[5] The DfT maintains datasets including the National Trip End Model and traffic counts on major roads.

The devolution of transport policy varies around the UK; most aspects in Great Britain are decided at Westminster.

In May 1937, power to make provisional orders for harbour, pier and ferry works was transferred to the Secretary of State for Scotland.

Following a series of strikes, poor performance, concerns over access for the disabled and commuter protests relating to Govia Thameslink Railway a group of commuters crowdfunded £26,000 to initiate a judicial review into the Department for Transport's management and failure to penalise Govia or remove the management contract.

The oral hearing to determine if commuters have standing to bring a judicial review was listed for 29 June 2017 at the Royal Courts of Justice.

[14][15] The attempted judicial review was not allowed to proceed, and the commuters who brought it had to pay £17,000 in costs to the Department for Transport.