Passenger Assistance Intercom (PAI) Upgrade Project

Summary

The Passenger Assistance Intercom (PAI) Upgrade project involved the design, supply, and integration of an advanced IP-based Passenger Assistance Intercom System across subway stations. This project aimed to enhance passenger safety, accessibility, and communication through the implementation of modern intercom devices, integrated displays, and compliance with safety and accessibility standards. By replacing the legacy PAI system with a fully integrated digital system, the project ensured seamless operations, high system reliability, and enhanced support for passengers, including those with disabilities. The successful delivery of this project reflects a commitment to modernizing transit systems while minimizing disruptions for staff and passengers during implementation.

WhereCanada
When2018–2020
TypePassenger Assistance Intercom System Upgrade
SolutionsIntercom Devices, Digital Communication System, Third-Party Integration

Functional Highlights

  • Integrated IP Audio PAI System:
    Installed across 75 subway stations, providing clear and reliable communication.
  • Advanced Intercom Devices:
    Over 1,000 IP-based Passenger Assistance Intercom devices deployed.
  • Integrated LCD Displays:
    Passenger Assistance Intercoms equipped with integrated LCD displays for additional visual communication.
  • Accessibility Features:
    Fully compliant with the Accessibility for Ontarians with Disabilities Act (AODA) and ASME A17.1/CSA B44 Safety Code for Elevators (2013).
  • Audio Frequency Induction Loops:
    Ensured compatibility for passengers with hearing aids.
  • System Integration:
    Seamlessly integrated with the existing communication system for centralized operational control.
  • Voice Recording and Archiving:
    Added call archiving capacity for up to 7 years, supporting operational accountability.
  • Redundant System Design:
    Dual-server redundancy to ensure uninterrupted operations during potential failures.
  • Smooth Transition:
    Managed the migration from the legacy system to a modern IP-based digital intercom system.
  • Training Programs:
    Delivered comprehensive training for maintainers and operators to ensure efficient system management.
  • Impact Minimization:
    Efficient project management limited disruptions to station staff and passengers while maintaining project schedules and budgets.