3 ms·
To be fair, that’s been a work in progress for years, and some lines do have AC. It’s not like they haven’t been planning for it at all. IIRC a big difficulty
by iainmerrick 4y ago
To be fair, that’s been a work in progress for years, and some lines do have AC. It’s not like they haven’t been planning for it at all.
IIRC a big difficulty is that the tunnels are extremely narrow, so it’s just difficult to get any extra equipment in there. (I wouldn’t have thought that’s insurmountable, though, so there’s probably more to it than that.)