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  • Traffic Systems Services Unit (TSSU)
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    Welcome to the Traffic Systems Services Unit Web Site.
    The TSSU Unit is primarily thought of for Chamber testing, New Traffic Signal Turn on, Traffic Signal Inspections, Signal support and Intelligent Traffic Systems support.
General Information Important Dates
Our Citizens' Representative Office is here to help.
Need assistance, information or problem solving regarding a signal? Contact them here.  
Where can you find TSSU?
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Our Salem location is 2 miles north of Downtown at:
2445 Liberty ST. NE, Salem, Oregon,97303

Our Portland location is near I-205, Powell Blvd at:
3700 SE 92nd Ave. Portland, Oregon, 97266 

Daylight Savings Time:
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The federal law that established "daylight time" in the United States does not require any area to observe daylight saving time. But if a state chooses to observe DST, it must follow the starting and ending dates set by the law. From 1986 to 2006 this was the first Sunday in April to the last Sunday in October, but starting in 2007, it is observed from the second Sunday in March to the first Sunday in November, adding about a month to daylight saving time. (See: New Federal Law.)

U.S. Daylight Saving Time Schedule

         2013: March 10 - Nov. 3
         2014: March 9 - Nov. 2
         2015: March 8 - Nov. 1
         2016: March 13 - Nov. 6