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Old 09-07-2016, 12:43 PM   #761
stick n move
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Re: Gov't Center Station Rebuild

I think Boston should take the lead for subway systems in America and enclose the stations with glass doors that only open when a train pulls up. It allows the stations to stay air conditioned. Obviously it would take an insane amount of money to retro fit all of the stations-money we don't have, plus in Boston it would go 47x over budget, but I can dream.

Maybe just start at the busiest, most important stations, and work your way back from there over the years.

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Old 09-07-2016, 12:49 PM   #762
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Re: Gov't Center Station Rebuild

Oh god, not the platform screen doors debate again. We've hashed this out extensively before.

- Insane upfront costs
- Little to no gain at all in terms of service/performance
- Excessive amounts of maintenance required
- Rolling stock would have to be entirely standardized
- Signaling would have to be entirely upgraded

No. Just no.

We have sooooooo many more problems in Boston to fix before we do PSDs.
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Old 09-07-2016, 12:51 PM   #763
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Re: Gov't Center Station Rebuild

ok
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Old 09-07-2016, 03:32 PM   #764
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Re: Gov't Center Station Rebuild

Subways should take advantage of the thermal mass of their tunnels, too.

On cool(er) summer nights, in particular, it'd pay to exhaust air from hot areas and pull in cool air from outside or that has been moderated by being drawn through tunnels
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Old 09-07-2016, 05:27 PM   #765
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Re: Gov't Center Station Rebuild

Quote:
Originally Posted by stick n move View Post
I think Boston should take the lead for subway systems in America and enclose the stations with glass doors that only open when a train pulls up. It allows the stations to stay air conditioned. Obviously it would take an insane amount of money to retro fit all of the stations-money we don't have, plus in Boston it would go 47x over budget, but I can dream.

Maybe just start at the busiest, most important stations, and work your way back from there over the years.


The WMATA's subway stations in Washington, DC don't have the glass doors, but they DO have air conditioning in them. Probably because some of the stations are close to 200 feet underground.
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Old 09-12-2016, 10:48 AM   #766
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Re: Gov't Center Station Rebuild

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The WMATA's subway stations in Washington, DC don't have the glass doors, but they DO have air conditioning in them. Probably because some of the stations are close to 200 feet underground.
Seems like they could just air condition the space without the need to install doors like that at all. If they are worried about cold air going down the tunnels, then just install blowers to create an air curtain at either end of the station and air condition the entire station
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Old 09-12-2016, 01:53 PM   #767
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Re: Gov't Center Station Rebuild

There is no A/C in the WMATA underground Metro stations. Some stations do have fans that circulate the air, and as stations can be very deep (200 feet underground) the air in the tunnels is warmer than the outside air in winter, and cooler in summer.
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Old 09-16-2016, 12:06 PM   #768
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Re: Gov't Center Station Rebuild

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Originally Posted by stellarfun View Post
There is no A/C in the WMATA underground Metro stations. Some stations do have fans that circulate the air, and as stations can be very deep (200 feet underground) the air in the tunnels is warmer than the outside air in winter, and cooler in summer.

There IS a/c in the stations there, unless it was turned off.
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Old 09-16-2016, 12:16 PM   #769
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Re: Gov't Center Station Rebuild

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Originally Posted by stellarfun View Post
There is no A/C in the WMATA underground Metro stations. Some stations do have fans that circulate the air, and as stations can be very deep (200 feet underground) the air in the tunnels is warmer than the outside air in winter, and cooler in summer.
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There IS a/c in the stations there, unless it was turned off.
"Metro's underground stations are cooled by chilled water air handling units, or "chillers," not air conditioning. The chiller system is designed to reduce temperatures in stations for rider comfort. The hotter the outside air, the less the chillers will be able to do. By design, if the ambient outdoor temperature is 91 degrees, the chillers will bring the station temperature to 85 degrees."

So you're both sort of right. Link
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Old 09-18-2016, 01:48 PM   #770
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Re: Gov't Center Station Rebuild

Like some of the tall office towers.

One WTC, for example, uses cooling towers that are installed on the building's roof. to cool its offices & floors.
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