Most U.S. Interstates aren't really straight, they just have gentle curves & wide lanes so you can get to the interesting places more quickly, with less stress while driving.
The other thing they do is smooth out elevation changes in variable terrain. On 4/13/2016 6:01 PM, Brian Walters wrote:
Thanks all for the detailed explanations. As ever, the collected wisdom of the PDML did not disappoint! I agree with Bob about straight roads being an abomination. We're about to head off on one of our road trips. A motorway is available but, as usual, we'll follow the inland road, stopping off at lots of interesting places that the motorways bypass. The journey is just as important as the destination. Cheers Brian
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