Research On The Optimization For Safety Cost And Its Application To Railway Transportation Enterprise

Safety Cost science belongs to the category of technical economy. Practices prove that the optimization theory of Safety Cost brings prominent optimization effect to relationship between safety and cost in a system. Its most direct function is to carry out the decision-making of " putting limited funds to the place where it is most needed ". Bcause of its character of society serving, railway transportation departments in our country always attach importance to fetching in and renovating advanced technique and equipment, but research and application of Safety Sost is deficient. System info of Safety Cost and optimization methods are thoroughly analyzed and researched in this paper. Aiming at today's safety status of railway transportation in our country, based on prevenient production, Frame of safety cost subject applicable to railroad accounts department is built up; Aiming at a single investment item of railway department, taking a target of safety Cost-Benefit, optimization model is built up, a grade crossing of railroad and road in Beijing is taken as an example to make a tryout of the model; A operation depot's safety cost curve in southern china is simulated with linear least-square method (LLSM) , then the most economic investment point and most rational investment range is found; Losing Safety Cost is predicted with steady Process method when its safety status becomes steady; Then Grey Correlation degree Analysis is used to analyze the fundamentality of every safety factor of the operation depot, their contribution to the whole system is arrayed, then reasonable advice to investment of safety cost is put forward., To correct misunderstanding to meaning of Safety Cost Science of somebody, unification relationship between Safety Cost and People Oriented Guideline is discussed at last.