基于TEI@I-IOWA高速公路交通量預(yù)測(cè)研究
[Abstract]:Expressway has the advantages of high energy, high efficiency, fast access and so on. It is an important link between regions and regions. It can promote the prosperity and development of economic areas along the route and play an important role in the process of national economic development. However, the expressway also has many shortcomings, such as large area of land, large investment, long construction cycle, difficulty in raising funds, and so on. In the early stage of construction, a large number of feasibility arguments should be made, and a reasonable construction scale can be determined to bring into full play the greatest economic benefits. The traffic volume of expressway is the most important factor to determine the scale of expressway construction. It is necessary to forecast and analyze the traffic volume demand no matter whether it is a new expressway or an extension expressway. Therefore, it is necessary to accurately predict the trend of highway traffic volume change and provide a basis for the decision making of highway construction. This paper focuses on the study of highway traffic volume prediction method, in order to achieve accurate highway traffic volume prediction. The change of expressway traffic volume is affected by many factors. Changes in one or more factors can cause traffic volume to change in an uncertain direction. Therefore, the expressway traffic volume prediction is a complicated system work, which needs to explore the changing rules of traffic volume development and improve the prediction algorithm constantly, so as to achieve the purpose of accurate prediction of traffic volume change. On the basis of studying the existing technical methods of expressway traffic volume prediction, this paper introduces the TEI@I methodology, and based on its idea of "decomposing first and then integrating", decomposes the expressway traffic volume prediction into three parts: linear, nonlinear and time series. According to the characteristics of each part, the corresponding method is selected to carry out the single prediction. Finally, the combined forecasting model of expressway traffic volume is constructed by integrating the single prediction results with the induced ordered weighted average (IOWA) operator. The combined prediction model is applied to the case analysis. The results of practical research show that the forecasting effect of the combined forecasting model of expressway traffic volume based on TEI@I methodology is obviously better than that of single forecasting method in terms of prediction accuracy, overall error and prediction stability. Can accurately predict the changing trend of traffic volume.
【學(xué)位授予單位】:湖北工業(yè)大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2017
【分類號(hào)】:U491.14
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