How does the Area Analysis (or Traffic Density) product provide statistics for a road open in two directions?
The Area Analysis (and Traffic Density) network has values for both directions in case the road segment is open in both directions. This is based on the digitized direction as in TomTom's mapping product MultiNet. The network is based on the digitized direction. To view this you can change the lines into arrows, you will then see the direction of each link. To properly visualize it you can use offsets per direction to correctly display it.