Hello all I am trying to write a program in c++ to automatically detect the roads on a selected area of the map. I was able to do detect the roads from the Ways and tags attached to them. But I could not find any specific tag that is related to an intersection between two roads. Only thing close to is a traffic signal tag. I was wondering if any one know more authentic way to determine the intersections. Hope my question was not ambiguous.

Hello all I am trying to write a program in c++ to automatically detect the roads on a selected area of the map. I was able to do detect the roads from the Ways and tags attached them. But I could not find any specific tag that is related to an intersection between two roads. Only thing close to is a traffic signal tag. I was wondering if any one know more authentic way to determine the intersections. Hope my question was not ambiguous.