[OSRM-talk] calculation of jump distances

[Sayer, Bryan]

Hi,


We are calculating distances between an U.S. census tract centroid and hospitals. A tract averages about 4,000 people, but can vary in area. Obviously, the centroid is likely to not be on a street, and thus a jump distance has to be calculated to get to a street.


Our question is what is the general algorithm for getting to the starting point? We definitely end up with some very large numbers (several hundred kilometers) on some jump distances, which seems incorrect.


Bryan Sayer

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