4 ms·
AC will only make the problem worse in the long term. Picadilly got AC because it has above-ground sections.
by pitaj 1y ago
AC will only make the problem worse in the long term. Picadilly got AC because it has above-ground sections.
- cherryteastain 1y agoYou can redesign the signalling systems etc to work at even 40C, plenty of countries do it. You can't redesign humans to feel comfortable inside a stuffy carriage at 35C.
- crote 1y agoSure, but that means the stations will also have 40C air. Can the humans handle that? And it's going to be 42C the next year, 44C the year after, and so on...
- raattgift 1y agoWhat do you do if some incident halts full trains (possibly depowering them but for things like emergency lighting) near the midpoints of longer sections of 40 degC deep tunnels?
- thyristan 1y agoYou can survive a few hours at that temperature, so not an immediate catastrophe. You should be still able (though not comfortable) to walk to the next emergency exit or station.
- ReptileMan 1y agohow many times has this scenario happened in last 20 years?
- sealeck 1y agoThis is exactly the kind of thinking that lead to https://en.wikipedia.org/wiki/King%27s_Cross_fire https://en.wikipedia.org/wiki/King%27s_Cross_fire In safety engineering you do have to think about low-probability events.