During World War 1 and in the early 1920’s, the Beddington Lane airfield and the Waddon airfield (including National Aircraft Factory No1) were separated by Plough Lane. Therefore, to enable aircraft to move between the two airfields and the landing/take-off areas, there was a railway style manned level crossing with gates, to close the road to allow aircraft to pass across. The southern section of Plough Lane was later shut off. The feature of a road running across an active runway existed at Edinburgh Airport in the 1960’s and remains the case at Gibraltar today.