Research On Uncertainty Location Planning Based On Scenarios With Damages Of Railway Emergency Facilities

Railway emergency facility is an important emergency infrastructure to prepare emergency rescue work at any time before the accident occurs,for which has a direct impact on the reliability,urgency,and ultimate effectiveness of the rescue.Therefore,the location problem of railway emergency facilities has always been the research direction of the railway emergency management system.If railway emergency facilities' damages in accidents aren't considered during location planning,there would be lack of corresponding emergency strategies once facilities damage.Therefore,it is a worthwhile study to take full account of the damages caused by the accident during the location planning of railway emergency facilities.The core research contents of this paper are the analysis,construction,solution and application of t location model under railway emergency classification and uncertainty of emergency facilities damages.The main research works are as follows:This paper firstly analyzed the uncertainty characteristics of railway emergency facility,and using the robust model to solve the problem of uncertain facilities damages.Assume the future scenarios to determine the model input parameters of scenario planning model.Put forward and construction two kinds of uncertain emergency facilities location model under railway emergency classification scenarios,respectively with known damage probability and unknown damage probability.Lingo is utilized to solve the model.Through randomly generated examples,analyses shows that in the known probability location model how the parameters effect on the location decision,and robustness relations between location decision and system robust for each classification of scenes.The location decision considering all situations ensures railway system's normal operation at a certain level of robust system in any future scenarios,and ensures the minimum deviation for every optimal classification scenarios to effectively improve the reliability and adaptability of the location decision.This paper select general speed railway network of Nanchang Railway Bureau to conduct an empirical analysis.To emergency facility location planning problem of Nanchang Bureau,emergency facilities location decision is gotten with uncertainty facilities damages considered,therefore the validity and applicability of the model are verified.The research results of this paper enrich the theory of location and planning for railway rescue and railway emergency facilities,and provide references for railway related departments' emergency facility location planning and decision-making.