Hackney carriage which a taxi may operate and include regulating the taximeter (not compulsory until 1907), the maximum age of the taxi (not more than 15 years), advertisements and the turning circle of . As part of the Transported by Design programme of activities, in 15 October 2015, after two months of public voting, the black cab was elected by Londoners as their favourite transport design icon. 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
Hybrid taxi to the Cambridge License Commission (CLC), and based on a study conducted by John Moore, along with Boston Cab and the Boston Public Health Commission, the average Cambridge cab driver travels about per shift. Assuming a gasoline price of per gallon ($0.79 per liter), the cab drivers would save an average of $18 to $21 per shift. During an average shift a Cambridge hybrid taxi will use between three and four gallons of gasoline as opposed to 10 gallons or more burnt by an outdated Crown Victoria taxicab. Chicago has a fleet of 6,700 to 6,800 active taxicabs on any