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Peter H Coffin

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    Peter H Coffin commented  · 

    thoughts on implmentation: Need access to elevation data. That's already in Google someplace because Earth has it exposed to users. Already have endpoints for road segments which implies length is obtainable. For short segments, just need elevation of endpoints. If segment is longer than some appropriate distance, need to derive midpoints to check for internal hills. Then use elevation and length to put a slope absolute value on every segment, and avoid segments that have any internal slope higher than some value (maybe 5%?).

    Benefit cases in addition to original post ones: heavy towing, slippery conditions. Just imagine how much fun Seattle or San Francisco must be if it snows....

    Peter H Coffin supported this idea  · 

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