OC Transpo blames computer system glitch for interrupting LRT service Saturday morning

OC Transpo says a computer system problem caused LRT’s lack of service early Saturday morning.

Transit riders took replacement buses due to what OC Transpo initially called a “system-wide communication issue” at 6 a.m. Some services were later restored to the eastern part of the line before full service resumed at 7:30 a.m.

In a Twitter threadOC Transpo said the issue affected the control room’s ability to control the ventilation system in the downtown tunnel and at St. Laurent station.

Ventilation in tunnels is a “safety-critical piece of equipment needed to operate trains,” OC Transpo said.

“As a result, we were unable to launch O-Train Line 1 and R1 bus service was implemented system-wide.”

The transit service said Rideau Transit Maintenance responded quickly to restore service within 90 minutes, but an apology was issued anyway.

“We recognize this is an inconvenience to our customers and apologize for the issues encountered this morning,” OC Transpo said.

This comes just days after Confederation Line maintenance required LRT service to end earlier on some nights. Regular service on the line resumed on Friday.

The work, which included repairing the rails and calibrating the switch heater before winter, was due to be carried out in June, but was delayed due to supply issues.

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