TfL - Transport for London
London's transportation system is one of the most smartly managed systems of the world. Close to 80% of community travel is done through the smart Oyster Card. This makes it possible for TfL (Transport for London, the city's mobility operator) to analyse and use large sets of travel data to develop the transportation system. To date, more than 200 mobility apps have been developed in the city based on the open data principles of TfL.