Road traffic control system with alternating nonstop traffic flo

Details Road traffic control system with alternating nonstop traffic flo Road traffic control system with alternating nonstop traffic flo

1992-04-20

1994-01-11

Crosland, Donnie L.

Communications: electrical

Traffic control indicator

Plural intersections under common central station control

340909, 340911, 340934, 340917, G08G 107

Patent

active

052785548

ABSTRACT:
The central version of the road traffic control system maintains nonstop flow of traffic on selected lanes of fastroads (1A, 1B, 1C, 4A, 4B, 4C, 31A, 31B, 31C, 32A, 32B, 32C) all the time by grouping the vehicles in closed columns in moving travel zones alternating with empty zones, marked by fixtures (6) emitting zone marker signals controlled by central processor (7). Columns of vehicles are grouped in travel zones (21A, 21B, 33A, 33B) alternating with empty (vacate) zones (211, 331), and are laid out in a centrally controlled grid pattern of fastroads (1A, 1B, 4A, 4B, 31A, 31B, 32A, 32B). The control system guides the moving travel zones through the empty zones of the cross roads without stopping. In local version having light traffic, stopping is reduced and quasi-nonstop traffic flow is introduced on locally controlled crossings (41, 42) by sensor ( 45A, 45B, 46A, 64B, 46C) controlled traffic lights operated by local processor (47).

REFERENCES:
patent: 3188927 (1965-06-01), Woods
patent: 3302168 (1967-01-01), Gray et al.
patent: 3529284 (1970-09-01), Villemain
patent: 3544959 (1970-12-01), Hawks
patent: 3750099 (1973-07-01), Proctor
patent: 3872423 (1975-03-01), Yeakley

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