Communications: electrical – Selective – Having indication or alarm
Patent
1972-10-04
1980-07-29
Caldwell, Sr., John W.
Communications: electrical
Selective
Having indication or alarm
340 43, 340104, 404 20, G08G 107, G08G 1095
Patent
active
RE0303550
ABSTRACT:
A traffic intersection and flow control system which includes a hexagonally shaped, multilane roadway having radiating, multilane roadways extending outwardly from each corner of the hexagonal roadway. Traffic dividing island means are provided in the hexagonal roadway between each corner of the hexagon and are also provided in the several radiating multilane roadways. The islands and traffic lanes are arranged so that all traffic in the innermost lane (relative to the space enclosed by the hexagon) moves at all times in the same direction which is opposite the direction of movement at all times of traffic in the outermost lane. The islands and lanes are also positioned so that traffic moving in any lane will at no time cross in front of traffic moving in any other lane. Traffic control signals are provided adjacent each corner of the hexagonal multilane roadway for controlling the flow of traffic in three directions through the intersection of the hexagonal roadway with the several radiating roadways.
The traffic control signals preferably used include at least two lamps for producing light of different colors, a louver system associated with each lamp, and cam means for moving each louver system synchronously to direct the light from each lamp in controlled, contiguous sectors.
REFERENCES:
patent: 2114968 (1938-04-01), Nein
patent: 2133157 (1938-10-01), Turner
patent: 2683868 (1954-07-01), McKnight
patent: 3208039 (1965-09-01), Hilliker
Caldwell Sr. John W.
Groody James J.
Laney William R.
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