Abstract.A decision sometimes needs to consider many aspects and to be judged by many people. Presenting a case of finding a suitable location for a new school this research proposes seven factors which its emphasis will be differently sorted by various people perspective. Each factor comes in a form of a multi-polygon layer that valued from 0 to 9, representing the suitability value of the certain aspect in the whole city area. The Public and some expert will judge by using the pair-wise comparison of those aspects. This research will provide web GIS application that will use by the public and the expert in this justification process and analyzing the result.

Surabaya city is not yet have a school bus system. With a numerous needy student, the government is realized that free school bus can support the needy student in their transportation cost. The purpose of this research is make a model that can be used by the government to designs the most optimal route and optimal distribution of the free school bus. This paper is focusing on the conceptual framework of the processes in finding the optimal route and analyzing the chosen route. The optimal route is a route that covers the area with the most number of potential passengers, the needy student. The needy density layer is the primary data that will accompanied with street layer, school layer, and bus depot layer. Not just finding the route, the chosen route then used in an accessibility analyst in order to find its effect of the school bus in existing transportation system. The result of this research indicates that the model in this project can be used to find the best route and can support the government in making a decision in the limitation they have.