基于微觀仿真的城市交叉口排放研究
本文選題:微觀交通仿真 切入點(diǎn):機(jī)動(dòng)車排放評(píng)估 出處:《長(zhǎng)安大學(xué)》2015年碩士論文 論文類型:學(xué)位論文
【摘要】:近年來(lái)隨著交通運(yùn)輸體系的快速發(fā)展,城市交通擁堵與污染問題日益加劇。城市交叉口由于其地理位置及交通量密集的特征,其空氣污染程度較其他道路區(qū)域嚴(yán)重很多。精確量化機(jī)動(dòng)車的排放是治理交通污染及采取相應(yīng)對(duì)策的重要參考依據(jù),也為空氣質(zhì)量評(píng)價(jià)以及行人的暴露危害提供了研究基礎(chǔ)。為了精確量化機(jī)動(dòng)車排放,將交通仿真模型VISSIM與排放模型MOVES集成,搭建了機(jī)動(dòng)車排放評(píng)估平臺(tái)。結(jié)合調(diào)研數(shù)據(jù),建立了基于VISSIM的交叉口仿真模型;考慮MOVES模型的輸入?yún)?shù)需求,對(duì)VISSIM仿真輸出數(shù)據(jù)進(jìn)行處理;參照MOVES模型中運(yùn)行工況區(qū)間的定義,計(jì)算出交叉口機(jī)動(dòng)車的運(yùn)行工況分布,并作為排放計(jì)算的輸入?yún)?shù)導(dǎo)入MOVES,從而得到高分辨率量化的交叉口機(jī)動(dòng)車排放。利用已搭建的平臺(tái),選取有信號(hào)控制的典型城市平面十字交叉口進(jìn)行仿真,得到了機(jī)動(dòng)車排放污染物CO、HC、NOx、PM10和PM2.5的排放清單,并對(duì)其空間分布、時(shí)間分布以及污染物特征進(jìn)行了分析。并在排放清單的基礎(chǔ)上,提出交叉口的交通優(yōu)化措施,選取了交叉口禁左以及機(jī)動(dòng)車限行政策利用評(píng)估平臺(tái)進(jìn)行了減排能力評(píng)估,得到交叉口禁左以及機(jī)動(dòng)車限行對(duì)機(jī)動(dòng)車污染物的削減都具有一定程度的正面作用。
[Abstract]:In recent years, with the rapid development of transportation system, the problems of urban traffic congestion and pollution are becoming more and more serious. The degree of air pollution is much more serious than other road areas. Accurate quantification of motor vehicle emissions is an important reference for controlling traffic pollution and taking corresponding countermeasures. In order to accurately quantify vehicle emissions, the traffic simulation model (VISSIM) is integrated with the emission model (MOVES) to build a vehicle emission assessment platform. The simulation model of intersection based on VISSIM is established. Considering the requirement of input parameters of MOVES model, the output data of VISSIM simulation are processed. According to the definition of operating condition interval in MOVES model, the distribution of motor vehicle operating conditions at intersection is calculated. As the input parameters of emission calculation, the motor vehicle emissions of high resolution and quantification are obtained. Using the built platform, the typical urban crossroads with signal control are selected for simulation. The emission inventory of motor vehicle emission pollutant COHCOHCOHCOHCOHCONXN XN PM10 and PM2.5 is obtained, and its spatial distribution, time distribution and pollutant characteristics are analyzed. Based on the emission inventory, the traffic optimization measures at intersection are proposed. The evaluation platform of the left intersections and the vehicle restriction policy is selected to evaluate the emission reduction ability. The results show that the left intersections and the motor vehicle restrictions have a positive effect on the reduction of vehicle pollutants to a certain extent.
【學(xué)位授予單位】:長(zhǎng)安大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2015
【分類號(hào)】:U491.92;X734.2
【共引文獻(xiàn)】
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