This series contains correspondence and papers relating to the administration of highway powers of the Ministry of Transport in respect of: motorways and trunk roads; of grants to local highway authorities for the improvement and maintenance of classified roads; and Welsh roads and bridges from the period before this responsibility was transferred to the Welsh Office in 1965.
Also included are bill papers.
Some files relevant to the London Traffic Branch of the Ministry of Transport are also included, together with files from the TRL series (otherwise in MT 139).
Some files of the Road Research Laboratory are in this series.