Quote:
Originally Posted by BobLoblawsLawBlog
Does anyone know why new Skytrain station platforms are always separated? I prefer when the station has the platform in the middle because it makes things less confusing.
Are divided platforms cheaper?
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It probably depends. We're seeing the limitations of the center-platform model on the Expo Line today, while the side-platforms at least give the option to widen or lengthen the platform at a future date if necessary. However nothing precludes adding a third platform (eg at Broadway) except space on that side of the track.
However not every platform is created equal. The split platform stations are mostly three-level designs, with one escalator and one staircase on both sides, meeting at a mezzanine level which in turn has only one primary entrance, making less faregates needed. But they also have the option to expand their mezzanine levels to cross the road to other developments.
In fact:
http://ca.perkinswill.com/sites/default/files/Transit_2014_Full_Spread_02.pdf
Brentwood station: 8.1 million (22,000sq feet)
Gilmore station: 7.9 million (24,700sq feet)
Canada Line Richmond stations: 6 million each (15,000 sq ft)
Evergreen Line stations: Not disclosed.
Broadway-Commercial transit village: 3 million
Metrotown transit village: 3 million
Note that "transit village" doesn't necessarily mean the station. For reference, the Kingsway Pedestrian bridge is 2.7 million and 140' ft long.
If you want a comparison however scroll down to Scarborough Rapid Transit Centennial College station. 6 Million (27,718sq feet)
And for completeness:
Sound Transit 200th street station: 12 million, 380' foot platform elevated station.