The Period from the completion of all outstanding New
Works schemes has seen both expansion and contraction of the London Underground
network:
The Metropolitan line was electrified from Rickmansworth
to Amersham, including the branch from Chalfont & Latimer to Chesham
from the 12th of September 1960. The section of line north of Amersham was
transferred to the control of British Railways and the MET trains ceased
to serve stations north of Amersham from this time. New stock was built for
the MET to replace the remaining loco hauled and EMU stock of F, T and CO/CP
types. Designated A stock (pictured below) it was made up of four car sets
formed of a pair of driving motor cars with two intermediate trailers between.
The stock had the now standard unpainted aluminium alloy bodies and ran in
eight car formations on the MET and four cars on the East London Line. It
remains in service at the time of writing having been heavily
refurbished.
The construction of the Victoria tube line from Walthamstow
Central to Brixton was authorised in the early 1960's. It was opened in stages
with the section from Walthamstow to Highbury & Islington being first
on September the 1st 1968 with the section from Highbury & Islington
to Warren Street following exactly three months later. On the 7th of March
1968 the line opened from Warren Street to Victoria but the final section
from Victoria to Brixton did not open for over two more years, finally being
ready for business on July 23rd 1971. The Victoria line stock (1967 stock)
was a fresh design for the Underground and featured a more flush bodied aluminium
alloy car with better lighting and ventilation. Its most startling feature
was automatic train operation which had been trialed on sections of the District
and Central lines. With this equipment the driver virtually 'supervises' the
trains operation as acceleration and braking is undertaken by computer control.
The driver still has the facility to override the ATO equipment if it is
deemed necessary. Units of similar style designated 1972 stock were built
for use on the Bakerloo and Northern line but do not have ATO.
The Piccadilly extended west from Hounslow West station
(which was fully rebuilt at an slightly different location) to Hatton Cross
on July 19th 1975. The line was further extended with a loop line serving
a station for Heathrow Airport terminals 1, 2 & 3 on the 16th December
1977. A station was added on the loop to serve the terminal 4 building at
a much later date. Connected with this extension the Piccadilly received
brand new units of 1973 stock (pictured below) of similar style to the 1967
and 1972 stock units but without ATO and with a new type of electric braking
system.
The Jubilee Line was originally to be called The Fleet
Line when envisaged but the name was changed to commemorate the silver jubilee
of Queen Elizabeth II in 1977. The line itself involved new construction
of tube line from Baker Street to Charing Cross. Form Baker Street the Jubilee
took over the line to Stanmore previously operated by the Bakerloo. The line
opened in full on May the 1st 1979. Brand new units were introduced to the
line from May 1984.
The Bakerloo was cut back from running to Watford Junction
in the early 80's and terminated at Queens Park. This situation continued
until the decision was made to run the service as far as Harrow & Wealdstone
from 1984.
The underground has closed three branches since the war.
The first was the District line one from Acton Town to South Acton which
last ran on February the 28th 1959. Both the lines from Holborn to Aldwych
(Piccadilly) and Epping to Ongar (Central) saw their last passengers on September
the 30th 1994. The reason given for closing both lines was a poor level of
patronage.
The London Underground continues to evolve; new stock
is being delivered to many lines to operate them as they begin the 21st century
and an extension of the Jubilee Line from Westminster to Stratford was opened
just before the start of the Year 2000.