Research on General Simulation Models of Large-Scale Road Transportation under Complex Environment LIANG Hua-min (School of Civil Engineering, Tianjin Chengjian University, Tianjin 300384, China) Abstract: Large-scale road transportation is difficult to control and predict due to its complex environment. Simulation is a valuable method which can give intuitive and Valuable analysis. For the purpose of pre-evaluation of road transportation plans, this paper proposes a general simulation modeling method for large-scale road transportation under complex environment, and establishes a set of general platforms, including transport fleet behavior model, section property value processing model, road network model, environment impact model, fleet avoidance rule model, path decision model, fleet decomposition and combination model, random interference model and simulation propulsion model. The platform can be used to develop simulation of large-scale road transportation system under complex environment. The example shows that, the simulation system based on our models can draw conclusions with important decision value, which can be used for decision support before large-scale road transportation is implemented. Keywords: highway transportation; general simulation models; complex environment; large-scale transportation; fleet plan;

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