An improved dial's loading algorithm for traffic equilibrium models

The paper proposes an efficient algorithm, one improved Dial's loading algorithm (IDLA), for determining the approximate solution of logit-based stochastic user equilibrium model (SUE). Since the user equilibrium (UE) model is an extreme case of the SUE, the algorithm can also be applied to the UE. In this paper, we firstly present the framework of the IDLA for both only one OD pair and multi-OD pairs. Then the convergence property is discussed. Finally one numerical example is computed in Matlab which validates the feasibility of the IDLA.