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基于組合賦權和灰色聚類的一級公路平交口安全評價

發(fā)布時間:2018-07-05 16:27

  本文選題:交通安全評價 + 組合賦權; 參考:《武漢理工大學學報》2015年11期


【摘要】:公路平面交叉口是公路網交通流的重要轉換節(jié)點,同時也是交通事故多發(fā)的"黑點",及時掌握交叉口的安全狀況對預防交通事故,減少交通傷害十分必要。通過對平交口安全影響因素梳理,提出基于道路和環(huán)境特性的公路平交口安全評價指標體系,并給出了各指標的模型表達式。利用熵理論和序關系分析方法,組合賦權確定了各指標權重;運用灰色聚類評估方法,對指標體系進行聚類分析,根據灰類將交叉口安全水平劃分為5個等級(A-E級)。結合公路平面交叉口的實際調查數據進行實例應用,并與傳統(tǒng)的主觀評價方法進行對比,結果表明,基于綜合賦權灰色聚類評價的交叉口安全等級與傳統(tǒng)評價方法有較好的一致性,能反映其實際安全狀況。
[Abstract]:Highway intersection is an important transition node of traffic flow in highway network, and it is also a "black spot" with frequent traffic accidents. It is necessary to grasp the safety condition of intersection in time to prevent traffic accidents and reduce traffic injuries. By combing the factors affecting the safety of the horizontal intersection, the evaluation index system of the safety of the highway intersection based on the characteristics of the road and the environment is put forward, and the model expressions of each index are given. The weight of each index is determined by using entropy theory and order relation analysis method, and the grey cluster evaluation method is used to analyze the index system, and the safety level of intersection is divided into five grades (A-E level) according to the grey class. Combined with the actual survey data of highway intersections, the application of practical examples is compared with the traditional subjective evaluation method. The results show that, The safety grade of intersection based on comprehensive weighted grey clustering evaluation is in good agreement with the traditional evaluation method and can reflect the actual security situation.
【作者單位】: 上海交通大學船舶海洋與建筑工程學院;同濟大學交通運輸工程學院;淮陰工學院交通工程系;
【基金】:國家自然科學基金(51078232)
【分類號】:U491.23;U492.8
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本文編號:2100900

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