Setting the stage for safer, more efficient traffic flow
This section of road, soon to be expansion of Highway 11A, will eventually become a four-lane divided roadway between Gaetz Avenue (Highway 2A) and the Queen Elizabeth II Highway. It will become part of the city’s North Highway Connector (NHC) expressway ring road, therefore, our design required consideration of future expansion to an ultimate six-lane configuration.
We completed a function design for two future interchanges and future grade separated rail crossing. A key component of this assignment was developing both immediate and long-term deep utilities (water, sanitary and storm) and shallow utility alignments through the entire corridor. This planning and design work will allow servicing to undeveloped surrounding areas—while considering both the short term four lane and long term six lane roadway configurations. Part of the preliminary design included a comparison analysis between expanding the existing signalized intersections or implementing modern multi-lane roundabouts. The review determined roundabouts at both intersections would result in less frequent and less severe collisions while providing better peak hour traffic conditions.
The preliminary design was completed in March 2018, with the construction valued at an estimated $42 million for the expansion to four lanes and $134 million for the future ultimate six lane configuration.
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