[an error occurred while processing this directive]
BBC News
watch One-Minute World News
Last Updated: Tuesday, 29 May 2007, 13:00 GMT 14:00 UK
Cooling trials in summer on Tube
Commuter on hot train
Mayor Ken Livingstone warned the trials could take years
A host of new measures designed to cool the Tube network over the summer months have been announced.

But London Mayor Ken Livingstone warned that the 150m investment in heat reduction schemes would "take years to deliver results".

The multi-million pound pilot programme includes using cold water from an underground river at Victoria station.

A new mechanical chiller will also be installed at Oxford Circus station to provide cool air to the ticket hall.

The Mayor said: "London's Tube network is the oldest in the world and its design makes cooling the system extremely difficult.

"Transport for London is pushing forward a programme to tackle the problem of heat on the tube, after the decades of underinvestment."

Industrial fans

Later this year, work will start on a trial at Stockwell station that will involve drilling a borehole to the water aquifer below ground, where cold water will be extracted and used via a heat exchanger to cool warm air.

The warmed water will then be returned to the aquifer.

Temporary portable industrial fans will be trialled at Seven Sisters and Chancery Lane stations this summer to increase air circulation and if successful will be rolled out to a number of stations in 2008.

The 150m expenditure by Transport for London to reduce heat on the network during the summer months is part of an overall 10bn investment programme on the Tube.


SEE ALSO
Tube heat is snow problem
18 Aug 03 |  London
Tube keeps running in heatwave
05 Aug 03 |  London
Cool the Tube and win 100k
16 Jul 03 |  Magazine

RELATED INTERNET LINKS
The BBC is not responsible for the content of external internet sites



FEATURES, VIEWS, ANALYSIS
Has China's housing bubble burst?
How the world's oldest clove tree defied an empire
Why Royal Ballet principal Sergei Polunin quit

PRODUCTS & SERVICES

Americas Africa Europe Middle East South Asia Asia Pacific