3) Probably not a very good idea, but do as they do in New York and
sometimes in Bristol. Use the older vehicles at night and save the
better
ones for the day.

This all costs money (or more money) of which there is no incentive for
many
TOCs to provide. Connex and other London commuter TOCs will not get any
significant revenue from employing armies of staff on trains/providing
CCTV
and monitoring it, as they have a captive market who have no choice but to
use their services.


There would not be a high charge for the latter, however the HSE would have
something to say. On average, every year LU pays £10million 'correcting'
vandals' work. Surely they could find a building and link up the trains for
about £100million. Or, have someone in the back of the train and make use of
the current platform monitors.