Guess which information I wanted to find out

Anyway...
http://www.tfl.gov.uk/tfl/press-cent...-releases-cont
ent.asp?prID=961

TFL COMMISSIONER REVEALS PLANS TO UPGRADE CIRCLE, DISTRICT, HAMMERSMITH
& CITY AND METROPOLITAN LINES

- Seventh carriage added to all new Circle & Hammersmith & City trains.

- Air-conditioned trains and new energy efficient features to be
delivered.

Detailed plans to upgrade a third of the Tube network over the next
decade and help tackle climate change were announced by the Transport
Commissioner Peter Hendy today.

The Circle, District, Hammersmith & City and Metropolitan lines will get
new air-conditioned trains from late 2009, together with a new
signalling system and renewed track.

The improvements will bring about faster, more frequent services along
with improved reliability, customer information, accessibility and
enhanced safety and security.

Trains on the Circle and Hammersmith & City lines will increase in size
from six to seven carriages, an overall capacity increase of 17 per
cent, as will those on the District line between Edgware Road and
Wimbledon.

Mayor of London Ken Livingstone said: "The upgrade of these lines is the
next stage of Transport for London's (TfL's)investment in the renewal
and improvement of London Underground.

"This upgrade will be felt by passengers every day, who will benefit
from air-conditioning and extra space on the trains.

"It will also deliver major energy efficiencies which will reduce energy
costs and make a positive contribution towards reducing London's CO2 use
and tackling climate change."

The improvements are part of TfL's UKP10bn Investment Programme, to meet
London's transport needs now and in future.


TACKLING CLIMATE CHANGE
The work will be undertaken by Metronet Rail SSL and is the biggest
single package of improvement works planned on the Tube under TfL's
investment plans.

London Underground (LU) announced that it is in the early stages of
investigating increasing the power supply on the sub-surface network
from 630v to 750v - the same as the National Rail network.

This would deliver even greater energy efficiencies and would also
contribute towards the reduction of heat levels on the sub-surface
network.

The new trains will also have regenerative braking which means they will
use 20-25 per cent less energy than current trains on the sub-surface
network, making a real contribution towards tackling CO2 emissions.


LONGER CARRIAGES
Regenerative braking works by recycling power production from the action
of the train braking and puts it back in the power network.

This is already a feature on Central, Northern and Jubilee line trains.

Transport Commissioner Peter Hendy said: "This is the biggest single
package of improvements for these lines since they opened in 1863,
running over the same route from Paddington to Farringdon they do today.

"Over one million people use these lines each day and they will all
benefit.


SHORTER JOURNEY TIMES
"All lines will get new trains, with the Circle, Hammersmith & City line
and part of the District line, which serve some of the busiest sections
on the Tube, getting new longer seven-carriage trains."

LU Managing Director Tim O'Toole said: "The new trains will also have
air conditioning and deliver more reliable and comfortable journeys for
passengers.

"Shorter journey times will be delivered through a combination of track
improvements, a new signalling system and reduced boarding times at
stations.

"A common train fleet for all these lines will help us deliver a better
service to passengers.

"It will provide more robust and reliable trains, with more integrated
and flexible services on all of the Circle, District, Hammersmith & City
and Metropolitan lines."
ENDS


NOTES FOR EDITORS
- TfL is investing UKP10bn over the next five years to improve and
expand London's transport network, more than half of that in the Tube

- Metronet Rail SSL is responsible for the renewal and maintenance of
Circle, District, Hammersmith & City, Metropolitan and East London lines

- Hammersmith & City and Circle lines trains (C-stock) are presently
made up of six carriages but will increase to seven carriages when the
new rolling stock is delivered. C-stock trains also operate the District
service between Wimbledon and Edgware Road

- Metropolitan line trains will remain at eight carriages while District
line trains (D-stock) will increase to seven carriages from their
present six carriages but the overall train length will remain virtually
the same

- Metronet Rail SSL has awarded the contract to build the new
sub-surface fleet to Bombardier Transportation in Derby who will deliver
a total of 190 trains

- To deliver the additional seventh carriage, LU has exercised a
Specified Right under the PPP contract with Metronet Rail SSL

- The new 190-strong train fleet, which will be common to all
sub-surface lines, will be fully air-conditioned with CCTV throughout
and walk-through gangways between carriages. The trains will be built by
Bombardier in Derby and will be delivered between late 2009 and 2015.
There will be dedicated spaces for wheelchair users and those with
luggage and prams. The biggest accessibility improvement is that access
to the train carriage will be at precisely the same height as the
platforms allowing ease of access to and from the train