【摘要】：近年來(lái),伴隨著我國(guó)經(jīng)濟(jì)的發(fā)展和城市化的推進(jìn),城市的機(jī)動(dòng)車(chē)保有量也在持續(xù)增加,與機(jī)動(dòng)車(chē)的快速增長(zhǎng)形成對(duì)比的是城市道路基礎(chǔ)建設(shè)及管理水平發(fā)展的相對(duì)滯后,這些問(wèn)題共同導(dǎo)致了城市的嚴(yán)重?fù)矶?直接影響了人們的出行,造成出行延誤的增加和出行速度的降低。此外,道路交通仍面臨著交通安全和環(huán)境污染等問(wèn)題。由于道路設(shè)施建設(shè)的周期長(zhǎng)、速度慢,所以,解決上述交通問(wèn)題主要依靠提升城市的交通管理水平和加快發(fā)展公共交通。交叉口作為交通分析中的重要節(jié)點(diǎn),各個(gè)交叉口的信號(hào)配時(shí)智能化控制是提高交叉口與干線(xiàn)的通行效率的重要方法。首先,通過(guò)調(diào)整信號(hào)配時(shí),可以保障公交優(yōu)先通行,從而降低公交車(chē)輛的延誤,公交服務(wù)水平得到提升；此外,各個(gè)交叉口信號(hào)配時(shí)的協(xié)調(diào)控制可實(shí)現(xiàn)干線(xiàn)交通流連續(xù)運(yùn)行,提高干線(xiàn)交通的通行能力,從而緩解交通擁堵。干線(xiàn)協(xié)調(diào)下的公交優(yōu)先可以實(shí)現(xiàn)公交車(chē)輛利益最大化,但是,研究人員已經(jīng)發(fā)現(xiàn),公交優(yōu)先也會(huì)給整個(gè)干線(xiàn)帶來(lái)交通問(wèn)題,而前人對(duì)這一影響的研究尚有一些不足之處,鑒于此,本文展開(kāi)了學(xué)術(shù)研究。本文闡述了交通干線(xiàn)協(xié)調(diào)下的公交優(yōu)先方法,研究了公交優(yōu)先的兩種策略-綠燈早啟與綠燈延長(zhǎng),以綠燈時(shí)間為關(guān)鍵因素進(jìn)行敏感度分析,在此基礎(chǔ)上獲得干線(xiàn)協(xié)調(diào)的路段的最優(yōu)綠燈變化時(shí)長(zhǎng)。此外,當(dāng)路段流量與公交車(chē)輛比例產(chǎn)生變化時(shí),分析公交優(yōu)先策略引發(fā)的車(chē)均延誤、人均延誤、停車(chē)次數(shù)與排隊(duì)長(zhǎng)度的變化,根據(jù)交通綜合效益指標(biāo)獲得各種情形下的最優(yōu)綠燈變化時(shí)長(zhǎng)。與此同時(shí),完善觸發(fā)公交優(yōu)先策略的前提條件,包含路段流量與公交車(chē)輛比例兩個(gè)方面。然后,根據(jù)敏感度分析的結(jié)果,以交通特性評(píng)價(jià)指標(biāo)提升為目標(biāo),對(duì)公交優(yōu)先策略流程進(jìn)行了改進(jìn)與完善,平衡了公交與社會(huì)車(chē)輛的利益,提升干線(xiàn)的通行效率。
[Abstract]:In recent years, with the development of China's economy and the advancement of urbanization, the number of motor vehicles in cities continues to increase. In contrast with the rapid growth of motor vehicles, the development of urban road infrastructure and the level of management lags behind. These problems lead to serious congestion in the city, directly affect people's travel, lead to the increase of travel delay and the decrease of travel speed. In addition, road traffic is still facing problems such as traffic safety and environmental pollution. Because of the long cycle and slow speed of road facilities construction, solving the above traffic problems mainly depends on improving the level of urban traffic management and speeding up the development of public transport. Intersection as an important node in traffic analysis, signal timing intelligent control of each intersection is an important method to improve the traffic efficiency of intersections and trunk lines. First of all, by adjusting the signal timing, the priority of public transport can be guaranteed, thus reducing the delay of public transport vehicles, and improving the level of public transport services. In addition, the coordinated control of signal timing at each intersection can realize the continuous operation of the trunk traffic flow, improve the traffic capacity of the trunk line, and alleviate the traffic congestion. Bus priority under the coordination of trunk lines can maximize the benefits of public transport vehicles, but researchers have found that bus priority will also bring traffic problems to the whole trunk line, and there are still some shortcomings in previous studies on this impact. In view of this, this article has carried on the academic research. This paper expounds the method of bus priority under the coordination of main traffic lines, studies two strategies of bus priority-green early start and green light prolongation, and makes sensitivity analysis with green light time as the key factor. On this basis, the optimal green light length of the trunk coordinated section is obtained. In addition, when the ratio of road flow to bus is changed, the changes of bus delay, per capita delay, the number of parking and queue length caused by bus priority strategy are analyzed. According to the traffic comprehensive benefit index, the optimal green light changing time is obtained under various circumstances. At the same time, perfect the prerequisite of triggering bus priority strategy, including road flow and bus vehicle ratio two aspects. Then, according to the results of sensitivity analysis, aiming at improving the evaluation index of traffic characteristics, the priority strategy flow of public transport is improved and perfected, which balances the interests of public transport and social vehicles, and improves the traffic efficiency of the trunk line.
【學(xué)位授予單位】：東南大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類(lèi)號(hào)】：U491.54

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本文編號(hào)：2446571