OC Transpo has postponed pre-trial testing for the O-Train East Extension into Orléans, shifting the timeline from October to November. The delay stems from safety-critical software issues identified by subcontractor Hitachi.
Hitachi's software glitch pushes pre-trial runs to November
The shift in schedule comes after Hitachi, a train-control software sub-contractor to East-West Connectors, identified flaws in the system's safety-critical software. According to a memo from OC Transpo general manager Rick Leary,the software requires reprogramming before any pre-trial running can commence. This technical hurdle has forced the agency to move its forecast from October to November to ensure a staged approach to system validation.
The pre-trial phase is a critical precursor to the broader 21-day trial running period. While the delay is a setback, Rick Leary emphasized that prioritizing passenger safety over the calendar is the only viable path forward. The agency intends to hold its contractors accountable for the delivery of a reliable system, as the software must be fully updated and verified before trains can safely navigate the new extension .
The five-station stretch from Blair to Trim
The O-Train East Extension is designed to expand Line 1 from its current terminus at Blair Station, adding five new stops to serve the east end. These include the Montreal, Jeanne d'Arc, Convent Glen, Place d'Orléans, and Trim stations. as reported, the project reached a milestone of substantial completion on March 4 , yet the transition from construction to operation remains stalled by these technical failures.
This expansiion is part of a broader effort to integrate Orléans more deeply into the city's rapid transit network. The current testing phase is intended to mirror the commissioning processes used for the launches of Lines 2 and 4, which OC Transpo describes as successful. However, the gap between the March completion date and the current software delays suggests a difficult road to final commissioning.
Cartridge bearing failures and the struggle for 50 trains
Beyond the software issues, OC Transpo is grpapling with a shortage of available rolling stock. The report notes that the 21-day trial running period was previously delayed due to a "spalling issue" involving the cartridge bearing assembly of the vehicles. This mechanical failure has limited the number of trains available for both existing service and extension testing.
To maintain current operations on Line 1 while simultaneously testing the East Extension, Rideau Transit Maintenance (RTM) must provide 50 trains every weekday. While Rick Leary stated that vehicle availability has improved,the system is still playing catch-up. RTM has advised that two new trains will be available in November, with another two expected in December, while residents continue to see only eight trains every weekday during ongoing testing.
The gap between March 4 completion and actual service
Despite the "substantial completion" achieved on March 4, several critical elements remain unfinished. According to the memo from Rick Leary, work is still ongoing regarding the traction power substation that supplies the trial system,though power distribution and connection have reportedly improved.
Several specific details remain unverified or absent from the current reporting. It is unclear exactly what the "safety-critical" software error entails or if the reprogramming by Hitachi will lead to further cascading delays in the 21-day trial period. Furthermore, while OC Transpo mentions holding contractors accountable, the report does not specify if finncial penalties are being levied against East-West Connectors or Hitachi for these setbacks.
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