So if we actually input the maximum number of 25 origins and 25 destinations, the API returns 625 distances between these points. It also calculates, as the name suggests, the distance matrix, so we get a distance matrix for all possible combinations of origins and destinations. Most importantly, it can handle at most 25 origin and destination points for a single call. LimitationsĮven though the Distance Matrix API is very powerful, it has certain limitations, as most Google APIs do. This parameter is ‘driving’ by default so I’m omitting it. To change it, you need to add an extra parameter mode to the API call and set it to ‘driving’, ‘walking’, ‘bicycling’ or ‘transit’. It’s worth noting that this API can return also other types of distances, e.g.
And true, Bing also has a similar service which is mostly free but Google Maps is more likely to recognize all kinds of address strings in case we don’t have geographic coordinates available for all the points. And there probably isn’t a better API for this case than the Distance Matrix API from Google Maps. Since getting a driving distance is a rather difficult task as we need to know the exact road layout and know which ones are drivable, an obvious solution is the usage of an API. The way in which my data are structured note that while origins are all unique, the destinations repeat.
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