Buses are by far the most used form of public transport in London and are able to provide a comprehensive and adaptable service.
London's local authorities are key to delivering TfL's Healthy Streets agenda.
TfL wants to take over the running of more suburban rail lines to incorporate them into the London Overground network.
London aims to be the Ultra-Low Emission Vehicles (ULEV) capital of Europe, with ULEVs as a core part of our sustainable transport.
We wanted to better understand the choices people make about travel to work.