TfL is responsible for public transport in London and collects large amounts of data from over 30 million daily journeys. They have established an open data program to share this data through APIs and under an open license. This open data is used by hundreds of third party applications and has generated significant economic benefits, including an estimated £30-116 million in annual customer time savings. TfL aims to continue expanding their open data program and partnerships to increase transparency, innovation, and customer experience.