Tualatin-Sherwood Road-ITS Phase 1

Tualatin-Sherwood Road is a major multi-modal arterial road that carries up to 40,000 vehicles per day. It is heavily used and is often congested during peak hours of the day. This project designed and constructed an Intelligent Transportation System (ITS) and traffic adaptive signal system on Tualatin-Sherwood Road from I-5 to Teton Avenue to help improve traffic flow. 

An Intelligent Transportation System (ITS) is a system that uses computer and communications technologies to solve transportation problems in an effort to improve efficiency and safety thereby reducing traveler delay and fuel consumption.

This project was a combined effort among the State, Washington County and the City of Tualatin.

Note: This is phase one of two. Phase two will be from Teton Avenue to Highway 99W.


  • Modifications to 11 traffic signals along SW Tualatin-Sherwood Rd and Nyberg St
  • Communication hardware installed along SW Tualatin-Sherwood Rd from Teton Ave to the I-5 northbound ramp
  • Pan Tilt Zoom cameras installed at five intersections along SW Tualatin-Sherwood Rd (Teton, 95th Ave, 98th Ave, Boones Ferry and at the intersection into Fred Meyer)

To view the locations of the 11 intersections that received this upgrade, click the "Map" option on the right side of this page. The project map also includes a 12th dot located at the northern end of Martinazzi, that represents the City Hall building which is housing the central computer for the new system.