Evaluation of the Performance of Vital Services in Urban Crisis Management

Crisis management assessment and planning include many components. One of the essential elements is the review and analysis of the structure of the existing situation and the performance of Vital services in the face of critical cases. During the occurrence of natural disasters, the issue of crisis management is crucial in order to reduce the damages caused by the crisis. One thing that reduces the damages is the correct and timely access of critical relief centers such as fire departments, emergency, police force, and crisis management centers to their covered areas. Therefore, in this research, the structure of these vital centers' existing situation and location were investigated first, and the operating radius of these centers was measured according to specific standards. In this research, Network Analyst has been used to analyze 8300 streets, taking into account the average speed limit and the length and width of each street in the GIS to calculate the level of coverage of vital relief agencies. This system uses the Dijkstra algorithm to find the best route, the most straightforward algorithm among all existing algorithms. It also has high power and speed in calculations. In this article, after analyzing the performance of four vital services during crisis management in terms of accessibility and zoning, and prioritization based on the level of high, medium, and poor coverage, and according to the obtained results, it is suggested that a new location for creating new service centers should be established in areas with poor coverage so that the balance in the field of relief is done in the face of future crises. Other urban researchers can use this approach.