Forum Discussion
paulj
Apr 16, 2014Explorer II
My impression from the online sample of Mountain Guide (for Arizona) is that most of their grade information comes from state DOTs, specifically the grade signs they post at the top of long grades. The purpose of those signs is to warn truckers, giving them a chance to test their brakes (brake test pull offs), and to gear down.
DOTs also warn about curvy sections. Grade warnings at the base of a hill are not common, though I have seen them in California.
California has maps for truckers, buses and RV showing restricted roads - mostly for length. Look up discussions about Calif. highways like 108, 4, 20 (west of US101), CA1 north of Fort Brag, etc.
Many print maps show 'scenic highways'. Since scenery and mountains often go hand in hand, some big RV drivers avoid those.
I'm not aware of books or websites that warn about roads being 'too rough'. Roughness can change with maintenance, or lack there of. The biggest difference in roughness is between paved and gravel roads.
DOTs also warn about curvy sections. Grade warnings at the base of a hill are not common, though I have seen them in California.
California has maps for truckers, buses and RV showing restricted roads - mostly for length. Look up discussions about Calif. highways like 108, 4, 20 (west of US101), CA1 north of Fort Brag, etc.
Many print maps show 'scenic highways'. Since scenery and mountains often go hand in hand, some big RV drivers avoid those.
I'm not aware of books or websites that warn about roads being 'too rough'. Roughness can change with maintenance, or lack there of. The biggest difference in roughness is between paved and gravel roads.
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