Quote:
Originally Posted by thorpie
There are two gradients. For the bulk of travel it is downhill at 0.7%. The uphill elevation shift gradient, while not "standardized" at this time, will be considerably steeper than the 0.7% downhill.
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Something tells me you haven't quite thought this through :-) Take an example: there's a road I drive frequently, about 17 miles between place A down in the valley and place B at the top of a mountain, with an elevation change of about 4400 ft. So you're going to build two completely different roads, one for downhill and the other for uphill, and (using your 30 miles at 0.7% = 1100 ft, which I haven't checked) the downhill road is going to be 120 miles long.
Now suppose you happen to live halfway up the hill, or want to visit a place (e.g. the local ski area) that's partway up. You either have to waste a lot of time going one way in order to go the other, or have to build a lot of connector roads between the up & down routes.