"Neil Williams" wrote in message

On Mar 31, 2:24 pm, "alexander.keys1"
wrote:

A more realistic danger would be a power failure, resulting in a
crush- loaded train being stuck in a tunnel without ventilation and
unable to be evacuated, as LU tunnels are too narrow for side doors
to be used,

That would be why LU stock has end doors, no? As, for that matter,
does the LOROL stock being discussed.

Apart from which, 378s don't go through (m)any narrow single tunnels.