运输方式互利共生的非线性动力学模型

综合运输结构决定综合运输系统的功能，各种运输方式之间的竞争和协作影响综合运输的结构。因此，研究各种运输方式的相互作用机制就显得很重要。本文通过对各种运输方式互利共生机制的研究，展示了各种运输方式协作互利的前景。仿真结果表明，如果各种运输方式的相对资源优势比较明显，就存在互利共生的可能性，并存在一个最优的合作水平。较高的资源转换效率和资源使用效率能使互利共生机制得到更充分的体现。与非合作动态博弈情况相比，协作情况下互利共生机制能发挥更大的作用。因此，通过政府部门等外力建立协作的机制，是更好地实现互利共生机制的必要前提。

A Nonlinear Dynamic Model for Mutualism of Transportation Modes

The function of comprehensive transportation system is determined by its structure, The structure is affected by the competition and cooperation of various transportation modes, Therefore, the interaction mechanism is well worth reviewing, This article looked into mutualism mechanism of various transportation modes, and found the possibilities of coordinated cooperation besides competition. The simulation results showed that, if the relative resource advantage of various transportation modes was evident, there existed the possibilities of mutualism and an optimum cooperation level. The higher the effectiveness of transformation and utilization of resources, the better the mutualism mechanism could perform. In contrast with results from the non-cooperative dynamic game, mutualism could perform better under coordination. Therefore, it is necessary to use external forces such as government administration to better realize the mechanism of coordinated cooperation.