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Study On Evolution Mechanism Of Regional Integrated Traffic Ecological Behavior

Posted on:2018-01-03Degree:MasterType:Thesis
Country:ChinaCandidate:Y WangFull Text:PDF
GTID:2322330518953673Subject:Engineering
Abstract/Summary:PDF Full Text Request
By summarizing the research results of ecology theory interdisciplinary,we examine the internal relations in the comprehensive transportation system from the viewpoint of ecology and find that there exists ecological behaviors which are similar to organic groups in the integrated transportation system.By regarding traffic system as the organic group with the characteristic of life,redefining the traffic group through the ecological theory and using the method of ecology theory to reinterpret the phenomenon of transport organization,we analyze the internal “competition”,the “predation”,the “parasitism” and “symbiosis” and other ecological behavior mechanism of traffic system.We compare traffic factors with ecological factors one by one,regard the traffic individual as ecological individual,traffic method as ecological group,traffic system as ecological system,thus according to the fourth period ecological theory,namely the ecological factor theory,the ecological matching theory,the ecological niche theory,the ecological niche regulation theory,we construct the theory of regional integrated traffic ecological evolution mechanism.The four-stage ecological theory of traffic matching transformation is as follows:(1)Traffic factor index organization based on ecological factor theory.We analyze and decompose the traffic factor which combine the state and force,and then establish the evaluation index system for traffic factor,thus constructing Entropy Weight Fuzzy Matter-element Evaluation Model which is based on traffic factor system.(2)Analysis of traffic competition and cooperation status based on ecological matching theory.We combine the gray model with the Lotka-Volterra model in ecology to establish a “gray LV” model for predicting integrated traffic competition and cooperation relationship.And through the game theory test,it is proved that this model is suitable for the case where the sample data is small,to predict the mode of competition and cooperation in order to analyze the competition and cooperation status among traffic modes in comprehensive traffic system.(3)Evaluation of traffic situation based on niche theory.Based on the niche breadth model,the exponential index model and the overlap index model,we deeply measure the niche spatial width,niche differentiation and overlapping interactions of the various modes of transportation in the traffic system.The traffic niche breadth reflects the structural position and network proportion of various modes of transportation,and reveals the traffic resource occupancy after the interaction between traffic factors;the traffic niche differentiation reflects the degree of coordination of the development of each mode of transportation under current niche breadth of;traffic niche overlap reflects the changes in the traffic structure,revealing the degree of competition between the various modes of transport and trends.(4)Optimization of traffic layout based on ecological regulation theory.The ecological footprint theory is applied to the traffic field,considering the influence of dynamic road,static parking and energy footprint,and the comprehensive analysis model of traffic ecological footprint is established.The calculation method of urban traffic ecological footprint is introduced with the combination of the results of the previous section,thus analyzing the calculation data and putting forward the idea of optimizing the traffic structure.
Keywords/Search Tags:Integrated transportation, ecological theory, ecological behavior, evolution mechanism
PDF Full Text Request
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