Regional Traffic Management System

The PACTS Regional Traffic Management System (RTMS), started in 2008, has the goal to optimize the current roadway network through traffic signal management and to provide direct access for remote management and monitoring of the traffic signals in the PACTS region to improve mobility and capacity along major corridors.

The objective is to provide continuity and assure that traffic pattern consistencies are maintained throughout the commuter corridor and that traffic movements occur in the most efficient manner.

PACTS regional long-range plan, Destination 2040, includes a strategy on the optimization and coordination of traffic signals. This has been and remains a high priority approach to capacity management and intends to make the most efficient and effective use of the PACTS region’s signal investments in the PACTS RTMS network.

 PACTS adopted a RTMS Policy in December of 2010 and provided initial funding for this program which led to a Phase 1 study in 2009. 

Phase 1 identified eight priority corridors between Portland, South Portland, Scarborough, and Westbrook. 

Another signal study, Phase 2, was completed in 2011 between Saco and Biddeford. 

In 2017, the Phase 3 signal study was undertaken. Phase 3 was divided into two separate projects based on differing needs on the Portland peninsula versus Scarborough and Gorham.

PACTS allocated funding to undertake a system-wide assessment of the nearly 125 traffic signals throughout the RTMS communities of Portland, South Portland, Scarborough, Westbrook, Gorham, Saco, and Biddeford that have not yet been included in the earlier assessments. These communities also have the stated goal to standardize the types of (a) signal heads, (b) signal controllers, (c) hardware and software, and (d) methods compatible with current and future software programs.

Read the PACTS RTM Phase 3 Report, a traffic signal prioritization plan for the 60 intersections in downtown Portland.

Read the City of Portland Traffic Signal Policy and Design Guidance Manual, a  comprehensive resource on traffic signal and intersection design guidelines, policies, and the project development process.

The PACTS Traffic Central Management System Master Plan was completed in October 2022 and includes an inventory of existing network and signal conditions and recommendations for the region. As a part of the master plan development, in October 2021, Sebago Technics developed the interactive mapping tool below (use the "full screen" arrows icon to enlarge the mapping tool).