20251005 16120200 1.0 TRUE 150000000 5000 ISO19139 Terrain Type TerrainType Open Data Transportation Roads and Highways LRS TerrainType General terrain classification associated with roadway segments. <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN><SPAN>Terrain Type classifies roadway segments according to the general terrain through which they pass. The classification reflects the influence of grades and roadway alignment on vehicle operations, ranging from level terrain to rolling and mountainous conditions. Terrain Type is a required data element submission to the Federal Highway Administration (FHWA) for the Highway Performance Monitoring System (HPMS).</SPAN></SPAN></P></DIV></DIV></DIV> 20260630