interstate runnways?

On Mon, 13 Jun 2005 20:51:34 GMT, zaphod wrote:

OK, This sounded a little strange to me, but during lunch today with some
co-workers, someone asked if I knew of some rules regarding interstate
construction. They had heard a bit of trivia that claimed that an
interstate highway must have sections that are straight, level, and long
enough for a plane to land(at least 1 mile they thought.) I had never
heard of such and was wondering if anyone here knows what they were talking
about?

I have heard something similar. Recall that the interstates were sold
to Congress in the 1950s as the National Defense Highway system. I
believe it was argued that they could be used to disperse the SAC
fleet in time of war. I have no reference to this; it's just something
I recall.


-- all the best, Dan Ford

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