Traffic Assignment Model Considering Emission Based on Path-based Solution Algorithm: Comparison and Discussion

In this paper, we discuss a nonadditive path costs traffic assignment problem considering emission effects. Based on Venigalla´s research, we put forward the traffic assignment model considering emissions at different engine operating modes. We also use two path-based algorithms, gradient projection (GP) algorithm and disaggregated simplicial decomposition (DSD) algorithm to solve the mathematic model respectively. Then, we apply the model as well as the algorithms into a real network and compare some computational characteristics of them. The results show that both GP and DSD algorithms have a rapid convergence speed than FW algorithm. The results also demonstrate that path-based algorithms can be widely used in solving large scale traffic assignment problem with nonadditive path costs.