I am trying to get traffic flow data for a 100m proximity in Thessaloniki Greece. Specifically I send the request below:
The returned json object contains road segments far outside this area. In fact it seems that even if I change the proximity radius or it's center within the city, I always get the same object as a response which seems to be consisted of some main roads inside the city.
Any idea why this is happening? I mean if there were no data for my proximity I would expect maybe an empty object as a response.
API is giving correct response however the problem is, that even if you can specify 1 or 100 meters as radius the service really support only the smallest resolution of 1 km. This is due to how the data is stored in the service, which is tile based.
and each such a request is then converted to tiles - which have a predefined size. So a 100 meters request can end up in a tile of size 1x1 km easily. That is why you get traffic outside of a smaller proximity.