A comprehensive inventory has to provide the information necessary for identifying and prioritizing
required maintenance intervention and in addition, provide the basis for the development of road
improvement plans. As a minimum, this inventory will categorize roads, identify drainage structures
and rate their condition, identify and assess potential slope stability problems, and maintain
information related to the condition of the road surface (Oregon Department of Forestry, 2000). The
possibility to easily store and handle spatial data, to locate features on the terrain and to perform
spatial analysis make GIS the ideal tool to manage information about forest road network.