I use ArcGIS 10.1. I have a shapefile with sites and another with the rivers of the area.
I would like to calculate the density of the sites related to the river vicinity. Is it possible? Which type of tool could I use?
Geographic Information Systems Stack Exchange is a question and answer site for cartographers, geographers and GIS professionals. It only takes a minute to sign up.Sign up to join this community
There are several ways to do this.
The simplest would be to use the Spatial Join tool to join your sites shapefile to your rivers shapefile. Specify the Join Operation as One to Many, the Match Option to CLOSEST and specify a Search Radius and Distance Field Name. This Distance Field Name will use whatever unit is set as the map unit in your data frame.
This tool will return a shapefile that contains every site within your Search Radius of a river, with a Distance column that specifies how close. With this result, you can query or symbolize your sites based on their distance from the nearest river.