在界定铁路货运高端产品概念的基础上,构建在市场竞争条件下,不同运输方式之间、同一方式不同等级产品之间货流合理分配的优化定价三层规划模型并给出启发式算法。模型同时考虑铁路货运部门和货主双方的利益,既保证货主的广义费用最低,又使铁路部门的货运收入最大,最后给出算例进行验证。 On the basis of defining the concept of high-end products in railway freight transportation, a three-level programming model of optimal pricing for the rational distribution of freight flow between different modes of transportation and between different modes of the same type is established and the heuristic algorithm is given. At the same time, the model considers the interests of both the railway freight transportation department and the owner, which not only ensures the lowest generalized cost of the cargo owner, but also maximizes the freight revenue of the railway department. Finally, a calculation example is given to verify the result.