A Simplified C-Logit Stochastic User Equilibrium Model on Bimodal Transportation Network

Abstract EN

This paper investigates the C-logit stochastic user equilibrium (SUE) problem on a bimodal transportation network with road and rail travel modes.

The C-logit model captures the overlapping effect among the different paths via commonality factors; sequentially, it has ability to obtain a more realistic traffic flow distribution pattern.

In this paper, when we redefine the link travel cost functions and employ a binary Logit model for the mode split, the bimodal C-logit SUE model can be simplified into an unconstrained nonlinear mathematical programming formulation.

Such model is verified to satisfy the bimodal C-logit SUE conditions at its stationary point and can be solved by existing algorithms.

So, the simplified model can be convenient to be used on the general bimodal transportation network.