在回顾总影响后果模型的基础上,对该模型在事故分级框架下给出了两种不同的改进形式,并对其公理满足性进行了检验。结果表明,其中一种改进形式既违背公理又违背常理,不宜用于有害物品运输路径选择问题。对于另外一种改进形式,虽然满足公理,但如果改进前的模型默认路段影响后果即为最大可能影响后果,那么改进后与改进前的模型从本质上说是一致的。
Reviewing the population exposure risk model,this paper develops two renewed models from it under the accident graduation,and verifies three axioms to them.It is showed that one of two models violates not only these axioms but also intuition,which is not suitable with routing for hazmat transport.Another one satisfies axioms,but essentially does not differ with un-renewed model only if that the consequence with the accident release is the utmost of it is on acquiescence.