I'm using the layers ESRI_Europe_roads and ESRI_Europe_railroads. In the attribute tables of both layers are two columns named "TYPE" and "LEVEL".
The "TYPE" column in the roads layer has values from 1 to 6 and the "LEVEL" column has values from 0 to 2.
The values in the "TYPE" column in the railroad layer are 30 or 58 and the "LEVEL" column is always 10.
I would like to know what these columns mean and what they are based on. For my study I have to classify the different road and railway types based on their barrier effect for a particular animal species.
I cannot deduce their meaning from the other columns because some B-roads (B=Bundesstrasse) have TYPE 3 and some B-roads have TYPE 2, for example, and I would like to know why.
