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考慮大型車輛遮擋因素的高速公路路側(cè)標志設(shè)置效果評價研究

發(fā)布時間:2018-02-26 10:19

  本文關(guān)鍵詞: 高速公路 交通標志 標志設(shè)置 標志遮擋 數(shù)學(xué)模型 綜合評價 出處:《長安大學(xué)》2014年碩士論文 論文類型:學(xué)位論文


【摘要】:交通標志作為管制交通、傳遞路網(wǎng)信息的安全設(shè)施,在現(xiàn)代道路交通管理中發(fā)揮著重要的作用。因高速公路具有道路封閉、車輛行駛速度快的特點,其交通標志所起的指引作用更加重要。現(xiàn)階段高速公路交通標志的設(shè)置主要考慮的是設(shè)計設(shè)置參數(shù)與駕駛員行為之間的相互作用關(guān)系,并沒有考慮所在道路交通流對其設(shè)置效果的影響。而在實際情況中,行駛在高速公路快車道上的小車駕駛員在視認道路右側(cè)的立柱式交通標志時,視線經(jīng)常會被慢車道上車型高大的大車所遮擋,造成交通標志設(shè)置的“失效”。因此,在高速公路的標志設(shè)置或改建時,亟需同時考慮所在路段的交通流因素及標志被大車遮擋的因素。 本文所研究的關(guān)鍵內(nèi)容即是對路側(cè)交通標志被大車遮擋的情況進行模擬與分析。研究過程主要分為3個階段,分別為資料收集階段、模型系統(tǒng)建立階段和模型系統(tǒng)應(yīng)用階段。資料收集階段主要總結(jié)國內(nèi)外已有模型的研究角度、方法,以及理論基礎(chǔ),分析模型考慮的場景是否恰當、全面,最后考慮模型所得出結(jié)果的實用價值。在模型系統(tǒng)建立階段,將首先進行模型場景的邏輯設(shè)計,,進而確定相應(yīng)的指標參數(shù)和影響因素,然后編制判斷遮擋是否發(fā)生的算法,最后研究各場景發(fā)生的概率。在模型系統(tǒng)應(yīng)用階段,將會選取實際道路,運用模型系統(tǒng)對其進行分析,同時反饋應(yīng)用中遇到的問題。 本文在以上工作的基礎(chǔ)上,構(gòu)建出了基于遮擋時間的路側(cè)標志遮擋模型,同時結(jié)合現(xiàn)有高速公路路側(cè)標志的相關(guān)設(shè)計設(shè)置理論,建立起了“指路標志—駕駛員操作行為—交通流運行狀態(tài)”相互作用的交通標志設(shè)置效果綜合評價系統(tǒng)。然后運用綜合效果評價系統(tǒng)對滬(上海)寧(南京)高速常州段某處的路側(cè)標志進行了設(shè)置效果評價。
[Abstract]:Traffic signs, as safety facilities for controlling traffic and transmitting road network information, play an important role in modern road traffic management. Because of the characteristics of closed roads and fast driving speed of vehicles, traffic signs play an important role in modern road traffic management. At this stage, the main consideration of freeway traffic sign setting is the interaction between design setting parameters and driver's behavior. The impact of the traffic flow on the setting effect is not taken into account. But in practice, when the driver of a small car driving on the freeway is looking at the column traffic sign on the right side of the road, The line of sight is often blocked by large cars with large cars on the slow lane, causing "invalidation" of traffic signs. Therefore, when freeway signs are set up or rebuilt, It is urgent to consider the traffic flow factor and the factor that the sign is blocked by the big car at the same time. The key content of this paper is to simulate and analyze the traffic signs on the side of the road which are blocked by large vehicles. The research process is mainly divided into three stages, namely, the data collection stage. The stage of model system establishment and the stage of model system application. The data collection stage mainly summarizes the research angle, method and theoretical basis of the existing models both at home and abroad, and analyzes whether the scenario considered by the model is appropriate and comprehensive. Finally, considering the practical value of the results obtained from the model, the logical design of the model scene will be carried out at the stage of establishing the model system, and then the corresponding index parameters and influencing factors will be determined, and then an algorithm for judging whether the occlusion occurs or not will be worked out. Finally, the probability of each scene is studied. In the application stage of the model system, the actual road will be selected, and the model system will be used to analyze it, and at the same time, the problems encountered in the application will be feedback. On the basis of the above work, this paper constructs a road side sign occlusion model based on occlusion time, and combines with the existing freeway side sign design and setting theory. In this paper, a comprehensive evaluation system of traffic sign setting effect is established, which is the interaction of "guide sign, driver's operation behavior and traffic flow running state". Then the comprehensive effect evaluation system is applied to Shanghai (Shanghai) and Nanjing (Nanjing). The setting effect of the side signs in the section of Changzhou is evaluated.
【學(xué)位授予單位】:長安大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2014
【分類號】:U491.52

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