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Old 07-09-2019, 10:21 AM   #1721
HelloBostonHi
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Re: Regional Rail (including North-South Rail Link)

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Originally Posted by Equilibria View Post
I would have expected the issue to be that (at least at Auburndale) the streetside platform can be ADA-accessible without an elevator. Once you do an island or highway-side platform you need one...

The T can make a public case that they don't want to be building more elevators when a more reliable and maintenance-light solution exists.
The lastest design directives require two accessible paths to each platform. So each elevator must be accompanied by either a ramp (preferred, won't break down) or another elevator, so one elevator going out of service doesn't make the station inaccessible. But two elevators per side platform means at least four per station which gets experiensive and makes construction take even longer (because elevators still take ridiculously long in MBTA construction)
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Old 07-10-2019, 04:08 PM   #1722
F-Line to Dudley
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Re: Regional Rail (including North-South Rail Link)

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Originally Posted by HelloBostonHi View Post
The lastest design directives require two accessible paths to each platform. So each elevator must be accompanied by either a ramp (preferred, won't break down) or another elevator, so one elevator going out of service doesn't make the station inaccessible. But two elevators per side platform means at least four per station which gets experiensive and makes construction take even longer (because elevators still take ridiculously long in MBTA construction)
The existing stops all have two egresses at two different overpasses anyway, so it wouldn't fly to delete access points that have been around since 1965 unless the stations had to physically shift positions away from certain overpasses. (e.g. curve avoidance for island construction forcing a shift of several dozen to couple hundred feet, structural blocker on one side only for hitting regulation 800 ft. length, etc.)

The good news is that Newtonville's and Auburndale's platforms already far exceed 800 ft. for the convenience of spanning blocks to their separate exits, so the stations are already stretched out enough to do as ramps without many switchbacks required and definitely without need for elevators. West Newton's a bit more compressed and might be a candidate for stretching between Washington (west) to Chestnut instead of squeezing into just the two sides of the Washington rotary.
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