Passenger flow assignment approach to railway passenger transportation network based on combined entropy optimization

As for the passenger flow assignment of railway passenger transportation networks, railway passenger transportation network based on passenger train plan is developed by many OD(origin destination) passenger travel paths. Total impedance of passenger travel paths is measured by the generalized travel cost. Allowing for passenger transportation capacities in different railway line sections and the total impedance of passenger travel paths, the passenger transportation capacity saturation entropy in different railway line sections and the total impedance entropy of passenger travel paths were proposed. Also, a passenger flow assignment optimization model was proposed, taking OD passenger flow, transfer time, nonnegative passenger flow as constrains, make railway passenger transportation capacity match demand for passenger travel as much as possible. The iterative optimization algorithm based on entropy optimization was developed by taking into account the importance of the passenger transportation capacity and total impedance of passenger travel paths. Numerical example results show that a more effective and detailed railway passenger allocation scheme of different travel paths is established by adopting the passenger flow assignment model and algorithm developed in this paper.