Indiana NHS (National Highway System) Line Inventory created as an ESRI polyline shapefile consisting of a Feature polyline geometry. The data set was compiled by Road Inventory of the Indiana GIS Department of Transportation (INDOT) . Dataset is classified as sde Feature Class. The Feature Class is projected Coordinate System: NAD 1983, UTM, Zone 16 N. The Projections is Transverse Mercator.

Each NHS Line Inventory is placed as to Position, From and To Measure, by Route, and contains the following classifications by type. They are: Not on NHS, Is on NHS, Major Airports, Major Port Facility, Major Amtrak Facility, and Major Rail/Truck Terminals, Majo Inner-City Bus Terminal, Major Public Tranit/Multimodal Terminal, Major Pipeline Terminal and Major Ferry Terminal. NHS Line Inventory is Dated as of 2006-2015.