Road Emergency Services Communications Unit

The Road Emergency Services Communications Unit (RESCU) is a traffic management system used by the City of Toronto on city managed highways.

The system is used to monitor traffic on: Various intersections through the GTA are also monitored including Woodbine Avenue and Steeles Avenue / Ontario Highway 404, Black Creek Drive and Lawrence Avenue West, Don Mills Road and Overlea Boulevard, and Warden Avenue and Ellesmere Road.

The 35 kilometres (22 mi) system consists of: RESCU is linked to the Ontario Ministry of Transportation's Freeway Traffic Management System or COMPASS.

Changeable Message Sign (CMS) on northbound Don Valley Parkway, part of the RESCU traffic management system. The CMS in Toronto are being replaced by a walk-in variation.