城市主干道平面交叉口公交優(yōu)先信號控制策略研究
發(fā)布時間：2018-10-13 15:42
【摘要】：隨著我國經(jīng)濟(jì)進(jìn)入快速發(fā)展期,城市居民對于出行的需求也隨之增長。同時,城市汽車的保有量在短期內(nèi)急劇增加,超過城市道路所能容納的通行能力,導(dǎo)致城市道路負(fù)擔(dān)過大,交通擁堵日益嚴(yán)重。在眾多的城市公共交通方式中,公交車以其載客量大、價格便宜、涵蓋面廣、成本低廉等優(yōu)點(diǎn),被視為解決市民出行需求的重要方式,因而保證公交車在交叉口處的優(yōu)先通行,減少公交車在交叉口處的延誤時間是公交優(yōu)先的首要目的,符合廣大人民的利益,本文就公交車在交叉口的優(yōu)先信號策略進(jìn)行研究,主要研究內(nèi)容如下:1、在充分借鑒國內(nèi)外研究成果的基礎(chǔ)上,首先對公交優(yōu)先和公交優(yōu)先信號進(jìn)行了介紹和區(qū)分,細(xì)述公交優(yōu)先信號的分類及其特點(diǎn),對現(xiàn)有的公交優(yōu)先信號控制方法進(jìn)行研究。其次,對公交優(yōu)先信號控制方法的適用環(huán)境提出了要求,通過研究現(xiàn)有的公交檢測技術(shù),并結(jié)合公交優(yōu)先信號策略,采用了基于感應(yīng)線圈檢測技術(shù)的檢測器對公交車輛進(jìn)行檢測。然后,對交叉口的車輛延誤進(jìn)行分析,作為評價信號控制方法優(yōu)劣的判定依據(jù)。最后,通過對城市客流量的分析,將公交優(yōu)先信號的控制在時間上劃分為高峰時段控制和非高峰時段控制。2、分別對公交車在非高峰時段和高峰時段采用不同的優(yōu)先信號控制方法進(jìn)行了研究。在非高峰時段的公交優(yōu)先信號采用優(yōu)化感應(yīng)控制的方法。當(dāng)感應(yīng)線圈檢測器檢測到公交車輛達(dá)到交叉口時,采用綠燈時間延長和壓縮的方法對公交車輛進(jìn)行優(yōu)先控制,減少公交車在交叉口處的等待時間;在高峰時段的公交優(yōu)先信號提出基于模糊邏輯的控制方法,將社會車輛和公交車輛在交叉口的排隊長度對于信號的影響程度做不同的劃分,使公交車排隊長度對信號的影響大于社會車輛,以體現(xiàn)公交車輛在交叉口的優(yōu)先,并將兩者作為輸入設(shè)計了相位需求強(qiáng)度模糊控制器,輸出下一綠燈相位,對交叉口的信號相位進(jìn)行動態(tài)控制,減少公交車輛在交叉口處的排隊時間;3、使用交通仿真軟件TransModeler和MATLAB對西安市小寨十字交叉口的非高峰時段和高峰時段信號控制策略進(jìn)行仿真,仿真結(jié)果表明,本文所提出的控制方法相對于定時控制具有一定的優(yōu)越性。
[Abstract]:With the rapid development of China's economy, urban residents' demand for travel has also increased. At the same time, the number of urban cars increases rapidly in the short term, which exceeds the capacity of urban roads, resulting in excessive burden on urban roads and increasingly serious traffic congestion. Among the many urban public transportation modes, the bus is regarded as an important way to meet the needs of citizens because of its large capacity, low price, wide coverage and low cost, thus ensuring the priority of bus traffic at intersections. Reducing the delay time of buses at intersections is the primary purpose of bus priority, which is in the interests of the masses of people. This paper studies the priority signal strategy of buses at intersections. The main research contents are as follows: 1. Based on the domestic and foreign research results, first of all, the bus priority and bus priority signal are introduced and distinguished, and the classification and characteristics of the bus priority signal are described in detail. The existing bus priority signal control methods are studied. Secondly, the application environment of bus priority signal control method is put forward. By studying the existing bus detection technology, and combining with the bus priority signal strategy, A detector based on induction coil detection technology is used to detect public transport vehicles. Then, the vehicle delay at the intersection is analyzed as the basis for evaluating the signal control method. Finally, through the analysis of the urban passenger flow, The control of bus priority signal is divided into peak time control and off-peak time control. 2. Different priority signal control methods are studied in off-peak and off-peak periods. The optimal induction control method is used for the bus priority signals during off-peak hours. When the inductive coil detector detects that the bus reaches the intersection, the method of extending and compressing the green time is adopted to control the bus first, so as to reduce the waiting time of the bus at the intersection. A fuzzy logic based control method is proposed for the bus priority signal in the rush hour. The influence degree of the queue length of the social vehicle and the bus vehicle at the intersection is divided differently. The influence of bus queue length on signal is greater than that of social vehicle, so as to reflect the priority of bus vehicle at intersection, the fuzzy controller of phase demand intensity is designed as input, and the next green phase is output. The signal phase of the intersection is dynamically controlled to reduce the queue time of the bus at the intersection. 3. Using the traffic simulation software TransModeler and MATLAB to simulate the signal control strategy in the off-peak and peak time of Xiaozhai intersection in Xi'an. Simulation results show that the proposed control method has some advantages over timing control.
【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】：2015
【分類號】：U491.54
本文編號：2269140
[Abstract]:With the rapid development of China's economy, urban residents' demand for travel has also increased. At the same time, the number of urban cars increases rapidly in the short term, which exceeds the capacity of urban roads, resulting in excessive burden on urban roads and increasingly serious traffic congestion. Among the many urban public transportation modes, the bus is regarded as an important way to meet the needs of citizens because of its large capacity, low price, wide coverage and low cost, thus ensuring the priority of bus traffic at intersections. Reducing the delay time of buses at intersections is the primary purpose of bus priority, which is in the interests of the masses of people. This paper studies the priority signal strategy of buses at intersections. The main research contents are as follows: 1. Based on the domestic and foreign research results, first of all, the bus priority and bus priority signal are introduced and distinguished, and the classification and characteristics of the bus priority signal are described in detail. The existing bus priority signal control methods are studied. Secondly, the application environment of bus priority signal control method is put forward. By studying the existing bus detection technology, and combining with the bus priority signal strategy, A detector based on induction coil detection technology is used to detect public transport vehicles. Then, the vehicle delay at the intersection is analyzed as the basis for evaluating the signal control method. Finally, through the analysis of the urban passenger flow, The control of bus priority signal is divided into peak time control and off-peak time control. 2. Different priority signal control methods are studied in off-peak and off-peak periods. The optimal induction control method is used for the bus priority signals during off-peak hours. When the inductive coil detector detects that the bus reaches the intersection, the method of extending and compressing the green time is adopted to control the bus first, so as to reduce the waiting time of the bus at the intersection. A fuzzy logic based control method is proposed for the bus priority signal in the rush hour. The influence degree of the queue length of the social vehicle and the bus vehicle at the intersection is divided differently. The influence of bus queue length on signal is greater than that of social vehicle, so as to reflect the priority of bus vehicle at intersection, the fuzzy controller of phase demand intensity is designed as input, and the next green phase is output. The signal phase of the intersection is dynamically controlled to reduce the queue time of the bus at the intersection. 3. Using the traffic simulation software TransModeler and MATLAB to simulate the signal control strategy in the off-peak and peak time of Xiaozhai intersection in Xi'an. Simulation results show that the proposed control method has some advantages over timing control.
【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】：2015
【分類號】：U491.54
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，本文編號：2269140
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