Quote:
Originally Posted by jsbertram
This just got me wondering if the original station design (sitting on North Rd with a wye opening to the south) was simply given a 1/4 turn and relocated to where we have Lougheed Stn today.
This might explain a lot of the unusual design elements - a 3rd platform; unusual station interlockings to go from two tracks on one side the station, to 3 tracks in the station, to 4 tracks on the other side of the station; the old design for the twist-over tracks to North Road (now replaced with —-track and wrong-railing on North Road between two stations).
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There must have been customization for the east-west orientation, because a previous iteration was a single north-south centre platform.
And even in those diagrams, there was a lot of passage through various switches.
Maybe the change to east-west forced the need to have short-turns at the station (and added complexity)?
See Section 3.3 SkyTrain to SkyTrain connectivity (page 129 of 424) at the link here:
Quote:
Originally Posted by officedweller
FYI - M-Line background information here:
Note the "Connectivity Report" which identifies issues dealing with interlining.
Note, however, that the report dates back to when the system design
called for a north-south Lougheed station with a south facing wye
(to enable a one seat ride to Columbia from Coquitlam and one transfer to Surrey),
as opposed to the east facing wye that was actually built.
http://www.llbc.leg.bc.ca/public/Pubdocs/bcdocs/329621/SkyTrainReview.pdf
Map from the above report (showing a N-S Lougheed Station) - note that Grandview Station was subsequently deleted in its entirety and this shows the original VCC Station under Broadway rather than on the flats.
There's also another report that analyses the interlining in detail with different operational scenarios but I can't seem to find it. |
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