Edmonton LRT signal woes

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Edmonton LRT signal woes
Posted by SD70M-2Dude on Sunday, November 12, 2017 4:19 PM

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

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Posted by Overmod on Sunday, November 12, 2017 5:16 PM

Well, I did note in the other thread that in European Hell the French are the ...

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Posted by BaltACD on Friday, November 17, 2017 7:36 PM

SD70M-2Dude
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

Is this system supposedly 'dispatcherless' with the computer doing all routing?

         

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Posted by blue streak 1 on Friday, November 17, 2017 8:05 PM

Is the company designing the signal system have anything to do with European PTC  ( ERTMS ? ) ?  Or Denver ?

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Posted by SD70M-2Dude on Friday, November 17, 2017 8:11 PM

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.

Greetings from Alberta

-an Articulate Malcontent

  • Member since
    March, 2013
  • 710 posts
Posted by SD70M-2Dude on Wednesday, December 06, 2017 3:20 PM

Greetings from Alberta

-an Articulate Malcontent

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