Economic Benefit Optimization Model of Urban Rail Station Based on C-D Function

In order to study the optimal investment plan for urban rail stations under a certain amount of investment, the safe investment is regarded as a production process, “safe value-reduced output” and “safe value-added output” after the reduction of accidents are as benefits and the Cobb-Douglas function have been improved. Employee safe training investment, safe equipment maintenance investment, safe publicity and guidance logo investment, emergency evacuation drilling investment, and security staff salary input have been taken as independent variables to build safe investment in the stations to optimize the model. Taking an example in Shenzhen to verify the type by use of Matlab. The results show that the model is a good reflection of the relationship between the safe investment sub-items of urban rail stations and the economic losses of accidents during the ten years, and the benefits of the optimized investment plan are obvious.