基于水波原理的城市突發(fā)事件交通影響程度研究
[Abstract]:It is of great practical significance to analyze the impact of urban emergencies on traffic and take corresponding traffic emergency countermeasures. Based on the principle of water wave, this paper compares the impact of urban emergencies on traffic with the effect of throwing stones into the water. This paper puts forward the concept of traffic impact coefficient, and defines the influence degree of unexpected events on traffic, introduces the concept of cumulative traffic impact coefficient, and constructs the theoretical model of cumulative traffic impact coefficient by using double integral. Therefore, the degree of comprehensive traffic impact of unexpected events on the surrounding road network is evaluated. Taking a traffic accident as an example, on the basis of screening and sorting out the investigation data, the time-space distribution map of the traffic impact coefficient is obtained, and according to the characteristics of the changing curve of the traffic impact coefficient with time and distance, The relationship model of traffic influence coefficient with time and distance is constructed by using MATLAB, and the comprehensive traffic influence degree of the accident is 0.466 7. The result shows that the accident has great influence on the surrounding traffic.
【作者單位】: 武漢科技大學(xué)汽車(chē)與交通工程學(xué)院;
【基金】:國(guó)家自然科學(xué)基金(51408445,61403286)~~
【分類(lèi)號(hào)】:U491
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