【摘要】：“交通運(yùn)輸”——由始至終是人類發(fā)展進(jìn)步的重要物質(zhì)基礎(chǔ)。隨著國民經(jīng)濟(jì)的快速發(fā)展，“交通運(yùn)輸”也在迅猛發(fā)展著。高速公路——公路交通運(yùn)輸領(lǐng)域的基礎(chǔ)，建設(shè)耗資巨大。道路通行能力是公路基礎(chǔ)建設(shè)規(guī)模的主要決策依據(jù)。因此，對高速公路通行能力進(jìn)行系統(tǒng)、全面、合理地研究剖析尤為重要。 本文針對我國高速公路運(yùn)行的特殊性，通過對通行能力主要影響因素及其作用特點(diǎn)分析，從宏觀的角度總結(jié)高速公路車流特性影響源，分析關(guān)鍵因素之間的相互干擾及其影響關(guān)系，闡述了車速離散性這一重點(diǎn)影響因素的作用機(jī)理。介紹通行能力基本模型發(fā)展情況，分析模型變化特點(diǎn)，指出我國高速公路通行能力分析的特殊性�；谠詣訖C(jī)模型建立高速公路基本路段通行能力模型，包括道路建模和車輛建模。結(jié)合我國高速公路車輛運(yùn)行規(guī)律賦予模型演變規(guī)則，研究不同車型、不同換道規(guī)則下車流運(yùn)行狀態(tài)及演變規(guī)律。采用MATLAB軟件對所建立模型編程仿真模擬，，通過控制改變輸入條件，模擬分析其運(yùn)行中車速離散性的效用結(jié)果、車速離散性和車道變換的作用關(guān)系，最終得出不同限制條件下高速公路實(shí)際通行能力。 本文研究成果有助于高速公路通行能力分析系統(tǒng)化，使得高速公路通行能力更符合我國現(xiàn)實(shí)情況。對滿足我國現(xiàn)階段高速公路管理需求及高速公路的近遠(yuǎn)期規(guī)劃建設(shè)有一定的現(xiàn)實(shí)意義。
[Abstract]:Transportation-from beginning to end, is an important material basis for human development and progress. With the rapid development of the national economy, "transportation" is also developing rapidly. Highway-the foundation of the highway transportation field, the construction cost is huge. Road capacity is the main decision-making basis for the scale of highway infrastructure construction. Therefore, it is very important to study and analyze the expressway capacity systematically and reasonably. In view of the particularity of expressway operation in our country, this paper analyzes the main influencing factors of traffic capacity and its function characteristics, and sums up the influence sources of traffic flow characteristics of expressway from the macroscopic point of view. This paper analyzes the mutual interference among the key factors and the relationship between them, and expounds the action mechanism of the key influencing factors, the speed dispersion. This paper introduces the development of the basic capacity model, analyzes the changing characteristics of the model, and points out the particularity of the highway capacity analysis in China. Based on cellular automata model, the capacity model of basic section of expressway is established, including road modeling and vehicle modeling. Combined with the model evolution rules given by the operation law of expressway vehicles in China, the running state and evolution rule of traffic flow under different vehicle types and different lane changing rules are studied. The model was programmed and simulated with MATLAB software. By controlling and changing the input conditions, the utility results of vehicle speed dispersion and the relationship between speed dispersion and lane change were simulated and analyzed. Finally, the actual capacity of expressway under different restriction conditions is obtained. The research results of this paper are helpful to systematize the analysis of expressway capacity and make the expressway capacity more in line with the reality of our country. It is of practical significance to meet the demand of expressway management and the short-term and long-term planning and construction of expressway at the present stage of our country.
【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

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