Air-conditioning of London Underground - reality or dream? E&T
analyses logistics, priorities and engineering solutions of
installing air-conditioners in London Underground. It was
alright in the beginning - the Victorians knew they had to have
some form of air-conditioning in their steam-driven trains. In
fact, conditions were so pleasant in 1906 that placards
proclaimed the underground 'The coolest place in hot weather'.
But that was before deep lines, millions of passengers - and
time. Now temperatures can rise above 30C. In the summer of
2001, about 600 passengers were treated for heat problems when
three trains were brought to a halt for 90 minutes on the
Victoria Line. London Underground now issues tips for passengers
on how to keep cool: 'Carry a bottle of water with you. If you
are feeling unwell, contact a member of staff who will be able
to help.' About 80 per cent of heat generated in London's
underground system comes from braking and motors, another 15 per
cent from other equipment, and only 5 per