本文選題：高速公路隧道 + 異常事件　； 參考：《重慶大學(xué)》2015年碩士論文

【摘要】：由于高速公路隧道作為路段的特殊構(gòu)造物具有與開(kāi)放路段不同的特點(diǎn),易于發(fā)生交通異常事故,一旦發(fā)生事故由于其救援難度較大,使得整個(gè)路段的安全性及通行能力均會(huì)受到影響。當(dāng)隧道發(fā)生異常事故,交通管理者對(duì)其發(fā)展的趨勢(shì)不能明確掌握,因此對(duì)高速公路隧道條件下典型情況的異常事件的模擬能夠讓交通管理者直觀的了解事件的發(fā)展趨勢(shì),為交通管理者在以后處理相似事件情況提供支持。目前國(guó)內(nèi)外對(duì)于異常事件的影響分析的研究對(duì)象多是基于城市路網(wǎng)以及高速公路基本路段等,而以隧道作為研究對(duì)象,對(duì)交通異常事件的影響進(jìn)行分析的情況較少,本文選取渝武路北碚隧道作為研究對(duì)象,運(yùn)用Trans Modeler對(duì)典型事件產(chǎn)生的影響進(jìn)行模擬。針對(duì)隧道的特殊性對(duì)隧道交通異常事件特征進(jìn)行分析,基于交通事件的基本屬性對(duì)隧道的影響進(jìn)行分析,建立相應(yīng)模型對(duì)典型事件進(jìn)行模擬并對(duì)效果進(jìn)行分析。具體內(nèi)容包括:①針對(duì)高速公路隧道的特殊性,對(duì)高速公路隧道的行車環(huán)境特點(diǎn)、隧道車輛行駛特點(diǎn)、駕駛員生理心理變化特點(diǎn)進(jìn)行分析,為模型輸入中的路段屬性和駕駛員行為提供支持;對(duì)隧道異常事件在時(shí)間和空間上的分布特征進(jìn)行了分析,為典型事件場(chǎng)景選取提供了依據(jù)。②針對(duì)高速公路隧道異常事件的基本屬性對(duì)高速公路隧道的影響進(jìn)行了分析。分析不同事件屬性情況下交通流基本參數(shù)(流量、速度、占有率)在時(shí)間上的變化情況和變化持續(xù)的時(shí)間,以及異常事件的影響范圍在空間上的傳播特性,分析表明異常事件的發(fā)生對(duì)交通流基本參數(shù)會(huì)產(chǎn)生變化。③針對(duì)隧道這一特殊環(huán)境對(duì)模擬方案進(jìn)行設(shè)計(jì),首先運(yùn)用Trans Modeler建立隧道模擬模型,給出了模擬參數(shù)預(yù)處理方法,并利用交通流參數(shù)的變化規(guī)律特點(diǎn)對(duì)模型輸入和模型輸出進(jìn)行了設(shè)計(jì)。其次根據(jù)隧道異常事件時(shí)空分布特性選取了不同的典型事件場(chǎng)景,并對(duì)不同場(chǎng)景進(jìn)行模擬分析,根據(jù)相對(duì)誤差絕對(duì)值等評(píng)價(jià)指標(biāo),分析并對(duì)比了模型效果。應(yīng)用結(jié)果表明:論文建立的上述模擬方法能夠?qū)崿F(xiàn)對(duì)典型事件場(chǎng)景的模擬,模擬的結(jié)果符合真實(shí)道路事件后的交通演化情況,既能模擬交通流隨時(shí)間的變化,又能模擬排隊(duì)長(zhǎng)度在道路空間上的變化,證實(shí)了模擬方法的有效性。
[Abstract]:As the special structure of highway tunnel is different from the open section, it is easy to occur abnormal traffic accidents. Once the accident occurs, it is difficult to rescue. The safety and capacity of the whole section will be affected. When an abnormal accident occurs in a tunnel, the traffic manager can not clearly grasp the trend of its development, so the simulation of the unusual event in the typical situation under the condition of the highway tunnel can make the traffic manager know the developing trend of the event directly. Provide support to traffic managers in handling similar incidents at a later date. At present, the research object of the influence analysis of abnormal events at home and abroad is mostly based on the urban road network and the basic section of highway, but the tunnel is taken as the research object, the impact of the traffic abnormal events is less. In this paper, Beibei Tunnel of Yuwu Road is selected as the research object, and Trans Modeler is used to simulate the influence of typical events. According to the particularity of tunnel, the characteristics of tunnel traffic abnormal events are analyzed. Based on the basic properties of traffic events, the influence of tunnel is analyzed, and the corresponding model is established to simulate the typical events and analyze the effects. The specific contents include: according to the particularity of expressway tunnel, the characteristics of driving environment, driving characteristics of tunnel vehicles, physiological and psychological changes of drivers are analyzed. It provides support for the road attribute and driver behavior in model input, and analyzes the distribution characteristics of tunnel abnormal events in time and space. This paper provides a basis for the selection of typical event scene and analyzes the influence of the basic attributes of the abnormal event in expressway tunnel on the expressway tunnel. This paper analyzes the changes in time and duration of traffic flow basic parameters (flow, speed, occupancy) under different event attributes, as well as the propagation characteristics of the influence range of abnormal events in space. The analysis shows that the occurrence of abnormal events will change the basic parameters of traffic flow. 3. For the special environment of tunnel, the simulation scheme is designed. Firstly, Trans Modeler is used to establish the tunnel simulation model, and the preprocessing method of simulation parameters is given. The model input and model output are designed according to the characteristics of traffic flow parameters. Secondly, different typical event scenarios are selected according to the time-space distribution characteristics of tunnel abnormal events, and different scenarios are simulated and analyzed, and the effects of the model are analyzed and compared according to the evaluation indexes such as the absolute value of relative error. The application results show that the above simulation method can simulate the typical event scene, and the simulation results accord with the traffic evolution after real road events, which can simulate the change of traffic flow with time. The variation of queue length in road space can also be simulated, which proves the effectiveness of the simulation method.
【學(xué)位授予單位】：重慶大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：U491

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