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| Re: The Big Swap Of 2012 (R32,R42,R46) (1158701) | |||
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Re: The Big Swap Of 2012 (R32,R42,R46) |
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Posted by Avid Reader on Sun May 27 13:15:23 2012, in response to Re: The Big Swap Of 2012 (R32,R42,R46), posted by TonyG on Sun May 27 12:57:55 2012. Back in the day, there were more Entrance/exits and ventilation grates through the system.The elimination of fare zones at stations that had more then one fare zone also saw the elimination of entrances. Some ventilation grate were sealed. This lead to less air flow and the retention of heat underground. The shrinking of the size of the mezzanines on the IND reduced the volume where hot air could rise to. System Warming! The glaciers in the subways are extinct! |
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