Quote:
Originally Posted by Vancity
there a reason why?
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Expo and M Line are running different rolling stock with different dimensions. Mark 1 cars are shorter with 2 doors while the Mark II/III cars are longer with 3 doors. This makes having platform screen doors practically impossible.
As for the Canada Line, they are also out of the question until all the stations are extended to 50m and all the trains are fitted with a C car, because the C car will be shorter.
To elaborate, having different rolling stock isn't a problem as long as the cars are near identical in length and all have the same number of doors. This is the key to allowing flexibility in operations. For example, MTR runs both M-stock and C-stock trains on their Kwun Tong Line. On the West Rail line, MTR runs 7 or 8 car trains depending on time of day.