Location Analysis for Petrol Filling Station Based on Stakeholders’ Preference and Seismic Microzonation

The determination of petrol filling station location in Surabaya has not considered the stakeholders’ preference on environmental safety perspective and also the sub surface condition yet. As a vital facility, this condition may lead to disastrous condition. Thus, the objective of this paper is to recommend petrol filling station location which is safe for environment and living community in surrounding. As the extend of previous work which is focus on stakeholders’ preference, this current work emphasized on subsurface condition which may influence the stability of petrol filling station infrastructure. However, the result of previous study still will be presented to keep the good coherence of the discussion. Three stages have been set up to reach the objective of this study. Firstly, assess the stakeholder's preference for petrol filling location criteria using AHP method. Secondly, assess and mapping the seismic microzonation using fuzzy clustering method. Thirdly, suitability analysis based on stakeholder's preference and seismic microzonation to find recommended location using GIS method. As the result of the study shows that based on stakeholder's preference, the proper selection of land use criteria appears as the most important criteria for determining petrol filling station location and yielded 31,2% influence. Based on seismic microzonation, the North part of Surabaya mainland from East to West which is near to Madura Straight is high susceptible for local seismic. As a conclusion based on the overlay mapping of these two findings, the Central part of Surabaya heading to West is the most suitable location for petrol filling station. The result of this study could be used as an evaluation for existing petrol filling station location or either for future preference. In another hand, it could be a very useful recommendation for zoning regulation to control the development of petrol filling station which doesn’t concern environmental safety.