[erikpukinskis]

Seems odd... Just replace one seat per car with an air conditioner?

[foldr]

Adding AC to the trains would just make the tunnels even hotter and make the problem worse.

[sithadmin]

I'm wondering if fitting the station with a wall or glass curtain between the tracks and the platform (with sliding doors to let people in/out) could help mitigate this effect. See the MTR in Hong Kong for an example of what I'm talking about.

[dba7dba]

Subway system in Seoul also has glass partition between the platform and the tracks.

This offers 2 distinct improvements for passengers.

1. noise/dust mitigation: One can sweep the platform floors all you want, but dust from the track will always get to the platform. By installing the glass partitions, general atmosphere of the platform is just more pleasant.

2. less space for AC to cool: It's impossible to cool ALL of the space of a subway system, from miles of tracks to the platform. By installing the glass partitions between tracks and platforms, AC at the subway stations only has to cool the platform.

I heard NYC subway engineers say they can't install the glass partitions because the subways are not capable of stopping at a particular spot. This is required for the glass partitions to be installed.

[foldr]

I don't think it would help in the long run. The tunnels would keep getting hotter, and the AC in the trains would have to work harder and harder.

[stuaxo]

The problem is a lot of the tube stations are on curves, so each would need completely custom doors.