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ALASKA- Here is a example of a traffic signal from our 49th state. This one is located in Ketchikan, Alaska. Most of the signals here are vehicle weight activated. This particular signal is mounted into the side of a dock. The controllers for many of the signals in Alaska are located in vaults underground rather than the standard, above ground, cabinets. (Photo by Carla Gruber)

 

 

ARIZONA- Arizona signals are usually, but not always, known for their louvered back plates and longer-than-average tunnel visors. The signals are typically painted black with natural steel poles. If there is a signal mounted on the upright of the mast arm pole, it sometimes is pointed to the left for opposite traffic movements.

Phoenix- This is an example of the older mast arm style of the signals in Phoenix. They are called "double guy" spans, and were quite popular in the 60's and 70's...however, as streets got wider these became obsolete because of their limited weight capacity and span lengths. Phoenix also tended to paint their poles yellow.

Tempe- This ultra modern design and a sleek look, is typical of Tempe's signals. This one also encompasses the 5 light protective/ permissive indications.

 

Mesa- Signals from Mesa, AZ. use hunter green poles and louvered back plates. Also, note the larger internally illuminated sign.
(Photos by Arthur Dock)

 

 

CALIFORNIA- Here is an example of a typical 8" version of a post mounted signal in California. Note the larger back plates and older neon pedestrian signal. This particular intersection is located in Claremont. (Photo by John Rietveld)

 

 

This is an example of a typical mast arm installation in the city of Los Angeles. These usually have longer arms than the older double guys.

This is an example of the older double-guy mast arm popular in most of California in the 60's and 70's.

Another example of an older installation in the city of Los Angeles. (Photos by David DeSantis)

 

 

COLORADO- This is a typical older mast arm installation in Colorado, with the 12" red light and 8" yellow and green lights. The newer mast arm installations use all 12" lenses in a yellow signal with black doors. Some newer installations are even using back plates. This one is in Ft.Collins at Drake Rd. and Stover St.

This is an example of a span wire installation at a pedestrian crossing. These are the oldest type of installations, with all yellow painted signals.
(Photos by Matthew Salek)

 

 

HAWAII- Typical Hawaiian intersection showing signals without back plates. The location is HI 80 in Wahiawa on Oahu (near the north end of H2). (Photo by Mark Furqueron)

 

 

IDAHO- Idaho typically uses the same upright standard with two mast arms at right angles for the two opposing directions of traffic. This allows for fewer large poles to install, and to get knocked into by errant motorists! This one is located in Pocatello, ID.(Photo by John Rietveld)

 

 

NEVADA- Nevada's signals all use the monotube straight arm with all 12" mounted signals. Usually at least two are overhead and one on the support post. They all have louvered back plates due to the strong winds there. This example is on the Nevada-California border at Primm, NV.(photo by John Rietveld)

 

 

NEW MEXICO- New Mexico has always been the only western state to exclusively use the horizontally mounted signal. Along with it's neighbor to the East- Texas, the signals are usually painted yellow, and use all 12" indications. Some intersections use multiple horizontal heads on the mast arm. Some even have the five light left turn signals on these as well. (Photo by Mark O'Neil)

 

 

UTAH- Utah's signals are primarily in pairs overhead only..there aren't any side mounted positions. They use a mixture of black and yellow painted units. Most have back plates.(Photo by John Rietveld)

 

 

WYOMING- This is an example of an older style signal in Wyoming. It uses the combo 12" red and 8" yellow/green sections overhead, with the old standard 8" vehicle signal with 12" pedestrian signal on the side. This example is in Sheridan, WY.(Photo by John Rietveld)

 

 

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