Alfred Collins is London's longest-serving taxi driver.Following 70 years of service in 2007 aged 92, Collins was honoured and presented an award by Transport for London at the Public Carriage Office.Collins drove his first passenger in 1937 and his passengers have included Margaret Thatcher, Joan Collins and Bruce Forsyth.In an interview, Collins said: "Life is all about communication and I have enjoyed sharing my vast experience of life as well as learning a lot with some of my passengers...