This page features an embedded Google Map of SRPEDD's Signalized Intersections. Click on an icon to view level of service (LOS), volume, crash and delay data as well as general information for each of the map's 365 intersections. To access a glossary of the terms used in the database please see below.
Jurisdiction – entity that controls and maintains the signal. Local denotes town owned, and MHD denotes MassDOT Highway Division owned.
Type – Can be one of three categories of signal that control the traffic flow at an intersection:
- PT (Pre-Timed) – a Pre-Timed signal will have a fixed timing at all approaches.
- SAC (Semi – Actuated) – A Semi-Actuated signal has a constant green phase for the main corridor of an intersection and vehicle sensors installed on the side streets as well as pedestrian signals at all approaches to allow side street/pedestrian traffic to move as needed.
- FAC (Fully-Actuated) – A Fully-Actuated signal is one that has vehicle sensors and pedestrian signals on all approaches to allow all approaches to move through the intersection with the least amount of delay possible.