Abstract
Level of Service (LOS) analysis for public facilities mostly focused on the number of people that can be handled by those facilities and the quality of service delivered. Spatial service of public facilities usually did not considered in the evaluation of LOS analysis, especially in urban environment, due to the assumption that transportation modes to access public facilities are available homogenously. In this paper, spatial aspect of LOS of Petrol Filling Station in Surabaya City was analyzed using network analysis method in Geographic Information System (GIS) environment. The method used to calculate the spatial service is the Dijkstra's Algorithm that resulted in a spatial coverage of each of the PFS. To calculate spatial service of PFS in Surabaya City, two parameters were used as the input for the algorithm, which are the required time to access PFS and the distance to the nearest PFS.
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