The new line has been plagued with signalling problems since it opened, and the opening date was delayed significantly for the same reasons, but this latest incident is the most serious yet:
http://edmontonjournal.com/news/local-news/lrt-train-goes-down-wrong-track-near-nait-station-as-more-signal-woes-plague-metro-line
Greetings from Alberta
-an Articulate Malcontent
Well, I did note in the other thread that in European Hell the French are the ...
SD70M-2DudeThe new line has been plagued with signalling problems since it opened, and the opening date was delayed significantly for the same reasons, but this latest incident is the most serious yet: http://edmontonjournal.com/news/local-news/lrt-train-goes-down-wrong-track-near-nait-station-as-more-signal-woes-plague-metro-line
Is this system supposedly 'dispatcherless' with the computer doing all routing?
Never too old to have a happy childhood!
Is the company designing the signal system have anything to do with European PTC ( ERTMS ? ) ? Or Denver ?
BaltACD Is this system supposedly 'dispatcherless' with the computer doing all routing?
I believe it is some of both. I know they do have a dispatching office/control centre, but I am not sure exactly how it works. Will ask someone in the know if I get a chance.
The original line was built with a fixed-block signal system, very similar to the CTC that North American freight railroads use. The new Metro Line has a moving block system (the "block" is the distance between trains), and the contractor was also supposed to upgrade the original line with moving blocks too, and make the new and old signal systems work together. So far all their attempts have been a abysmal failure.
Level crossings are also connected to the signal system, as several stations are adjacent to them. The crossings are supposed to sense the train making its station stop, and only activate just in time before the train pulls away and enters the crossing. This portion of the system has been a failure too, with the crossings regularly activating too soon, or sometimes not at all.
The saga continues:...
http://edmontonjournal.com/news/local-news/we-were-the-guinea-pigs-council-issues-ultimatum-to-metro-lrt-contractor
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