Several intermodal transportation models have been analyzed to convince the integration of spatial and transportation modeling by using the existing transportation infrastructures (such as road and river networks, ports, etc.). The modeling analysis of CPO transportation in Central Kalimantan Province using geographical information system(GIS)showed that intermodal transportation, especially combination of road-river networks, is the best alternative obtained from the models. In order to have a more robust model and to predict the likely effect of new transport infrastructures to the cost efficiency (in term of generalized cost), hence, it is required to analyze a future scenario. To do so, a case study of spatial and transportation modeling by integrating inter-modality concept between the existing transportation networks and planned railways in Central Kalimantan is also conducted by using ArcGIS. By considering all networks (road, river, railways, and intermodal networks), the reasonable minimum generalized cost (GC) to be applied in the field is a combination of road-rail-river networks.