Quote:
Originally Posted by aberdeen5698
Sure, because those solutions are so cheap that they won't take any money away from more important transit needs... 
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This is just theory, but the retractable 12" diameter ones people install in driveways cost $2500 each, without including the cost of labor.
Assuming you simply want to prevent people, wheel chairs and mobility scooters from falling into the track, you need to space them wide enough that an adults hand can pass through (so that anyone who sticks their hand through it doesn't get it stuck on the other side) but not wide enough that a child can squeeze through. So maybe 3-4" apart. You need enough to cover two sides of an 80m platform. So 160m = 6300", divide that by 16" and you need 394 of them. So $985,000 per station, not including the labor and other work needed to the station. That is also assuming you wanted all of them to be retractable, in case door or train lengths change.
So all the stations except those with three platforms and the Canada Line would fit the above.
Now if you add the Surrey LRT, the cost for that exceeds the cost of the stops.