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—基本相位差。即:O39。該系統(tǒng)是一個微觀的、以車輛駕駛行為為基礎(chǔ)的交通仿真軟件。論文中還有很多不嚴(yán)謹?shù)牡胤?,希望自己能在今后的學(xué)習(xí)中愈發(fā)嚴(yán)謹與完善,取得更大的進步!6 致謝在北方工業(yè)大學(xué)美好的四年學(xué)習(xí)、生活就要結(jié)束了,轉(zhuǎn)眼已畢業(yè)在即,在這里謹向在求學(xué)期間給予我關(guān)心、支持和幫助的師長、朋友及家人致以誠摯的謝意。雖然寬敞空間資源容納交叉口行人和自行車之間或機動車的需求,合理的交通渠化不夠,空間資源的效用低,并嚴(yán)重的交叉口沖突極大地限制了通行能力()。Ap+Qb玉帶橋路口位于成都的羅馬室中心業(yè)商業(yè)區(qū)。INTERSECTION TRAFFIC CHANNELIZATION MODE BASED ON HARMONIOUS TRAFFICAbstract:Based on the characteristics and aims of harmonious traffic,this paper analyzes the characteristics of intersection traffic channelization. Considering the serious traffic conflict resulted from mixed traffic of Cheng Du. This paper observes the basic principles which guarantee traffic safety and furthest improve intersection capacity, emphasizes the safety and convenience for pedestrian and bicyclist crossing, bines the traffic channelization design with urban landscape design to emphasize the environmental benefits of intersection. This paper discussed mainly the theory and methods of traffic channelization including the organization of temporal and spatial separation of motor and nonmotor, the traffic island design and so on and finally put forward the original intersection traffic channelization mode , which is safe, efficient, convenient and environmental and successfully applied to the project of Yu Daiqiao intersection reconstruction.Key words: Traffic Channelization, Harmonious Traffic, Intersection1 IntroductionWith regard to the mixed traffic characteristics in China, like Chengdu which has a high density of population, a large proportion of bicycling travel and serious conflicts between motor and nonmotor, a scientific and effective traffic channelization model is urgently demanded, which can enhance the safety and capacity of intersections and the convenience of pedestrian and bicyclist behavior, and bine the traffic channelization with the landscape design to optimize the prehensive benefits and construct the harmonious traffic.2 Intersection Traffic Channelization Characteristics Based on Harmonious TrafficInChengdu Urban Transport Development White Paper(2005), we put forward that the strategic concept is to construct harmonious traffic, of which two basic characteristics are humanism and environmentalism and three critical objectives are safety, convenience and environmentalism are as follows.1) Service pattern which fully protects the weak transportation munity. In view of released traffic energy risk degree of different traffic modes, the pedestrians and bicyclists are classified as weak transportation munity and the service level gradually increases according to the rank of private car, public transportation, bicyclist and pedestrian respectively.2) SafetyWith the aid of traffic island and legible traffic signs, the distinct distinction of temporal and spatial rights among pedestrians, bicyclists and motors can be achieved to enhance traffic safety.3) People orientedThe design of traffic islands and nonbarrier facility and so on should meet the demand of human behavior, and pay attention to the demand of disable group. 4) The Optimization of capacityIt is effective to optimize intersection capacity by reducing conflicting area, advancing the stop line, reasonably arranging the entry and exit approaches.5) Environment friendlyTraffic channelization should be connected with landscape design and the humanity design to improve the environmental benefit of intersections.3 A Case Study of Chengdu Analysis on intersection and its traffic demand characteristics of Chengdulevel of roadRoadRestrictionLine(m)????Area(m178。 Sa—safety coefficient 。. Though the modious intersection space resources acmodate the interchanging demand between pedestrians and bicycles or motors, the lack of reasonable traffic channelization, the low utility of space resources, and the serious conflict greatly restrict the intersection capacity(). Temporal and spatial separation of motor and nonmotorized traffic Temporal and spatial separation of motor and nonmotorAccording to the modious space resources and the serious traffic conflict, temporal and spatial separation of motor and nonmotor should be conducted at intersections to classify the road rights of pedestrians, bicycles and motors in time and space. With regard to the spatial road rights the motors, pedestrians and bicycles should be restricted to travel in different areas and bicycles travel anticlockwise while the pedestrians get a bidirectional crossing (). Placement of Entry and Exit lanesThe number of entry lanes should more than the exit. Methods that can be adopted to add entry lanes include offsetting median pavement marking, enlarging the entry approaches or removing the median closure while considering matching the number of entry lanes with road capacity. The suggested proportion of the number of entry lanes to that of lanes on road in signal direction is 1:1~2:1 (). methods to add entry lanesTable 2 Relationship between lanes on road (one way) and entry lanes at intersectionRoadways of road ??one way??12345corresponding intersection entrance roadways??≥2≥2≥3≥4≥5 Traffic Island Design1)the location of traffic islandThe location of traffic island should reasonably guide motor and nonmotor traffic flow, reduce the severity of conflict, ensure security and enhance the capacity. The location of island is related to the placement of advanced rightturn lane. When the angle of two crossing roads is less than 75176。在西部和北部入口處實行單向交通管制辦法減少了無障礙道路和交通流過大的結(jié)果。Ab)Sa)行人數(shù)量(人/小時)雙向自行車數(shù)量(輛/小時)雙向??機動車數(shù)量(輛/小時)沖突面積(m2)公路干線40~603000~45001000~20003000~50002500~45002000~3000 時間和空間的機動車和非機動車的分離 機動車和非機動車交通的時空分離根據(jù)要有限的空間資源和嚴(yán)重的交通沖突,機動車與非機動車的時空分離應(yīng)當(dāng)在交叉口把行人、 自行車和機動車的道路權(quán)利在時間和空間進行分類。你們的鼓勵、支持和無私的愛讓我安心的完成學(xué)業(yè)。對一些交叉口設(shè)計、交通控制方案設(shè)計和信息采集系統(tǒng)設(shè)置實施之前,可以利用 VISSIM 仿真軟件對不同的設(shè)計方案進行模擬和評價?!拚蟮南辔徊?。 g(C)——周期長C的函數(shù)。 圖21 相位差示意圖相對時差是指相鄰兩信號綠燈或紅燈的起點或終點之間的時間之差。一個階段可以包括一個或多個信號相位,這些信號相位不相互沖突。但是該方法并沒給出如何協(xié)調(diào)交叉口級和區(qū)域級直接的協(xié)調(diào)