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Sammamish Town Center (not licensed)
A traffic counter device sits on the side of the road with its cables reaching out into the street.

Citywide Traffic Counts

Traffic Counts

The City of Sammamish collects traffic information on major roadway segments. These include daily volume counts and intersection turning movement counts (TMCs).  The city conducts these counts during the spring. This information supports various city activities, including:

  • Traffic modeling updates
  • Assessment of future project needs 
  • Traffic safety and operational improvements

Drivers should expect to see tubes placed on roadways when these are being conducted. These will not impact traffic flow. A map showing historical average daily traffic (ADT) at several locations throughout the city where these counts are conducted is linked below. 

ADT Map 2015 2024