Never heard of the Ministry of Roads. The Ministry of Transport from 1919 has had responsibility at various times for road and rail transport, civil aviation, ports and shipping. Fleetwood Docks are part of the privatised Associated British Ports plc (1983). Where is your MoR info from?

It is a common device in humour to give government departments modified names to reflect the supposed priorities or prejudices of the organisation concerned. I would recomment a course of Private Eye.