The London congestion charge is a fee for some motorists entering the Central London area. The organisation responsible for the charge is Transport for London (TfL). The fee was introduced on 17 February 2003. The daily charge must be paid by the registered keeper of a vehicle that enters, leaves or moves around within the congestion charge zone between 7 am and 6 pm (previously 6.30 pm), Monday to Friday. Failure to pay the charge means a fine. In February 2007, a western extension of the congestion charge came into effect, but this was ended in December 2010.
The scheme makes use of CCTV cameras to record vehicles entering and exiting the zone. Cameras can record number plates with a 90% accuracy rate through automatic number plate recognition (ANPR) technology. There are also a number of mobile camera units which may be deployed anywhere in the zone. The majority of vehicles within the zone are captured on camera. The cameras take two still pictures in colour and black and white and use infrared technology to identify the number plates. These identified numbers are checked against the list of payees overnight by computer; unrecognised plates are checked manually.
Henry Charles Beck (4 June 1902 – 18 September 1974), known as Harry Beck, was an English technical draughtsman best known for creating the present London UndergroundTube map in 1931. Beck drew up the diagram in his spare time while working as an engineering draftsman at the London Underground Signals Office. London Underground was initially sceptical of Beck's radical proposal, an uncommissioned spare-time project, but tentatively introduced it to the public in a small pamphlet in 1933.
Beck's approach to the map was to remove all geographical content except the River Thames so that the focus could be on the arrangement of lines and stations and to enable the central area to be expanded map. Beck first submitted his idea to Frank Pick in 1931 but it was considered too radical because it didn't show relative distances between stations. After a successful trial of 500 copies in 1932, distributed via a select few stations, the map was given its first full publication in 1933 (700,000 copies). It was immediately popular, and the Underground has used topological maps to illustrate the network ever since.
Image 3The multi-level junction between the M23 and M25 motorways near Merstham in Surrey. The M23 passes over the M25 with bridges carrying interchange slip roads for the two motorways in between.
Image 12Arguably the best-preserved disused station building in London, this is the former Alexandra Palace station on the GNR Highgate branch (closed in 1954). It is now in use as a community centre (CUFOS).
Image 21London Underground A60 Stock (left) and 1938 Stock (right) trains showing the difference in the sizes of the two types of rolling stock operated on the system. A60 stock trains operated on the surface and sub-surface sections of the Metropolitan line from 1961 to 2012 and 1938 Stock operated on various deep level tube lines from 1938 to 1988.
Image 22The newly constructed junction of the Westway (A40) and the West Cross Route (A3220) at White City, circa 1970. Continuation of the West Cross Route northwards under the roundabout was cancelled leaving two short unused stubs for the slip roads that would have been provided for traffic joining or leaving the northern section.
Image 25Sailing ships at West India Docks on the Isle of Dogs in 1810. The docks opened in 1802 and closed in 1980 and have since been redeveloped as the Canary Wharf development.