SEVERAL LONDON TAXIS ON LOWER REGENTS STREET, LONDON

Wallpaper Description:

A hackney or hackney carriage (also called a cab, black cab, hack or London taxi) is a carriage or car for hire. A hackney of a more expensive or high class was called a remise. A symbol of London and Britain, the black taxi is a common sight on the streets of London The hackney carriages carry a roof sign TAXI that can be illuminated to indicate their availability for passengers.
In the UK, the name hackney carriage today refers to a taxicab licensed by the Public Carriage Office, local authority (non-metropolitan district councils, unitary authorities) or the Department of the Environment depending on region of the country.

In London, hackney-carriage drivers have to pass a test called The Knowledge to demonstrate that they have an intimate knowledge of the geography of London streets, important buildings, etc. Learning The Knowledge allows the driver to become a member of the Worshipful Company of Hackney Carriage Drivers. There are two types of badge, a yellow one for the suburban areas and a green one for all of London. The latter is considered far more difficult. Drivers who own their cabs as opposed to renting from a garage are known as "mushers" and those who have just passed the "knowledge" are known as "butter boys".

The London taxicab driver is required to be able to decide routes immediately in response to a passenger's request or traffic conditions, rather than stopping to look at a map, relying on satellite navigation or asking a controller by radio. Consequently, the "Knowledge of London" is the in-depth study of a number of pre-set London street routes and all places of interest that taxicab drivers in that city must complete to obtain a licence to operate a black cab. It was initiated in 1865, and has changed little since.
It is the world's most demanding training course for taxicab drivers, and applicants will usually need to pass at least twelve "appearances" (periodical one-on-one oral examinations undertaken throughout the qualification process), with the whole process averaging 34 months to pass.