Long Range Decision Support System (LRDSS) is designed to evaluate the impact of interdisciplinary investments on the long term financial viability of Indian Railways. It is an objective tool for planning and prioritizing capacity enhancement projects based on traffic projections over the next two decades. 

LRDSS utilizes state-of-the-art technology comprising of a suite of simulation models and optimization tools that allow decision makers to view and analyze the impact of various portfolios of improvement actions on traffic flows, at a national level, on a GIS based interface. It allows planners to construct and test series of “what-if” scenarios, both on the demand side as well as the supply side, thereby empowering decision makers’ to prioritize investments ahead of demand.