A Stochastic Mixed Traffic Equilibrium Assignment Model Considering User Preferences

Multi-modal trips are common in urban transportation networks. Traveling preferences are also considered by users in addition to their travel mode, path, cost and time. In this paper, in order to show the behavior of traveling choice under the influence of the cost, time and user preference, a variational inequality model is developed to describe the stochastic multi-user and multi-modal mixed traffic equilibrium. In this model, the mutual influences among different traffic modes are considered in a general traffic network, and travelers are grouped into different user classes according to their socio-economic characteristic and travel behavior. The model is illustrated by an application to a numerical example. Numerical results indicated that the mode choice of users is influenced by some factors such as the cost, time and users preferences for different mode and different transfer station.