CN100495471C - Detector layout method for urban traffic signal control system - Google Patents

Detector layout method for urban traffic signal control system Download PDF

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CN100495471C
CN100495471C CN 200710055341 CN200710055341A CN100495471C CN 100495471 C CN100495471 C CN 100495471C CN 200710055341 CN200710055341 CN 200710055341 CN 200710055341 A CN200710055341 A CN 200710055341A CN 100495471 C CN100495471 C CN 100495471C
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detector
intersection
lane
traffic
strategy
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CN 200710055341
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CN101025861A (en
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宋现敏
景春光
曲昭伟
李志慧
杨少辉
王殿海
陈永恒
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吉林大学
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Abstract

本发明公开了一种城市交通信号控制系统中检测器的布设方法。 The present invention discloses a method for laying an urban traffic signal control system of the detector. 包括下列步骤:1)确定快速路、主干道、次干道和支路的道路类型;2)确定战略交叉口、战术交叉口、一般交叉口和敏感交叉口的交叉口类型;3)确定整个城市布设战略检测器、战术检测器、感应检测器的类型、大小、数量和确定布设相应检测器在各类型道路上的位置与数量;4)安装战略检测器、战术检测器和感应检测器,并用电线或光缆依次将其和其它设备连接起来;5)在自行车的专用车道上安装检测自行车流量情况的检测器,并用电线或光缆将其和其它设备连接起来。 Comprising the following steps: 1) determining the expressway, main roads, secondary roads and road type branch; 2) to determine the type of intersection intersection strategic, tactical intersection, general and sensitive intersection intersection; 3) determine the entire city laying strategy detector, tactical detector, type inductive sensors, size, number, and determining layout position and a corresponding number of detectors in each of the types of roads; 4) mounted strategy detector, tactical detector and sensor detector, and with wire or cable and which in turn is connected to other devices together; 5) mounted detector detects bicycle traffic situation on a bicycle lanes, and the wire or cable and its connecting other devices. 其有益效果是在城市路网中布设尽量少的检测器就能获得要求的精度和完整的交通数据,这对于交通控制系统的建设非常重要。 The beneficial effect is laid as little as possible detector in urban road network will be able to get the accuracy and integrity of traffic data requirements, which for the traffic control system construction is very important.

Description

城市交通信号控制系统中检测器的布设方法 Urban traffic signal control system, the method for laying detector

技术领域 FIELD

本发明涉及一种城市交通管理系统中交通控制的基础数据的获取方法,更具体的说是涉及一种城市交通信号控制系统中检测器的布设方法。 The present invention relates to a data base system in an urban traffic management method for obtaining traffic control, and more particularly, it relates to a method for laying urban traffic signal control system of the detector. 背景技术 Background technique

检测器是采集流量、速度、车型、占有率等交通参数的重要手段。 Detector is an important means to collect traffic flow parameters, speed, models, market share, etc. 目前常用的车辆检测器主要工作原理是检测因汽车的运动或存在而引起的能量变化。 The most commonly used operating principle vehicle detector detects changes in energy due to the presence of a sports car or caused. 城市交通管理系统中所用的检测器主要分为固定式和移动式两种,其中固定式检测器对交通信息采臭的方式有:U)采用磁频检测技术,(2)采用波频检测技术,(3)采用视频检测技术;国内外采用的移动交通信息采集方式主要包括:(l)电子标签检测技术,(2)GPS检测技术。 Urban traffic management system used in the detector is divided into two kinds of fixed and mobile, stationary detector pair wherein the traffic information collected smell methods are: U) adopts a magnetic frequency detection technology, (2) Frequency Wave Detection , (3) use of video detection; domestic and mobile traffic information collection mode used include: (l) electronic tag detection technology, (2) GPS detection. 由于环形线圏检测器技术成熟,易于掌握,检测精度高,可全天候工作,设备价格低等特点被广泛应用在城市交通控制系统中。 Since the ring line rings of detector technology is mature, easy to master, high precision, all-weather work, equipment and low prices are widely used in urban traffic control system.

智能交通系统(ITS)是解决城市交通问题的有效方法之一。 Intelligent Transportation Systems (ITS) is an effective way to solve urban traffic problems. ITS的实质是通过先进的技术,收集交通参与者、车辆、道路系统和交管部门等各个交通要素的实时信息,并使这些信息在上述要素之间有效的流动,从而强化彼此的协调工作能力,达到从整体上提高交通系统运作效率的目的。 ITS essence is through advanced technology to collect real-time traffic information for each element of road users, vehicles, road systems and traffic control departments and make them effective flow of information between the elements, thereby strengthening the ability to coordinate each other's work, the purpose of improving the operational efficiency of the traffic system as a whole. 交通数据采集是ITS的基础,它为ITS其它组成部分的有效运行提供重要的数据支撑。 Traffic data collection is the basis of ITS, it is important to provide data support for the effective operation of the other components of the ITS.

道路交通系统数据的采集是利用布设在路网节点之间的车辆检测器进行实时检测获得。 Road traffic data collection system is laid between the use of the road network nodes vehicle detector to get real-time detection. 要想获得城市交通系统运作的完整数据。 To get the complete data urban transport system works. 就必须在城市路网的相应路段布设检测器。 Detector must be laid in the corresponding section of the city road network. 但是由于城市发展,覆盖区域越来越广,城市路网的密度也越来越大,如果要在每个路段上都布设检测器,所需的花费将是非常惊人的。 However, due to urban development, increasingly wide coverage area, urban road network density is also growing, if you want to have laid detector on each section, the required cost will be very alarming. 所以,如何根据城市道路网的拓朴结构和各个路段交通参数之间的内在关系,在路网中布设尽量少的检测器就能获得给定精度和完整的交通数据,这对于交通控制系统的建设非常重要。 So, how the intrinsic relationship between the urban road network topology and the various road traffic parameters laid detector as little as possible in the network and will be able to obtain a given accuracy and integrity of data traffic, which for the traffic control system construction is very important. 基于上述原因,建立一种检测器优化的布设方法势在必4亍。 For these reasons, establishment of a method for detecting an optimized layout of the right foot 4 is inevitable.

发明内容 SUMMARY

本发明所要解决的技术问题是克服现有技术中所存在的见交叉口就布设检测器的问题, 提供一种在路网中布设尽量少的检测器就能获得给定精度和完整的交通数据的城市交通信号控制系统中检测器的布设方法。 The present invention solves the technical problem to overcome the problems present in the prior art to see laid intersection detector is provided a layout of the detector to minimize the road network traffic data can be obtained for a given accuracy and integrity Designing method detector urban traffic signal control system.

为解决上迷技术问题,本发明采用如下技术方案予以实现。 In order to solve the above-technical problem, the present invention adopts the following technical solution be implemented. 本发明采用的技术方案包括下列步骤: The present invention adopts the technical solution comprising the steps of:

1 )根据城市交通路网中道路特性、等级和道路交通流的分布情况确定快速路、主千道、 次干道和支路的道路类型; 1) According to the city road traffic network characteristics, grade and distribution of traffic flow to determine expressway, the main one thousand, secondary roads and road type branch;

2)根据城市交通路网中道路特性、等级和交叉口交通流的分布情况确定战略交叉口、战术交叉口、 一般交叉口和敏感交叉口的交叉口类型; 2) According to the city road traffic network characteristics, the distribution of grades and intersection traffic flow to determine the type of intersection intersection strategic, tactical intersection, general and sensitive intersection intersection;

3) 根据城市交通路网中各类型交叉口的数量、城市交通路网中交通流的分布情况与交通流的相关性确定整个城市布设战略检测器、战术检测器、感应检测器的类型、大小、数量和确定把相应检测器布设在各类型道路上的位置与数量; 3) According to the correlation to determine the number of urban traffic network in various types of intersection of the distribution of urban traffic network traffic flow and traffic flow throughout the city laid detector strategic, tactical detector, the detector type sensor, the size , and determines the corresponding number of detectors arranged on the various types of roads and the number of positions;

4) 安装战略检测器、战术检测器和感应检测器,并用电线、光缆或无线依次将检测器, 信号机,信号灯连接起来; 4) a detector installation strategic, tactical sensor detector and the detector, and the wire, cable or wireless sequentially detector signal, lights connected;

5) 在自行车的专用车道上安装检测自行车流量情况的检测器,并用电线、光缆或无线依次将检测器,信号机,信号灯连接起来。 5) mounted on the bicycle lanes of traffic conditions detected bicycle detector, and wire, cable or wireless sequentially detector signal, lights connected.

技术方案中所述的布设战略检测器是在战略交叉口的各个进口道上布设战略检测器,原则上路段每一车道都需布设,若车道车辆分配比例相似可只在路段的中间车道上布设战略检测器,并在交叉口渠化区内每车道上布设感应检测器;所述的布设战术检测器是在战术交叉口的各个进口道上布设战术检测器,原则上路段每一车道都需布设,若车道车辆分配比例相似可只在路段的中间车道上布设战术检测器,并在交叉口渠化区内每车道上布设感应检测器;所述的布设感应检测器是根据感应控制需要,在实施感应控制的交叉口进口道上布设感应检测器;所述的布设感应检测器是根据路网中路段车道虛拟检测器和虚拟置待检测器,一些无虛拟检测器的交叉口上布设感应检测器;所述的战略检测器的布设位置应满足距对向车道停车线距离不小于30米、距本进口 Strategy laid detector in the aspect of the strategy is laid in the respective detector inlet intersection track strategy, each lane road are subject to the principle laid, if the distribution ratio of the vehicle lane similar strategy may be laid only in the middle lanes of a link detector, and sensitive detectors laid on each lane of the intersection of drainage area; tactical laid said detector is a detector in respective tactical laid inlet intersection track tactics, in principle, are required for each lane road layout, If the distribution ratio of the vehicle lane can only layout similar tactic detectors in the middle lane of the road, inductive sensors and laid on each lane of the intersection of drainage area; laid sensitive detectors according to the sensor control is required, in the embodiment sensing control importing intersection track laying sensitive detectors; sensor layout of the detector is based on virtual lane road network sections and virtual detector detector to be opposed, without some of the intersections of the virtual detector layout sensitive detectors; the strategic layout position of said detector should meet the opposite lane from the stop line distance is not less than 30 meters away from the inlet of the present 停车线距离不小于150米,在路段长度小于180米的情况下,优先考虑远离本进口道停车线,战略检测器两个连续设置的检测器最大间距要小于车辆的最小车身长度,同时还要保证检测精度,因此取2米,相邻两车道并排放置的两个检测器的间距应至少为2米,战略检测器的长度和宽度均为1米,并且设置在车道中央;所述的感应检测器应布设于交叉口进口车道停车线附近,感应检测器距本向进口道停车线的距离为30米-35米;感应检测器的长度和宽度均为2米。 Stop line distance not less than 150 m, in a case where the link length is less than 180 meters away from this inlet channel priority to the stop line, the maximum distance detector strategies two consecutive detectors arranged to be less than the minimum length of the vehicle body, but also ensure detection accuracy, thus taking two meters, two adjacent lane placed side by side spacing of the two detectors should be at least 2 meters, the length and width detector strategies are 1 m, and is provided at the center of the lane; the induction detector should be laid on the lane near the entrance of the parking line intersection, the detector from the sensor to present a stop line from inlet channel 30 meters -35 m; length and width of the inductive sensors are two meters.

本发明的有效益效果是: Benefits of the present invention has the effect of:

(1) 本发明考虑到各个交叉口的特征不同,把交叉口科学、合理的划分为战略交叉口、 战术交叉口、 一般交叉口及敏感交叉口。 (1) The present invention contemplates the various features of each intersection, the intersection of a scientific and rational strategy is divided into intersection, tactical intersection, intersection, and generally sensitive to the intersection. 提出战略交叉口要作为特殊重点进行管理与控制, 战术交叉口作为重点进行管理与控制, 一般交叉口进行一般管理与控制的城市交通控制策略,这样就能实现对城市交通的科学管理,有利于提高城市交通控制效率。 To provide strategic intersection as a special focus on the management and control, tactical intersection as the focus of the management and control, general management and control of urban traffic control strategy in general the intersection, so that we can achieve scientific management of urban transport, in favor of improve the urban traffic control efficiency.

(2) 根据各类交叉口的控制力度不同,本发明分别在战略交叉口、战术交叉口及一般交叉口上布设了战略检测器、战术检测器及感应检测器,各类检测器所检测的交通流数据不同, 各类检测数据可以共用,例如战略检测器检测得到的车辆速度可以为战术检测器、感应检测器计算车身长度提供数据支持,从而得到车道的小时流量,大大减少城市交通系统为统计交通流信息所需的检测器数量,进而减少工程成本。 (2) The efforts to control all kinds of different intersections, according to the present invention are laid strategic intersection detector strategic, tactical and general intersection intersection, tactical detector and sensor detector, various types of traffic detected by the detector different streams of data, various types of test data can be shared, such as vehicle speed detector detects the resulting strategy can be a tactical detector, inductive sensors provide data to support the calculation of the length of the body, resulting in hours of traffic lanes, greatly reduce urban transport system statistics the number of detectors required traffic flow information, thereby reducing the cost of the project.

(3) 根据各条车道(检测器)的历史交通流信息,计算并判断出与各条车道(检测器) 相关性最强的车道(检测器),从而把相互满足相关条件的检测器分别命名为虚拟置待检测器和虚拟检测器。 (3) based on historical traffic information of each lane (detector) is calculated and it is determined that the respective lanes (detector) most relevant lane (detector), thereby mutually satisfy the relevant conditions of each detector named virtual virtual set to be detected and the detector. 那在这一对虚拟置待检测器和虛拟检测器中可以布设一个检测器,另外一个检测器的检测数据可以由它推算出来,从而减少工程成本。 It is set to be in this virtual detector and the virtual detector can be laid in a detector, another detection data from the detector can be calculated it out, thereby reducing the cost of the project. 由于与某个检测器满足相关性的检测器不止一个,因此不会因为虚拟置待检测器出现故障而造成这两个检测器无法获得交通信息,系统会重新为它们找到虚拟置待检测器,从而保证系统检测数据的完整性。 Since more than one, it will not be set as virtual detector failure caused by these two detectors can not get traffic information to satisfy the correlation detector and a detector, the system will re-locate virtual detector to be set for them, thus ensuring the integrity of the system test data.

(4) 系统把出现故障的检测器称作缺席检測器,同样系统可根据检测器彼此之间的相关性找到与^目关的检测器,利用相关检测器获得缺席检测器的数据,从而保证系统不会因为个别检测器出现故障造成系统功能下降甚至瘫痪。 (4) the system failure called a detector absence detector, the same system may find the correlation between each other and the associated detector ^ mesh according detector, the data obtained using the correlation detector of the absence of the detector, so as to ensure The system will not cause failure of individual detector system dysfunction and even paralysis.

(5) 本发明的战略检测器在一个车道上是前后成对出现,即双检测器,从而避免单检测器无法实时检测速度及车身长度,从而未能自动获得标准小时流量的缺陷。 Strategy detector (5) of the present invention is in the front and rear pairs on one lane, i.e., dual detector, thus avoiding a single detector can not detect in real time the speed and length of the vehicle body, thereby failing to obtain an automatic defect criteria hour traffic.

(6 )本发明中的战略检测器及战术检测器的布设,充分考虑到路段车流的最大排队长度, 完全可以判断路段车流的交通状态,给交叉口的控制策略提供理论支持。 (6) In the present invention strategies and tactics detector detector layout, fully taking into account the maximum queue length of road traffic, road traffic condition can Analyzing the traffic, provide support to the theoretical intersection control strategy.

(7)本发明中感应检测器的布设位置,避免由于检测器布设过远造成相位绿灯利用效率低,同时又避免了由于检测器布设位置过近造成车辆请求时间小于信号机反映时间,使得车辆请求无法实现,从而未能实现感应控制。 (7) the present invention induced layout position detector, to avoid the detector layout too far resulting in low phase green light use efficiency, while avoiding due detector layout position too close to the vehicle caused by the request time is less than the signal response time, so that the vehicle request can not be achieved, thereby failing to achieve sense control.

附图说明 BRIEF DESCRIPTION

图1是城市路网结构示意图; 图2是战略检测器布设示意图: 图3是战术检测器布设示意图: 图4是感应检测器布设示意图; 图5是各种检测器综合布设图示意图; 图6是实施例中长春市部分路网结构示意图; 1 is a schematic urban road network structure; FIG. 2 is a schematic layout strategy Detector: FIG. 3 is a schematic layout tactical Detector: FIG. 4 is a schematic layout sensor detector; FIG. 5 is a schematic view of the various detectors FIG comprehensive layout; FIG. 6 It is a schematic section structure of the road network Changchun embodiment;

图中:L,.两组连续设置的战略检测器的间距(m) ,1^.相邻车道两组战略检测器的间距(m) ,L3.检刺器的长度(m) ,L(.检测器的宽度(m) , L5.战略检测器距对向车道停车线的距离(m) ,L6.战略检测器距本向进口道停车线的距离(m) ,L,.感应检测器距本向进口道停车线的距离(m) ,L「感应检测器的长度(ra),".感应检测器的宽度(m)。 FIG: L ,. two strategies pitch detector continuously arranged (m), 1 ^ spacing two adjacent lane strategy detector (m), L3 is the length of the subject puncture (m), L (.. detector width (m), L5. strategy to detector distance from the stop line of the lane (m), L6. this strategy to detector distance from the inlet channel stop line (m), L ,. sensitive detectors this distance from the inlet channel to the stop line (m), a length L "sensor detector (ra),". the width of the inductive sensors (m).

具体实施方式 Detailed ways

下面结合附图和实施例对本发明作进一步的详细描述: The present invention is further described in detail below in conjunction with the accompanying drawings and examples:

本发明提出的检测器优化布设方法是通过对城市路网中道路特征、交叉口类型及路网中 Detector layout optimization method proposed by the present invention is the road feature urban road network, intersections and road network type

各个基本路段交通流的内在规律分析的基础上,提出的一种新型的检测器布设方法。 The basis of the internal laws of each of Traffic flow analysis, proposed a new type of detector layout method.

所有城市的路网均由四种类型的道路构成,即由快速路、主干道、次干道和支路构成, All the city's road network composed by four types of road, namely roads, secondary roads and branch constituted by the expressway,,

划分道路类型的技术指标参阅表1所示。 Divided road type of technical indicators refer to Table 1 below.

表1 我国城市道路分类及主要技术指标 Table 1 road classification of cities and major technical indicators

<table>table see original document page 6</column></row> <table><table>table see original document page 7</column></row> <table> <Table> table see original document page 6 </ column> </ row> <table> <table> table see original document page 7 </ column> </ row> <table>

参阅图1,就我国大多数城市而言,快速路系统建设不是很多,仅有北京、上海等几个城市具备,大多数城市具备的是主干道、次干道和支路,这些道路彼此相交形成城市路网, 城市路网的结构直接决定了交叉口的类型。 Referring to Figure 1, in terms of the majority of our city, not many expressway system construction, only Beijing, Shanghai and several other cities have, is that most cities have roads, secondary roads and branch roads which intersect with each other urban road network, urban road network structure directly determines the type of intersection.

依据ABC管理学原理,城市交叉口可定义为三类:战略交叉口、战术交叉口、 一般交又口及敏感交叉口。 ABC based on the principle of management, the city can be defined as the intersection of three categories: strategic intersection, the intersection of tactics, the general pay and mouth and sensitive intersection.

战略交叉口是指交通强度大且能反映区域交通特点的主要交叉口。 Strategic intersection refers to the major intersection traffic intensity can reflect the characteristics of regional traffic. 这类交叉口一般应是主干道和主千道相交的交叉口以及部分复杂交叉口,在图1中所示的交叉口l和交叉口2即为战略交叉口。 Such roads and intersections should generally be one thousand main portion intersecting the intersection and the complex intersection, the intersection l 1 shown in FIG. 2 and the intersection is the intersection strategy. 战略交叉口能够代表城市交通的特点,是城市交通状况的晴雨表,对交通控制效果起着关键性的作用。 Strategic intersections can represent the characteristics of urban traffic, is a barometer of urban traffic conditions, plays a key role in traffic control. 战略交叉口占信号交叉口(包括应该采用信号控制的交叉口)总数的比例约为5%—10%。 Accounting strategy intersection signalized intersection (intersection should be used including the control signal) ratio of the total number of about 5% -10%.

战术交叉口是指交通强度较大且在协调控制中起重要作用的交叉口。 Tactical traffic intersection refers to a bigger strength and play an important role in coordinating control intersections. 这类交叉口一般应是主千道和次干道相交的交叉口以及部分复杂交叉口,在图1中所示的交叉口3、交叉口4、 交叉口5、交叉口6、交叉口7、交叉口8、交叉口9即为战术交叉口。 Such intersections should generally be one thousand primary and secondary intersections and roads intersecting the complex intersection portion, at the intersection shown in FIG. 13, 4 intersections, intersection 5, 6 intersection, the intersection 7, intersection 8, 9 is the intersection tactics intersection. 战术交叉口的地位比较重要,对交通控制效果有着明显的影响。 Status of the intersection of tactics is more important, has a significant impact on traffic control. 战术交叉口占信号交叉口(包括应该采用信号控制的交叉口)总数的比例约为30%_40%。 Tactical signal representing the intersection the intersection (intersection should be used including the control signal) ratio of about 30% of the total _40%.

一般交叉口是指支路和主干道或次干道相交、采用或应采用信号控制的交叉口,在图1 中所示的交叉口11至交叉口26为一般交叉口, 一般交叉口一般来说地位不重要,处于从属地位。 Generally refers to intersections and roads branch or intersect secondary roads, intersections or using control signals should be used, at the intersection shown in FIG. 11 to the intersection 26 to intersection general, the general intersection General position is not important, in a subordinate position. 一般交叉口占信号交叉口(包括应该采用信号控制的交叉口)总数的比例约为50% — 60%。 Usually a signal representing the intersection the intersection (intersection should be used including the control signal) ratio of about 50% of the total - 60%.

敏感交叉口是指与短连线相连且该连线易发生交通拥堵的交叉口,在图1中所示的交叉口10即为敏感交叉口,此类交叉口归为战术交叉口。 Intersection sensitive connection means is connected to the short connection and the intersection traffic jam prone, that is sensitive to the intersection 10 of the intersection shown in FIG. 1, the intersection of these intersections classified as tactical.

根据ABC管理学思想,战略交叉口要作为特殊重点进行管理与控制,战术交叉口作为重点进行管理与控制, 一般交叉口进行一般管理与控制,这样就能实现对城市交通的科学管理。 According to ABC management thinking science, strategic intersections to be a special focus on management and control, tactical intersection as the focus of the management and control, general management and control of the general intersection, so that we can achieve scientific management of urban transport. 尽管混合交通现象在我国普遍存在,但是经研究发现,城市道路上的交通流仍然具有明显的规律性,具体表现在时间性、系统性和相关性三个方面具有明显的规律性。 Despite the mixed traffic widespread phenomenon in our country, but the study found that traffic on the city roads still has obvious regularity, specific performance has obvious regularity in timeliness, and relevance of systematic three aspects. 交通流一天中的变化具有很强的时间分布规律,要经历高峰、平峰和低峰三个阶段,而且呈周期性变化。 Changes in traffic flow one day have a strong distribution time, to experience the peak, peak and low peak level in three stages, and cyclical changes. 一周内的交通流变化也存在明显的时间分布规律,而且,交通流的变化过^呈是连续的,不会出现突变,除非发生了交通事故或者事件。 Changes in traffic flow within a week there are obvious time distribution, and changes in traffic flow was too ^ is continuous, the mutation does not appear, unless the accident or incident. 交通流的生成具有^^强的聚集特征,其聚集过程为: 街巷-支路—干道,表现出显著的系统性,城市中所有的交通流是一个统一体。 Generating traffic having strong aggregation characteristics ^^, aggregation process: street - bypass - roads, exhibit significant systemic, all city traffic flow is a continuum. 交通流的相关性主要表现在三个方面:时间相关性、空间相关性和事件相关性。 Correlation traffic flow mainly in three aspects: temporal correlation, spatial correlation and event correlation. 时间相关性是指所有交叉口的交通状态随时间的变化规律具有相似性。 Relevance refers to the time the status of all traffic intersections of similarity variation with time. 空间相关性是指某些交叉口(可能距离很远) 的交通状态变化具有很强的一致性,变化过程极其类似。 Spatial correlation refers to the traffic status change certain intersection (probably very far away) has a strong identity, very similar to the process of change. 事件相关性是指交通流点线面运动的相关性。 Event correlation refers to correlation points, lines and traffic movement.

我国大部分城市建设交通控制系统,经济条件还不允许布设大量的检测器。 Most of our urban construction, traffic control systems, economic conditions also do not allow a large number of laid detector. 为此,交通控制系统根据管理学思想,采取以战略交叉口为核心、战术交叉口为补充、简单考虑一般交叉口的检测器布设策略,根据交叉口交通信息的相关性,利用战略交叉口和战术交叉口的交通数据推测一般交叉口的交通数据。 For this reason, traffic control system based on school management thinking, adopt a strategic intersection as the core, supplemented by the intersection of tactics, a simple consideration of the general policy laid detector intersections, traffic information based on the correlation of the intersection, and the use of strategic intersection tactical data traffic intersection traffic data is generally speculated that intersection. 这样既能满足控制系统的需要,又能减少检测器的数量。 Which meets the needs of the control system, but also reduce the number of detectors.

检测器的布设原则为:战略交叉口布设战略检测器和感应检测器;战术交叉口布设战术检测器和感应检测器; 一般交叉口布设虚拟检测器,某些一般交叉口可以布设感应检测器(布设在主干道上或支路上),实行半感应控制;自行车检测器根据需要布设。 Principles laid detector as: strategic intersections strategy laid detector and sensor detector; tactical tactics laid intersection detector and sensor detector; general layout intersection virtual detector, some intersections can generally laid sensitive detectors ( arranged on the trunk or branches), to implement semi-sensing control; bicycle detector layout as desired.

战略检测器布设在战略交叉口的上游路段车道上,用于检测流量、速度、时间占有率和车辆排队的检测器,是交通流分析、预测和信号配时的主要数据来源,参阅图2所示战略检测器位置布设情况。 Strategy detector arranged on the upstream lane road intersections strategy for detecting the flow rate, speed, time, and vehicle occupancy detector queuing, when the main source of data traffic flow analysis, and the prediction signal timing, refer to FIG. 2 strategic layout illustrates the situation detector location. 图中标示出了战略交叉口的一个方向的进口车道,各参数含义如下: Figure marked out the direction of a strategic intersection of imported lane, all parameters are as follows:

L,一两组连续设置的检测器的间距(m); L, a set of two consecutive detector spacing (m);

L2—相邻车道两组战略检测器的间距(m ); L2- two adjacent lane strategy detector spacing (m);

U—检测器的长度(m); U- detector length (m);

L4—检测器的宽度(m); L4- detector width (m);

L5—战略检测器距对向车道停车线的距离(m); U—战略检测器距本向进口道停车线的距离(m)。 L5- strategy to detector distance from the stop line of the lane (m); U- strategy from the present to the detector from the inlet channel stop line (m). 战略检测器的布设位置应考虑以下因素: Strategic layout position detector should consider the following factors:

U)准确测量通过的交通流量,避免公交车站点、停车场和行人千扰严重的地段: U) to accurately measure the traffic flow by avoiding the bus station, parking and pedestrian one thousand serious disturbance of the lot:

(2) 能够准确测得路段上车辆的正常行驶速度,远离上游交叉口的冲突区,车辆行驶到战略检测器时已经进入正常行驶状态; (2) can be accurately measured on the normal running speed of the vehicle sections, away from the conflict zone upstream intersection, the vehicle has entered a normal running state detector with the strategy;

(3) 如果路段上有车流汇入点或流出点,战略检测器应设在该点的下游,确保被测车辆处于正常行驶状态; (3) If there is traffic on the import point or out-point link, the detector should be located at strategic downstream of the point, measured to ensure that the vehicle is in a normal running state;

(4) 战略检测器的位置应尽量远离战略交叉口的停车线,避免被排队车辆经常占据, 一旦占用时间超过正常值,即说明该交叉口排队过长,应采取特殊控制方案。 Position (4) Strategy detector as far away from the stop line of the intersection strategy to avoid being queued vehicles often occupied, once the occupancy time than normal, i.e., indicating that the intersection line is too long, should take special control scheme.

根据上述要求,战略检测器的布设位置应满足战略检测器距对向车道停车线距离U不小于30米、战略检测器距本进口道停车线距离U不小于150米,在路段长度小于180米的情况下,优先考虑远离本进口道停车线的距离。 According to the above requirements, layout strategic position detector should satisfy strategic detector from the opposite lane stop line distance U is not less than 30 m, the strategy detector from this inlet channel stop line distance U is not less than 150 m, the link length is less than 180 m under the circumstances, the present priority distance away from the inlet channel stop line.

两个连续布设的战略检测器最大间距L,要小于车辆的最小车身长度,同时还要保证检测精度,因此取2米。 Two consecutive detectors strategy laid maximum spacing L, is less than the minimum length of the vehicle body, but also to ensure the detection accuracy, it takes 2 meters. 相邻两车道并排放置的两组检测器的间距L2要考虑以下因素: (1 )保证战略检测器所在车道的车辆能够被准确的检测到; (2 )避免跨线行驶的车辆被两组战略检测器同时检测到。 The distance L2 between two adjacent lanes of the two sets of detectors placed side by side to consider the following factors: (1) ensure that the lane where the vehicle strategies detector can be accurately detected; (2) prevent the vehicle is traveling across the line two strategic detectors simultaneously detected.

为满足上述条件,通常应保证相邻车道两组战略检测器的间距L2至少为2米,战略检测器采用检测器的长度L;与检测器的宽度U均为1米,并且布设在车道中央。 To satisfy the above conditions, generally two strategies should ensure that the adjacent lane L2 the detector spacing of at least 2 meters, the length L of the strategic use of the detector of the detector; width detector U are 1 meter, and laid in the center lane .

战术检测器布设于战术交叉口上游路段车道上,用于检测流量、时间占有率和车辆排队的检测器,借助战略检测器提供的平均车身长度可以推算车辆平均速度,是交通流分析、预测和信号配时的重要数据来源,参阅图3所示战术检测器位置布设情况。 Tactical detector laid on tactical upstream intersection road lane, for detecting the flow rate, time, and vehicle occupancy detectors queue, the average length of the body by means of detectors provide strategies can calculate the average speed of the vehicle, traffic flow analysis, forecasting and important source of data when the signal feature, see the layout position of the tactical situation detector 3 shown in FIG. 图中标示出了战术交叉口的一个方向的进口车道,战术检测器在路段上的位置布设参数与战略检测器位置布设 Figure out a direction indicated tactics intersection of imported lane, tactical position detector on the section of the layout parameters and strategic position detector layout

参数相同,可参阅战略检测器的布设原则。 The same parameters, please refer to the principles laid strategies detector.

感应检测器布设于交叉口进口车道附近,用于检测车辆到达,产生绿灯请求信号,并可以检测进口道的过饱和状态,以及非饱和状态下该进口车道流量的检测器,参阅图4所示感应检测器位置布设情况。 Inductive sensors laid in the vicinity of the intersection inlet lane, for detecting a vehicle reaches, generates a supersaturated state request signal is green, and the inlet channel can be detected, and a detector the inlet flow lane or saturation, refer to FIG. 4 where layout position sensitive detectors. 图中标示出了采用感应式控制的交叉口一个方向的进口车道,各参数含义如下: FIG denoted an intersection using a direction-sensing control importing lane, the parameters have the following meanings:

L7-感应检测器距本向进口道停车线的距离(m); U-感应检测器的长度(m); L,-感应检测器的宽度(m)。 L7- sensitive detectors according to the distance from the inlet channel stop line (m); U- sensor detector length (m); L, - inductive sensors width (m).

感应检测器距本向进口道停车线的距离U的确定主要考虑以下因素: (l)在感应式控制中,保证一个单位绿灯延长时间内车辆驶过的距离,当车辆经过感应检测器时,若信号由绿灯变为红灯能够保证车辆在停车线前安全的停车。 Inductive sensors from this distance U is determined to the main inlet channel stop line consider the following factors: (l) in the induction control, to ensure that a unit of green light to extend the distance the vehicle traveled within the time when the vehicle passes detector sensor, If the signal from the green light turns red to ensure that the vehicle is parked in front of the stop line of security.

(2 )为满足上述条件,感应检测器距本向进口道停车线的距离U取30米至35米。 (2) to satisfy the above conditions, from the present sensor detector U take from 30 to 35 m from the inlet channel to the stop line. 感应检测器的规格为感应检测器的长度"和感应检测器的宽度L,均为2米。 The width of the inductive sensors sensitive detectors specifications for the length "of the detector and the sensor L, is 2 meters.

虚拟检测器是根据交通流的相关性,可以借助于战略检测器和战术检测器提供的数据对无检测器路段的流量、速度、占有率进行预测,此时该路段相当于布设了一个检测器,该虛设的检测器称为虛拟检测器。 Virtual detector is a correlation of the traffic flow, by means of the data detector strategic and tactical detector provides the detector section of the free flow speed, occupancy prediction, this time corresponds to the road layout of a detector the dummy detector called a virtual detector.

虚拟置待检测器是根据交通流的相关性,可用某个正常检测器推算出虚拟检测器的检测数据,该正常检测器又称为虛拟置代检测器。 Virtual detector to be set based on the correlation of the traffic flow, the detector can be used a normal detection data calculate the virtual detector, the detector is also known as the normal generation of a virtual counter detector.

缺席检测器是指出现故障、失去数据检测功能的检测器称为缺席检测器。 Absence detector means fails, the data loss detection function detects the absence of detector is called. 缺席置待检测器是指根据交通流的相关性,可用某个正常检测器推算出缺席检测器的检测数据,该正常检测器又称为缺席置代;险测器。 Absence detector means to be set according to the correlation of traffic flow, can calculate an abnormality detector detects the absence of the data detector, the detector is also known as the normal set substituting absent; insurance detector.

自行车检测器是设置于自行车专用道上,用于检测自行车流量和滞留数的检测器。 Bicycle detector is provided a bicycle dedicated lane, a bicycle for detecting the flow rate detector and retained number. 采用视频检测器(摄像头)检测自行车的流量信息,布设在交叉口进口道停车线正上方,距离路面5米髙度进行高空摄影,获取视频图像,来检测自行车流的流量、流向信息。 Using video detector (camera) detects the bicycle traffic information, laid just above the inlet channel stop line at an intersection, a distance of 5 meters of road Gao aerial photography, video images acquired, the flow rate is detected bicycle flow, the flow of information.

左转前置自行车检测器是设置于左转自行车行驶轨迹上,用于检测左转自行车流量的检测器„参阅图5,该图为各种检测器的综合布设示意图。 实施例 Bicycle front left detector is disposed on the left traveling locus bicycle, the bicycle for detecting the flow rate detector left "refer to FIG. 5, a schematic diagram of the various detectors integrated laid the graph Example

参阅图6,图6中所示的是长春市一个局部路网示意图,個二没城市主干道路段单向4条机动车道,次干道单向2车道,支路单向l车道。 Refer to FIG. 6, FIG. 6 is shown in a partial schematic diagram of Changchun City road network, not a two-way link urban trunk road vehicle 4, lane 2 times the one-way roads, one-way branch lane l. 根据该路网中各交叉口的历史检测数据得到交叉口各个出口的路网相关系数r2统计表,即表2。 To give the respective outlet historical detection data based on the intersection of the road network in each intersection road network statistics correlation coefficient r2, i.e. Table 2.

表2 长春市一个局部路网相关系数? Table 2 Changchun City, a local road network correlation coefficient? 统计表<table>table see original document page 9</column></row> <table><table>table see original document page 10</column></row> <table><table>table see original document page 11</column></row> <table>路段上布设一组检测器;在布设战略检测器和战术检测器时: 两组连续设置的检测器的间距L,取2米; 战略检测器、战术检测器的长度L取1米; 战略检测器、战术检测器的宽度L4取1米; 战略检测器、战术检测器距对向车道停车线的距离Ls取30米; 战略检测器、战术检测器距本向进口道停车线的距离L6取150米。 Statistics <table> table see original document page 9 </ column> </ row> <table> <table> table see original document page 10 </ column> </ row> <table> <table> table see original document page 11 </ column> </ row> <table> emplaced on a link set of detectors; upon laying strategic and tactical detector detector: two consecutive pitch detector arranged L, taken two meters; strategy detector, length L tactical detector takes one meter; strategy detector, the width L4 tactical detector takes one meter; strategy detector, tactical detector distance on the distance Ls to the lane stop line taken 30 m; strategy detector, tactical detection this is the distance from the inlet channel stop line L6 taken 150 meters.

(6 )在战略交叉口1中布i殳战略检测器4组(即8个检测器)和16个2 x2米的感应检测器;在战术交叉口6、战术交叉口7、战术交叉口9中布设12个战术检测器,在交叉口7 布设14个感应检测器。 (6) at the intersection Strategy 1 Strategy cloth i Shu detector 4 groups (i.e. 8 detectors) and 16 m 2 x2 sensitive detectors; 6, 7 tactical intersection tactical intersection, the intersection tactical 9 in tactical laid detectors 12, 14 laid at the intersection detector sensor 7. 在一般交叉口2、 一般交叉口5中布设20个感应检测器;根据道路混合交通情况,在解放放大路与同志街交叉口(即6号交叉口)各个进口道上布设4个自行车检测器。 In general intersection 2, the general layout of the intersection 5 20 sensitive detectors; hybrid road traffic conditions, road and amplification in the liberation gay street intersection (i.e., junction 6) the respective inlet track detectors laid 4 bicycle. 因此在这个路网中,总共需要布设74个不同类型的检测器。 Therefore, in this road network, laid total of 74 different types of detectors.

(7 )根据车道流量的相关性,找出未布设检测器的车道与已经布设检测器的车道具有车道流量的相关性,在此实施例中凡没有布;殳检测器的车道上确定布设虛拟检测器,已布设的战略检测器、战术检测器及感应检测器为虛拟检测器的虚拟置待检测器,以便进行实时信号控制。 (7) The correlation lane traffic, identify un-deployed detector lane and the lane has been laid detector relevant traffic lane, there is no case where the cloth in this embodiment; Shu detector determines laid on the lane virtual detector, the detector has laid the strategic, tactical and sensor detector detector detector to be set for the virtual virtual detector for real-time signal.

(8) 在相同的路网情况下,若采用SCOOT控制系统来实现实时信号控制,根据SCOOT 系统的检测器布设原则(在每个信号交叉口的上游各个车道上布设检测器),则在所选的长春市局部路网需要布设106个不同类型的检测器。 (8) in the same road network, the use of a real-time control system SCOOT control signal, according to the principles laid SCOOT detector system (detector laid on each lane upstream of each intersection signal), then the Changchun selected local road network layout 106 need different types of detectors.

(9) 再不影响控制精度和控制效果的情况下,采用本发明所述方法检测器的布设总量(74个检测器)与采用SC00T系统检测器的布设总量相比较,本发明所述方法的检测器布设 Case (9) do not influence the control accuracy and control performance using the method of the present invention the total amount of the layout of a detector (detector 74) the total layout of the detector is compared with SC00T system employed, the method of the present invention detector layout

量减少了30%,这大大减少了工程投资。 It declined by 30%, which significantly reduces the engineering investment.

Claims (8)

1. 一种城市交通信号控制系统中检测器的布设方法,其特征在于包括下列步骤:1)根据城市交通路网中道路特性、等级和道路交通流的分布情况确定快速路、主干道、次干道和支路的道路类型;2)根据城市交通路网中道路特性、等级和交叉口交通流的分布情况确定战略交叉口、战术交叉口、一般交叉口和敏感交叉口的交叉口类型;3)根据城市交通路网中各类型交叉口的数量、城市交通路网中交通流的分布情况与交通流的相关性确定整个城市布设战略检测器、战术检测器、感应检测器的类型、大小、数量和确定把相应检测器布设在各类型道路上的位置与数量;4)安装战略检测器、战术检测器和感应检测器,并用电线、光缆或无线依次将检测器,信号机,信号灯连接起来;5)在自行车的专用车道上安装检测自行车流量情况的检测器,并用电线、光缆或无线 CLAIMS 1. A method of laying in the Urban traffic signal control system of a detector, comprising the following steps: 1) The urban road traffic network characteristics, and distribution of grades determined traffic flow expressways, roads, secondary roads and road type branch; 2) according to city road traffic network characteristics, the distribution of grades and intersection traffic flow to determine the strategic intersection intersection intersection type tactics, general and sensitive intersection intersection; 3 ) according to the number of urban traffic network in various types of intersections, relevance and determine the distribution of traffic flow in city traffic network traffic flow across the city strategy laid detector, the detector type tactics, inductive sensors, size, the number and determining the respective detector arranged on the various types of road position and quantity; 4) mounted strategy detector, tactical detectors and inductive sensors, and in turn the detector signal, lights connected by wire, optical cable or radio ; 5) mounted detector detects bicycle traffic situation on a bicycle lanes, and wire, optical cable or radio 依次将检测器,信号机,信号灯连接起来。 The sequence detector signal, lights connected.
2. 按照权利要求1所述的城市交通信号控制系统中检测器的布设方法,其特征在于, 在战略交叉口的各个进口道上布设战略检测器,原则上路段每一车道都需布设,若车道车辆分配比例相似可只在路段的中间车道上布设战略4全测器,并在交叉口的进口道内每车道上布设感应检测器。 2. Urban traffic signal control system according to the method for laying a detector according to claim, characterized in that, in each detector strategy laid inlet intersection track strategy, in principle, each lane road layout are required, if the lane vehicle distribution ratio similar strategy may be laid only full detector 4 in the middle lanes of a link, and sensitive detectors laid on each lane in the inlet passage intersection.
3. 按照权利要求1所述的城市交通信号控制系统中检测器的布设方法,其特征在于, 在战术交叉口的各个进口道上布设战术检测器,原则上路段每一车道都需布设,若车道车辆分配比例相似可只在路段的中间车道上布设战术检测器,并在交叉口的进口道内每车道上布设感应检测器。 3. The urban traffic signal control system, the method for laying detector according to claim 1, characterized in that, in each detector laid tactical tactical inlet track intersection, the road layout principle for each lane are required, if the lane similar allocation ratio may only be laid tactical vehicle detectors in the middle lane of the road, inductive sensors and laid on each lane within the inlet passage intersection.
4. 按照权利要求1所述的城市交通信号控制系统中检测器的布设方法,其特征在于, 当所述的一般交叉口适合进行感应控制时,则在一般交叉口的进口道上布设感应检测器。 4. urban traffic signal control system according to the method for laying a detector according to claim, wherein, when the intersection is generally suitable for sensitive control, inductive sensors are placed on the inlet track intersections general .
5. 按照权利要求1所述的城市交通信号控制系统中检测器的布设方法,其特征在于, 根据路网中路段车道的相关性,确定哪些车道可设置虚拟检测器,哪些路段可为虛拟置待检测器。 The urban traffic signal control system according to the method for laying a detector according to claim, characterized in that, according to the relevant sections of the road network in the lanes, a lane may be arranged to determine which virtual detector, which may be a virtual link set be a detector.
6. 按照权利要求5所述的城巿交通信号控制系统中检测器的布设方法,其特征在于, 根据路网中路段车道虚拟检测器和虚拟置待检测器的布设情况,在无虛拟检测器的交叉口上布设感应检测器。 6. The method of laying Town traffic control system of claim 5 in the detector according to claim, characterized in that, according to the layout in the case of the road network sections and virtual lane virtual detector detector to be placed in the non-virtual detector inductive detection laid on the intersections.
7. 按照权利要求1所述的城市交通信号控制系统中检测器的布设方法,其特征在于, 战略检测器的布设位置应满^0巨对向车道停车线距离(L5)不小于30米、距本进口道停车线距离(U)不小于150米,在路段长度小于180米的情况下,优先考虑远离本进口道停车线;两个连续设置的战略检测器最大间距(L,)要小于车辆的最小车身长度,同时还要保证检测精度,因此取2米。 7. Urban traffic signal control system according to the method for laying a detector according to claim, characterized in that the layout position of the detector should be full strategy ^ 0 Giant opposite lane stop line distance (L5) is not less than 30 m, from this inlet channel stop line distance (U) of not less than 150 m, in a case where the link length is less than 180 meters away from the present priority inlet channel stop line; maximum strategy detector spacing (L,) is set less than two consecutive the minimum length of the vehicle body, but also to ensure the detection accuracy, it takes 2 meters. 相邻两车道并排放置的两个检测器的间距(L2)应至少为2米,战略检测器的长度(L3)和宽度(L4)均为1米,并且设置在车道中央。 Lane spacing between adjacent two detectors placed side by side in two (L2) should be at least 2 meters, the length of the strategy of the detector (L3) and width (L4) are 1 m, and is provided at the center of the lane.
8.按照权利要求1所述的城市交通信号控制系统中检测器的布设方法,其特征在于, 感应检测器应设置于交叉口进口车道停车线附近,感应检测器距本向进口道停车线的距离(L7)为30米-35米;感应检测器的长度(L8)和宽度(L9)均为2米„ 8. The urban traffic signal control system, the method for laying detector according to claim 1, characterized in that the inductive sensors to be disposed in the vicinity of the inlet lane intersection stop line, from the present sensor detector to the stop line inlet channel distance (L7 of) 30 -35 m m; length sensor detector (L8 of) and width (L9 of) is 2m "
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