Extension of the passenger platform at the Scarborough GO station meant the station could accommodate GO Transit’s longer, twelve-car passenger trains. Improvements to the platform and construction of a pedestrian tunnel equipped with elevators made the station fully accessible to all transit users. Rail traffic had to be maintained throughout the construction of the twenty-metre tunnel. As a result, the tunnel was constructed out of pre-cast sections installed between 9:00 pm on Friday and 6:00 am on Monday on three consecutive weekends, with full-service resuming each Monday morning. The tunnel work entailed a reconfiguration of the parking lot, which resulted in additional parking spaces for commuters, and the drainage at the site was improved to prevent flooding of the facilities.
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Key Features
- Platform extension to fit 12-car passenger train including steel roof canopy and mini platforms.
- Pedestrian tunnel (width 3660 mm) complete with stairs, elevators, platform shelters and mini platforms.
- Parking Lot reconfiguration
- Stormwater management and drainage
This project includes Design and Contract Administration for making the station fully accessible and to accommodate 12-car service at the Scarborough Station.
The first phase of the project was the lengthening of the island and side loaded platforms, including drainage improvements, lighting and communication installations. A stormwater management system was developed for the site to ensure that the flow capacity of the existing ditch system was not exceeded.
The second phase of the project was the construction of a new tunnel and upgrading the existing tunnel. The work required reconfiguration of the existing parking lot, and additional spaces.
There extensive coordination of the project work with CN to ensure that a corridor was protected for the future fourth track and the fiber-optics infrastructure installation. Approval was obtained from CN and the City of Toronto was approached for a site plan approval.
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The Scarborough GO Transit Station along the Oshawa Corridor, Ontario, manages not only railway traffic but also high pedestrian volume. Pedestrians previously accessed the two platforms using the single, east underground tunnel to cross below the four sets of railway tracks servicing the station.
With the existing tunnel frequently used to capacity and not handicapped accessible, Regional Transit Authority Metrolinx determined that a second tunnel was need to improve passenger service, as well as provide barrier-free access to the platforms. A second tunnel was planned and constructed approximately 30 metres west of the existing tunnel crossing.
- Platform extension to fit 12-car passenger train including steel roof canopy and mini platforms.
- Pedestrian tunnel (width 3660 mm) complete with stairs, elevators, platform shelters and mini platforms.
- Three submersible pumps and forcemains.