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:
- Gardiner Expressway from the Queen Elizabeth Way to the Don Valley Parkway – 28 cameras
- Don Valley Parkway from the Gardiner Expressway to Ontario Highway 401 – 17 cameras
- Lake Shore Boulevard from near Parkside Drive to Leslie Street – 17 cameras
- Allen Road from Finch Avenue West to Eglinton Avenue – 9 cameras
Various intersections through the GTA are also monitored including Woodbine Avenue and Steeles Ave. / Ontario Highway 404 , Black Creek Drive and Lawrence Avenue West, Don Mills Road and Overlea Boulevard , and Warden Avenue and Ellesmere Road
The 35 kilometer (22 mi) system consists of:
- 70+ traffic cameras
- 635 vehicle sensors
- 5 overhead changeable messages signs – Gardiner Expressway and Don Valley Parkway
- 4 portable signs
- 121 detector stations (650 loops)
- Remote Traffic Information System (RTIS) – website
- Tail End Warning System – reminder for drives that Allen Road ends at Eglinton Avenue West by using flashing light / sign and display screen on southbound Allen Road at Glengrove Avenue and south of Viewmount Avenue; Advisory overhead sign at Flemingdon Road.
RESCU is linked to the Ontario Ministry of Transportation ‘s Freeway Traffic Management System or COMPASS.