I have a list of co-ordinates where traffic counts were carried out.
I wish to associate these traffic counts to the link they are selected with. For that link I want to know the location of its two opposing junctions. For example, on a road that goes north south - I want to know the coordinates of the south junction and the north junction.
If I have a shapefile of points and another shapefile of the road graph (the nodes and links) is there a GIS method for 1. finding the road link that coordinate is on and 2. the coordinates of the closest junctions on that link?
Many thanks
أكثر...
I wish to associate these traffic counts to the link they are selected with. For that link I want to know the location of its two opposing junctions. For example, on a road that goes north south - I want to know the coordinates of the south junction and the north junction.
If I have a shapefile of points and another shapefile of the road graph (the nodes and links) is there a GIS method for 1. finding the road link that coordinate is on and 2. the coordinates of the closest junctions on that link?
Many thanks
أكثر...