Site Suitability Analysis for Road in Mountainous Terrain Region of Papua New Guinea (A Case Study of Salt Noname Karimui District of Simbu Province)

Road infrastructure developments in rural Papua New Guinea (PNG) have not picked up pace due to mountainous and difficult geographical landscape. Hence road accessibility Salt Nomane Karimui (SNK) District of Simbu province is emerged as a serious concern particularly with regard impact poor mobility on agricultural produce ability access public amenities. Governing agencies plans place for connectivity region other parts SNK district but their attempts remain unsuccessful geography lack technical data. This study utilized Geographical Information System (GIS) multi-criteria evaluation (MCE) techniques through Analytic Hierarchy Process (AHP) develop site suitability model evaluate terrain forest district. The approach looking at this research classify factors into two principle classes’ i.e. Geophysical Geotechnical influence factors. Relatively important geophysical influencing sites including altitude, slope, river network, rainfall data are integrated generate alternatively map one. Lithology, Soil Texture Landform two. final produced by integrating the thematic layers classified five classes less suitable, marginally moderately suitable highly suitable.