This connection from the M180 to the west of Scunthorpe clearly has ideas above its station, and was granted its own number when other spurs of greater length do perfectly well without.
It was the UK's only single-carriageway motorway, and twenty years ago it ceased to exist. This is the story of the strange fascination it held, and of my place in history.
A century ago, one short memorandum issued by the Ministry of Transport laid the groundwork for a system of standardised, uniform road signs and a great deal more.