Actually, as Herr Bratsche pointed out when this last arose about 5 years ago, there is a geographical significance to Watford Gap as the attached map shows. Within about 400 metres you have a railway line, a roman road (Watling Street - now the A5), and a canal all passing through the same minor low point. The motorway just follows the rest, showing that the romans knew a thing or two about roads. When you drive through on the motorway the surrounding geography is not evident.
[INJ] Ah - seem to remember my late father saying as much way back in the 60s when we travelled north regularly, so thanks for that map ref for Watford Gap. I would so hate to be one of Rosie's 'stupid people' who misunderstand the term :-)
Thanks for setting me straight, good people, your points have been noted. Any road, I know now that I'm one of them 'stupid people'. It's ever so nice to keep track of your station in life. I'm sure that my to-ing and fro-ing would be easier if I had a good staff but continual ups and downs and constant changes confuse me no end. One of my relatives keeps telling me "get a grip, Dujon". To that end I have bought myself a sand box. If it doesn't work as planned then at least I can stick my head in it.