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In order to further improve the truck dispatching theory of open pit mine, an open pit mine truck dispatching equilibrium distribution model based on traffic flow planning was put forward. The distribution model is based on the principle of Wardrop, and the distribution of the road resistance is used as the basis of the distribution. Verified by the case , the road traffic flow of the model in the truck dispatching process is more optimized as the research object than the result of traffic planning , and achieves the purpose of further optimization of truck dispatching process. Introduction As an important part of the open pit mine production, the truck dispatching process has always been the key research direction of the optimization of the open pit mine. At present, the main research methods divide the open pit mine truck scheduling process into three stages respectively: the shortest path optimization, traffic planning and real-time scheduling.But in the calculation of the shortest path and traffic flow optimization, trucks on the road travel time only as a linear function of the path were considered and the impact of the link travel time of other vehicles on the road and road traffic ability of wagon flow allocation results did not have related literature research.But in the field of traffic, a large number of research results shows that the travel time of the car on the links and road traffic flow are closely related, and road traffic capacity has a obvious limit to road traffic distribution To direct at the above problems, this paper firstly analyzes the accuracy of the traditional traffic planning of the maximum production under the condition of continuous changed truck’s quantity.Then, Through establishes the equilibrium assignment model of open-pit mine truck dispatching based on the traffic planning studying the truck traffic flow of open pit mine under the comprehensive resistance, and tests the effects of comprehensive resistance on traffic distribution and the practicability and reliability of the equilibrium assignment model with a case, provides a theoretical basis and guidance for a more comprehensive optimization of truck dispatching process. Equilibrium assignment model To optimize the open-pit truck dispatching process, some assumptions were made in [7] refs. Open-pit mine equilibrium assignment model firstly by maximum yield as the initial target of traffic programming model to give the trucks distribution amount, then establish network traffic equilibrium assignment of traffic assignment. The goal of traffic planning of maximum production in the open pit mine is: max N M ij i j Z W q = ∑∑ (1) Traffic planning needs to satisfy some constraints of the existing production conditions of mine, the limit of production capacity of loading point is: 2nd International Conference on Electronics, Network and Computer Engineering (ICENCE 2016) © 2016. The authors Published by Atlantis Press 739

Equilibrium assignment model of road network for traffic flow in open pit