now i know without a shadow of a doubt its my fault

No passengers were on board the Alstom Citadis Spirit train when it lost a wheel and came off the track. Here's a timeline of how we got to this point. 'It's not a case that we need to eliminate those curves, and it's not the situation that we could have avoided those curves.'

We had to connect a lot of infrastructure together,' he said. 'If we had a lot of engineers designing the light rail system, we would make it straight. 9, 2021, one day after the axle of this out-of-service LRT train dislodged from the rail. Those issues include consistent contact between the wheel and a guard meant to prevent derailments, as well as a lack of lubrication on top of the rails.Ĭrews walk along the Confederation Line in Ottawa on Aug.

What are they?Īs for the forces that are apparently too strong for the parts to withstand, the city says it has just begun implementing solutions to longstanding issues around the track's tightest curves.

Troublesome LRT restraining rails are on the move.

Ottawa's big LRT fix is redesigning train parts.

Progressive wear is causing fatigue in the axle shaft, bearing and hub assembly - parts that connect the wheels to the train body - and that, he said, will be solved by a more resilient and durable hub. But Richard Holder, the city's director of engineering services, said on Friday 'several factors' are involved. OC Transpo, line builder Rideau Transit Group (RTG) and train manufacturer Alstom still have not explicitly outlined the root cause. What we do know is that bearings have caused problems time and again, including the latest Confederation Line shutdown, now 21 days and counting.

Partial LRT service expected to resume Tuesdayīut why did the bearing fail in the first place? Two years on - after a four-week provincial public inquiry, several TSB inquiries, and numerous consultancy contracts - we still don't know for sure.

City has a 'final fix' for the LRT but hasn't ID'd root cause.

The train made it just 90 metres out of the station before a wheel was severed and the vehicle derailed. The Transportation Safety Board (TSB) would later describe the cause as a 'previously undetected catastrophic roller bearing failure.' On a sunny Sunday afternoon exactly two years ago, a technician identified burn marks on a brake disc on one of two cars on a Confederation Line LRT train.Īfter the issue was seen to, the train was given the all clear and sent on its way - without anyone ever checking the other car. The first clue something was wrong was the burning smell.

Now i know without a shadow of a doubt its my fault