Did you know that about London's Taxis

Some of the most famous and iconic sights of London, black cabs can be seen driving around the streets on a daily basis. The London taxi is steeped in history.  But what is it that makes the black cab so important? Below are ten interesting facts about this world famous London transport.

The Knowledge

Perhaps the most important part of being a London taxi driver is “The Knowledge”. This refers to a test that every taxi driver must pass to receive his or her license. Would-be drivers have to study for 2-4 years in order to develop a working knowledge of London’s 320 routes in a six-mile radius of Charing Cross, which includes 25,000 streets and 20,000 landmarks. Drivers who pass get a green badge. 7 out of 10 applicants are said to 'drop out' of The Knowledge.

Black Cab

While black is the most common colour for London taxis, it’s not required to be so. They can be blue, yellow, green, red, or whatever colour. Most tend to be black because of its recognition.

How did it get it's name

The term “taxi” comes from taximeter, the counter used to measure miles traveled and fare. “Cab” was short for “cabriolet”, a French verb for “to leap”, which was a type of taxi and what one did to exit them.


There are approximately 24,000 black cabs in London. Many cabbies own their taxi and operate as independent businesses. Technically, you’re stepping into a “shop” each time you enter one.

Hackney Carriage

The first taxicab licenses were issued in 1639 to the Corporation of Coachmen. Hackney carriages, the first horse-drawn carriages for hire, were issued their licenses in 1662, and later became Hansom Cabs in 1834. The first motorised cabs were introduced to London in 1908 and by the 1920s they had superseded hansom cabs as the primary taxi vehicle.

That famous U-turn

Black cabs have a turning circle of only 25 feet. The reason for this is supposedly to accommodate the small roundabout at the entrance of the Savoy Hotel. This turning radius later became legally required of all London taxis. Savoy Court is also one of the only places in London where vehicles drive on the right, and it was the custom of patrons to sit behind the driver so that they would enter or exit the cab on the side facing the hotel.

Bowler Hat

By law, taxicabs had to be tall enough for a passenger to sit comfortably while wearing a bowler hat. Additionally, at one time, hackney carriages were required to carry a bale of hay for the horse. This law was held over for a time even after motorised cabs began to operate.


Technically, it’s against the law for you to shout “Taxi!” to get their attention. If you see a cab with a lit sign, just hold out your arm to signal them.

Taking the p..

There’s some question as to whether this is real or myth, but some interpret the Town Police Clauses Act of 1847 to permit one to urinate on a London taxi’s left rear wheel provided that the driver’s right hand was touching the cab. The Law Commission refutes this interpretation, but debate of the legality of this action continues to propagate.

Not in the back of my cab

It was also once supposedly illegal for people to hail a cab while suffering from the bubonic plague. This is still partly true, as the Public Health (Control of Disease) Act of 1984 requires a person suffering from a notifiable disease to inform the cab driver, who may then decide whether to ferry the passenger. If he does so, he is then required to notify the authorities and disinfect the cab before taking another fare.