When the USAF extended the Brize runway, did they ever consider the effect of having a railway across it? On the face of it, it is apparently a somewhat silly thing to do: if you have an aircraft needing an emergency landing and there's a train in the section, it may not be possible to stop the train in time....
Not really an issue, the extended runway runs parallel to the railway, the cross runway might have been affected had it been lengthened but has been disused for a long time.
At Ballykelly the track ran across the end of the runway:
RAF Ballykelly opened in June 1941 during the Second World War as an airfield for RAF Coastal Command. In 1943, the main runway was extended and acquired an unusual characteristic in that it crossed an active railway line. Rules were put in place giving trains the right of way over landing aircraft.
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(Source: Wikipedia).