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Study Overview

The primary focus of this study is to confirm the rehabilitation needs of the corridor. In parallel, the study is being completed to confirm the long-term capacity and operational needs so that rehabilitation investments can be made with an understanding of the long-term vision for the corridor. The study limits include Highway 401 from Brock Road to Courtice Road, excluding the portion between Salem Road and Brock Street. The project limits are located within the City of Pickering, Town of Ajax, Town of Whitby, City of Oshawa, and Municipality of Clarington.

A wide range of mainline and interchange alternatives have been developed and evaluated to determine the most appropriate solution. Alternatives have been generated and evaluated based on technical and environmental factors and in consultation with the public, stakeholders, municipalities and government agencies.

Two rounds of Public Information Centres (PICs) have been held during this study to provide the public with the opportunity to discuss the project and provide input to the Project Team. The first round of PICs was held in March 2013, and the second round in November 2014. Refer to the Consultation page for more details.

A Transportation Environmental Study Report (TESR) has been prepared for this study which provides information on the process that has been followed leading to the selection of the Recommended Plan, the environmental effects and proposed mitigation measures, as well as the technical findings of the study. Refer to the EA Process page for more information.