Hi,
I need to construct a connected road network from all available speed cameras; e.g. I need to know if there is a road link connecting camera 1 location to camera 2. This is practically impossible to go through all the 6000 cameras to find out how cameras are located with respect to one another, and I am pretty sure there should be some kind of summary sheet of such network in terms of road links with tail/head coordinates, which I am unable to find. I would be so thankful if anyone could advise.