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Picture of a tunnel of the Scarborough Subway Extension Toronto
Picture of a tunnel of the Scarborough Subway Extension Toronto © STRABAG Inc.

Client
STRABAG Inc.

Place of performance
Toronto, Canada

Execution period
2022 – 2026

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Intelligent construction site system for the Scarborough Subway Extension Toronto

STRABAG Infrastructure & Safety Solutions has been commissioned to deliver the safety and communication system for the international infrastructure project "Scarborough Subway Extension" in Toronto. As part of this project, the Scarborough subway line will be extended by 7.8 kilometers and three new subway stations will be added.

Following initial technical discussions in January 2021 and intensive negotiations, the contract with Canadian STRABAG Inc. was finalized in March 2022.

This marked the successful international application of the expertise in construction site safety that had been further developed during the “Extension of Vienna’s U2 Metro Line” project.

Components and features of the overall system

  • Central control system (NMS - Network Management System)
  • Personnel tracking throughout the entire construction site area (above and underground)
  • Communication system for the construction team based on Wi-Fi
  • Emergency call phone
  • Alarm system
  • Video surveillance and storage (above and underground)
  • Wi-Fi coverage throughout the entire construction site area

The core of the system is the management software, which enables central control and visualization of all subsystems. All necessary applications are installed on reliable server systems. The remote units are connected via a fiber optic ring, ensuring a fast and secure network connection. Comprehensive data coverage is made possible through the use of a widespread Wi-Fi network.

With the start of tunneling work, the tunnel boring machine (TBM) was also equipped with our systems. This ensured not only the tracking of personnel but also smooth communication on the TBM. After tunneling operations began, new sections of the construction site were gradually integrated into the overall system in line with construction progress, allowing the number and position of the tunneling crews working underground to be displayed at all times. 

To further enhance the safety of personnel and machinery, all components used in potentially explosive areas were required to comply with Canadian regulations for explosion protection.