Traffic Signals Incorporated
Traffic Signals Inc. (TSI) was the short-lived successor of Southern Signals. TSI formed in 1960 when Southern Signals changed the name of Southern Signals to Traffic Signals Inc. They were bought by Singer in 1970.
TSI based their 4-ways off of Sargent Sowell's design. All of their signals used Dzus fasteners for latches and the visor collar was wider than most signals.
TSI made some pedestrian signals. Not very many of them are known to still be in service. Here's a list of TSI pedestrian signals that are known to still be in use:
|Location||City, State||# of Signals||Lens Style||Lens Size||Status|
|Market Street and Marion Street||Athens, AL||2||Walk/Don't Walk||9 inch||Still in use as of July of 2014.|
|Kings Highway and Line Avenue||Shreveport, LA||8||Walk/Don't Walk||9 inch||Still in use as of May of 2014.|
|Kings Highway and Woodlawn Avenue||Shreveport, LA||1||Walk/Don't Walk||9 inch||Still in use as of June of 2014.|
|Dayton Street and Voge Street||West Alexandria, OH||2||Walk/Don't Walk||12 inch||Still in use as of August of 2011. Current status is unknown.|
TSI made an 8 inch Wait-walk signal that used the body of an 8 inch signal. None are known to still be in service.
TSI made a 9 inch pedestrian signal that used a 10x12 rectangular door that held the 9 inch lens. The backs of them looked like regular TSI heads except they were more elongated. TSI also made 12 inch pedestrian signals and they used standard TSI 12 inch sections.
TSI made internal and external controllers. The internal controllers could only be used on the 4-ways.