The Tokyo metropolitan government conducted a study to develop a road pricing policy in preparation for the 2020 Tokyo Olympics. Three plans were subsequently announced on the web site. For each plan, benefits were estimated in terms of comprehensive global assessments, that is, total transit time and cost. In this study, we estimated the local impacts of the proposed plans. These were analyzed using a Geographic Information System (GIS). Specifically, we set up road pricing facilities according to the plans along a digital road network and computed the traffic flow that would be affected by the facilities. Applying a GIS, we analyzed the resultant economic and social impacts in the units of local governments.  In our numerical experiments, we assumed that there were several possible routes between origins and destinations. From a practical perspective, we determined the locations of the facilities so as to maximize the total captured traveler kilometers and the number of origin–destination pairs, in addition to standard traffic flows. Based on the configuration of the facilities, we assessed the impact of accounting facilities on the total traffic pattern. Consequently, we proposed a framework for analyzing the locations of the facilities using a GIS.