03-01), Du Vivier
patent: 3466599 (1969-09-01), Clark
patent: 3833881 (1974-09-01), Drebinger et al.

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