An adaptive signal control system in Toronto, Canada reduced vehicle emissions by 3 to 6 percent and lowered fuel consumption by 4 to 7 percent.

8-12 November 1999

Summary Information

This conference paper highlighted ITS and adaptive signal control techniques deployed in Toronto, Canada over the last 10 years.

Measurable energy and environmental benefits were reported during the following project.

Deployment of a SCOOT Signal System in Toronto

SCOOT (Split Cycle Offset Optimization Technique) was an adaptive signal control system that quickly updated signal timings to meet the needs of changing traffic volumes and patterns. Toronto conducted a demonstration project to compare SCOOT to fixed (i.e., predetermined) signal timing control plans.

The results indicated the adaptive signal control system decreased fuel consumption by 4 to 7 percent and reduced harmful emissions by 3 to 6 percent.

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ITS Technology Meeting Municipal Needs - The Toronto Experience

Author: Greenough and Kelman

Published By: Paper presented at the 6th World Congress Conference on ITS. Toronto, Canada

Source Date: 8-12 November 1999


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Typical Deployment Locations

Metropolitan Areas


traffic signals, adaptive signals

Benefit ID: 2007-00361