CN102682598A - Traffic information distribution method capable of eliminating oscillation - Google Patents

Traffic information distribution method capable of eliminating oscillation Download PDF

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CN102682598A
CN102682598A CN2012101764155A CN201210176415A CN102682598A CN 102682598 A CN102682598 A CN 102682598A CN 2012101764155 A CN2012101764155 A CN 2012101764155A CN 201210176415 A CN201210176415 A CN 201210176415A CN 102682598 A CN102682598 A CN 102682598A
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traffic
amount
information
step
degree
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CN102682598B (en
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刘廷新
商岳
张永杰
张萌萌
张远
李海波
王丙
白翰
邓涛成
马香娟
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山东交通学院
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Abstract

The invention discloses a traffic information distribution method capable of eliminating oscillation, which includes the steps of: 1) installing traffic flow detection equipments on all traffic monitoring stations to record the parameters of the traffic flow; 2) computing the vehicle traveling OD(Origin-Destination) information at traffic diversion junctions through the OD backstepping technique; 3) computing the expected load level of a road section and estimating and comparing the expected load of the road section with the load level of an alternative road section; and 4) computing the fluctuation of the distributed information through a driver stimulation reaction model and building an information distribution dynamic area to distribute the information. With the method, the routes of the travelers can be optimal, and the benefit of the road network can be the maximum at the same time, smooth traffic circulation of the road network is ensured in time and traffic oscillation is reduced as much as possible.

Description

一种能够消除振荡的交通信息发布方法 A way to eliminate the oscillation of the traffic information distribution method

技术领域 FIELD

[0001] 本发明涉及ー种交通信息发布方法,具体是能够消除交通振荡的交通信息发布方法。 [0001] The present invention relates to a traffic information distribution method ー species, in particular to eliminate the traffic information distribution method of traffic oscillation.

背景技术 Background technique

[0002]目前交通信息系统是智能交通系统的ー个重要组成部分,其主要作用是将智能信息发布给出行者,帮助交通參与者合理的选择出行路径,最終达到出行者广义费用最小化和路网整体效益最大化。 [0002] current traffic information system is an important part ー intelligent transportation system, its main role is to publish intelligence information given by entrants, help reasonable choice travel route traffic participants, and ultimately achieve the minimum generalized cost of travel by road and maximize the overall effectiveness of networks.

[0003] 通过检索发现,目前国内外有关交通信息发布的研究主要集中在三个方面,ー是通过发布信息使得出行者路径最优;ニ是立足于路网通行效益的最优;三是通过综合措施,同时使得出行者路径最优和路网效益最大。 [0003] found through the search, traffic information abroad about current research published mainly in three aspects, through the release of information makes ー traveler optimal path; ni is based on the road network of the best benefits; Third, through comprehensive measures, while allowing travelers optimal path and the largest road network efficiency. 但是,这三种方法几乎都会出现两种尴尬的局面,ー种情况就是信息发布的较多,出行者不知如何选择,从而使得整体效果不能充分发挥;最重要的ー种情况是提供了较为敏感的信息,这样促使较多的出行者在较短的时间选择了同样的路径,从而使得交通拥挤从其他路转移到这条所谓的最优路上,产生了交通振荡现象,结果适得其反。 However, these three methods will be two almost embarrassing situation, ー case is released more information, travelers do not know how to choose, so that the overall effect is not full; the most important ー kinds of situations is to provide a more sensitive information, so encourage more travelers in a relatively short time chose the same path, so that the traffic congestion transferred from other road to this so-called best way to generate traffic oscillation phenomenon, counterproductive.

发明内容 SUMMARY

[0004] 本发明的目的是为克服上述现有技术的不足,提供一种能够消除振荡的交通信息发布方法,该方法使得在交通运行中,不仅能够同时使得出行者路径最优和路网效益最大,而且能够在时间上保证路网交通运行平稳,尽可能少的出现交通振荡。 [0004] The object of the present invention is to overcome the disadvantages of the prior art, providing traffic information distribution method capable of eliminating oscillations in a vehicle such that the process operation, while enabling travelers not only the optimal path and road network efficiency the largest, but also to ensure the smooth operation of the road network traffic, causing traffic as little as possible oscillations in time.

[0005] 为实现上述目的,本发明采用下述技术方案: [0005] To achieve the above object, the present invention adopts the following technical scheme:

[0006] 一种能够消除振荡的交通信息发布方法,步骤如下: [0006] A traffic information can be eliminated oscillation distribution method, the following steps:

[0007] I)在所有交通监测点上安装交通流检测设备,记录交通流信息參数; [0007] I) the traffic flow detecting apparatus mounted on all traffic monitoring points, traffic flow information recording parameters;

[0008] 2)采用OD反推技术计算分流节点处的车辆出行OD信息; [0008] 2) The vehicle computing OD estimation technique OD shunt trip information at the node;

[0009] 3)计算路段期望负荷程度;并与备选路段负荷程度对比判断; [0009] 3) Calculate the desired load degree segment; and the alternative link load level comparison determination;

[0010] 4)通过驾驶员刺激反应模型计算信息发布的上下浮动量,构建信息发布动态区间,以此发布信息。 [0010] 4) Calculate the amount of floating up and down by a driver information published stimulation model constructing dynamic information distribution section, in order to release the information.

[0011] 所述步骤2)的具体方法为:以路网中任何一个节点及周边路网为单元,当出行者到达O点的时候,面临m种选择,最終目的地共有η个,其中,m、η均为自然数;根据步骤I)中路段上所检测的交通流信息,采用极大似然OD反推技术即可求得从起点到任何ー个终点的出行量。 [0011] step 2) is a specific method: at any node in the road network and the road network as a peripheral unit, when the traveler reaches the point O, the choices facing m, η a total final destination, wherein m, η are natural numbers; traffic flow information according to step I), the detected link, using the amount of travel from the start point to the end of any one ー likelihood OD estimation techniques can be obtained.

[0012] 所述步骤4)的具体方法为 [0012] step 4) as a specific method

[0013] 第一歩,根据步骤I)中的交通检测信息得到OP1, OP2, OPffl路段上的交通运行负荷程度B17B2,.. . , Bm ;0为步骤2)中的O点位置,ΡρΡ2、…,Pm为步骤2)中的m种选择,m为自然数,如果直接将该信息发布给出行者,则极易出现交通振荡现象; [0013] First ho, the traffic detection information obtained in step I) of OP1, the degree of traffic load on the operation OP2, OPffl sections B17B2, .., Bm;. 0 point position is O Step 2), ΡρΡ2, ..., Pm is a step of selecting the 2 m) is, m is a natural number, if this information is directly given release Walker, oscillation is prone to traffic;

[0014] 第二步,根据出行者路径最优化和网络运行效益最大化为目标,计算出选择路段上的期望交通负荷程度C1, C2,. . .,Cm,m为自然数;很显然,如果将该信息发布给出行者,则出现信息过剩现象; [0014] In the second step the traveler route optimization and operation of the network as the goal to maximize efficiency, the calculated desired degree of traffic load on the selected segment C1, C2 ,., Cm, m is a natural number;. Obviously, if Walker publish that information given, appears the phenomenon of information overload;

[0015] 第三步,计算信息发布上下浮动量AA1, AA2, ...,AAm ;m为自然数,心理学认为刺激量和反应量之间符合对数关系,如果将信息发布变化量作为刺激量的话,则可以用路段上交通负荷程度的变化量来描述反应量,二者之间的关系为: [0015] The third step is to calculate the amount of information dissemination fluctuate AA1, AA2, ..., AAm; m is a natural number, the amount of psychology that correspondence between stimulus and response relationship between the amount of the logarithm, if the amount of change in information dissemination as stimulators amount, then the link can change the amount of the traffic load level of the amount of reaction is described, the relationship between them is:

[0016] Ai = log,"' (I) [0016] Ai = log, " '(I)

[0017] 式中,Ai为反应量,AAi为刺激量,α为模型參数; [0017] wherein, Ai is the reaction amount, AAi amount to stimulate, α model parameters;

[0018] 作为交通控制者,希望路段交通运行符合程度达到期望值,由此所期望的反应量Δ r I Bi-Ci I,则浮动量的计算公式为: [0018] as a traffic controller, it is desirable to run the degree of compliance with road traffic reaches a desired value, thereby a desired amount of reactive Δ r I Bi-Ci I, the floating amount is calculated:

[0019] Δ4=βΜ (°) [0019] Δ4 = βΜ (°)

[0020] 式中,Ai为反应量,AAi为刺激量,α为模型參数,Bi为实际交通负荷程度(即B1,·B2, , Bm), Ci为期望交通负荷程度(即C1, C2, , Cm), i均为I到m的自然数。 [0020] wherein, Ai is the reaction amount, AAi amount to stimulate, α model parameters, Bi is the actual degree of traffic load (i.e., B1, · B2,, Bm), Ci is the desired degree of traffic load (i.e., C1, C2 ,, Cm), i m are natural numbers of I to.

[0021] 第四步,构建交通信息发布动态区间,对于任何ー个路段,若期望交通负荷程度小于实际符合程度吋,动态区间为[Bi, HiinaBi+AAi)],否贝U,动态区间为[Hiax(OJi-AAi), Bi],这种采用动态区间的发布方式,不仅同时使得出行者路径最优以及路网效M最大,而且能够有效避免交通振汤。 [0021] The fourth step, traffic information to build dynamic range for any ー road segments, if the expected traffic load is less than the actual degree of conformance inch, dynamic interval [Bi, HiinaBi + AAi)], no shellfish U, the dynamic range is [Hiax (OJi-AAi), Bi], which uses dynamic publishing section, not only the optimal path while allowing the traveler and M is a maximum effective road network, and traffic can effectively avoid vibration soup.

[0022] 本发明中的OD反推技术、极大似然OD反推技术均为现有技术,在此不再赘述。 [0022] In the present invention OD estimation technique, the maximum likelihood technique of OD are prior art, it is not repeated here.

[0023] 本发明的有益效果是,采用该方法使得在交通运行中,不仅能够同时使得出行者路径最优和路网效益最大,而且能够在时间上保证路网交通运行平稳,尽可能少的出现交通振荡。 [0023] Advantageous effects of the present invention is that the method makes use of the transportation operation, not only the optimal path while allowing the traveler and the maximum effective road network, but also to ensure the smooth running of the road network in terms of time, little as possible traffic oscillation occurs.

附图说明 BRIEF DESCRIPTION

[0024] 图I是本发明步骤2)中路径选择示意图; [0024] FIG. I is a) step of the present invention in a schematic view of the second route selection;

[0025] 图2是本发明控制流程图; [0025] FIG 2 is a control flowchart according to the present invention;

具体实施方式 Detailed ways

[0026] 下面结合附图和实施例对本发明进ー步说明。 Drawings and embodiments of the present invention is described further into ー [0026] The following binding.

[0027] —种能够消除交通振荡的交通信息发布方法,步骤如下: [0027] - the kind of traffic information distribution method can eliminate the oscillation of traffic, follow these steps:

[0028] (I)在所有交通监测点上安装交通流检测设备,记录交通流信息參数。 [0028] (I) Traffic detection apparatus installed on all traffic monitoring points, traffic flow information recording parameters. 采用OD反推技术计算分流节点处的车辆出行OD信息。 OD estimation techniques using a vehicle computing nodes shunt OD travel information.

[0029] (2)通过驾驶员刺激反应模型计算信息发布的上下浮动量,构建信息发布动态区间,以此发布信息。 [0029] The calculated amount of information published fluctuate (2) by the driver stimulus response model, constructing dynamic information distribution section, in order to release the information.

[0030] 步骤(I)的具体方法: [0030] Step (I) is a specific method:

[0031] 如图I所示,以路网中任何一个节点及周边路网为研究単元,当出行者到达O点的时候,面临m种选择,最終目的地共有η个,m、η均为自然数。 [0031] As shown in FIG I, at any node in the road network and the surrounding road network element of radiolabeling studies, when the traveler reaches the point O, the choices facing m, [eta] a total final destination, m, [eta] are Natural number. 根据路段上所检测的交通流信息,采用极大似然OD反推技术即可求得从起点到任何一个终点的出行量。 The road traffic information on the detected maximum likelihood OD estimation technique may be obtained from the amount of travel start point to any destination.

[0032] 步骤(2)的具体根据和实施方法: [0032] Step (2) the specific embodiments and methods according to:

[0033] 第一歩,可以根据交通检测信息得到OPpOP2,. . .,OPm路段上的交通运行负荷程度B1, B2, . . .,Bm,m为自然数。 [0033] First ho, the traffic information may be obtained according to the detection OPpOP2 ,..., The traffic load level of operation on OPm sections B1, B2,..., Bm, m is a natural number. 如果直接将该信息发布给出行者,则极易出现交通振荡现象。 If Walker is given directly publish that information is prone to traffic oscillation. [0034] 第二步,根据出行者路径最优化和网络运行效益最大化为目标,计算出选择路段上的期望交通负荷程度C1;c2,. . .,Cm,m为自然数。 [0034] The second step, according to the travel path by optimizing network operations and the objective of maximizing efficiency, calculated on the desired link traffic load level selected C1; c2 ,., Cm, m is a natural number... 很显然,如果将该信息发布给出行者,则出现信息过剩现象。 Obviously, if the information is released to give Walker, the phenomenon of information overload.

[0035] 第三步,计算信息发布上下浮动量AA1, Λ A2, ...,Λ Am,m、η均为自然数。 [0035] The third step is to calculate the amount of information dissemination fluctuate AA1, Λ A2, ..., Λ Am, m, η are natural numbers. 这是本发明的核心部分,心理学认为刺激量和反应量之间符合对数关系,如果将信息发布变化量作为刺激量的话,则可以用路段上交通负荷程度的变化量来描述反应量,二者之间的关系为: This is the core part of the present invention, the psychology that are logarithmic relationship, if the amount of change in information dissemination as the amount of stimulation, then the amount can vary the degree of traffic load on the road to describe the amount of reaction between stimulus and reaction volume, the relationship between the two is:

[0036] [0036]

Figure CN102682598AD00051

[0037] 式中,Ai为反应量,AAi为刺激量,α为模型參数。 [0037] wherein, Ai is the reaction amount, AAi amount to stimulate, α model parameter.

[0038] 作为交通控制者,希望路段交通运行符合程度达到期望值,由此所期望的反应量Δ r I Bi-Ci I,则浮动量的计算公式为: [0038] as a traffic controller, it is desirable to run the degree of compliance with road traffic reaches a desired value, thereby a desired amount of reactive Δ r I Bi-Ci I, the floating amount is calculated:

[0039] [0039]

Figure CN102682598AD00052

[0040] 式中,Ai为反应量,AAi为刺激量,α为模型參数,Bi为实际交通负荷程度(即B1,B2, , Bm), Ci为期望交通负荷程度(即C1, C2, , Cm), i均为I到m的自然数。 [0040] wherein, Ai is the reaction amount, AAi amount to stimulate, α model parameters, Bi is the actual traffic load level (i.e., B1, B2,, Bm), Ci is the desired degree of traffic load (i.e., C1, C2, , Cm), i m are natural numbers of I to.

[0041] 第四步,构建交通信息发布动态区间。 [0041] The fourth step is to build a dynamic range of traffic information. 对于任何ー个路段,若期望交通负荷程度小于实际符合程度吋,动态区间为[Bi, HiinaBi+AAi)],否贝U,动态区间为[max(Oji-AAi), BiL这种采用动态区间的发布方式,不仅同时使得出行者路径最优以及路网效M最大,而且能够有效避免交通振汤。 For any ー road segments, if the expected traffic load is less than the actual degree of conformance inch, dynamic interval [Bi, HiinaBi + AAi)], no shellfish U, dynamic interval [max (Oji-AAi), BiL this dynamic range of publishing, not only while allowing travelers optimal path and road network efficiency M maximum, and can effectively avoid traffic vibration soup.

[0042] 上述虽然结合附图对本发明的具体实施方式进行了描述,但并非对本发明保护范围的限制,所属领域技术人员应该明白,在本发明的技术方案的基础上,本领域技术人员不需要付出创造性劳动即可做出的各种修改或变形仍在本发明的保护范围以内。 [0042] The combination with drawings of specific embodiments of the present invention have been described, but not limit the scope of the present invention, those skilled in the art should understand that, on the basis of the technical solution of the present invention, those skilled in the art without paying creative work to make various modifications or variations are still within the scope of the present invention.

Claims (3)

1. 一种能够消除振荡的交通信息发布方法,其特征是,步骤如下: 1)在所有交通监测点上安装交通流检测设备,记录交通流信息参数; 2)采用OD反推技术计算分流节点处的车辆出行OD信息; 3)计算路段期望负荷程度;并与备选路段负荷程度对比判断; 4)通过驾驶员刺激反应模型计算信息发布的上下浮动量,构建信息发布动态区间,以此发布信息。 A traffic information distribution method capable of eliminating oscillations, wherein the following steps: 1) traffic flow detecting apparatus mounted on all traffic monitoring points, recorded traffic information parameter; 2) computing technique using a shunt OD estimation nodes OD at the vehicle travel information; 3) calculating a desired load degree segment; and the alternative link load level comparison determination; 4) calculating the amount of floating up and down by a driver information published stimulation model constructing dynamic information distribution section, to publish information.
2.如权利要求I所述的方法,其特征是,所述步骤2)的具体方法为:以路网中任何一个节点及周边路网为单元,当出行者到达0点的时候,面临m种选择,最终目的地共有n个,其中,m、n均为自然数;根据步骤I)中路段上所检测的交通流信息,采用极大似然OD反推技术即可求得从起点到任何一个终点的出行量。 2. The method of claim I, wherein said step 2) is a specific method: to any node in the road network and the road network as a peripheral unit, when the traveler reaches the zero point, facing m choices, there are n final destination, wherein, m, n are natural numbers; information on the traffic flow in accordance with step I) links the detected maximum likelihood OD estimation technique may be obtained from any origin the amount of a travel destination.
3.如权利要求2所述的方法,其特征是,所述步骤4)的具体方法为: 第一步,根据步骤I)中的交通检测信息得到OP1, OP2, OPffl路段上的交通运行负荷程度B1, B2,. . . , Bm ;0为步骤2)中的0点位置,Pi、P2、…,Pm为步骤2)中的m种选择,m为自然数; 第二步,根据出行者路径最优化和网络运行效益最大化为目标,计算出选择路段上的期望交通负荷程度C1, C2,. . .,Cm,m为自然数; 第三步,计算信息发布上下浮动量AA1, AA2, ...,AAm ;m为自然数,心理学认为刺激量和反应量之间符合对数关系,如果将信息发布变化量作为刺激量的话,则可以用路段上交通负荷程度的变化量来描述反应量,二者之间的关系为: Ai = 1Ogf4 (1) 式中,Ai为反应量,AAi为刺激量,a为模型参数; 作为交通控制者,希望路段交通运行符合程度达到期望值,由此所期望的反应量A i= I Bi-Ci I,则浮动量的 3. The method according to claim 2, wherein said step 4) The specific method is: first, the traffic detection information obtained OP1 step I) is, OP2, operating loads on the transport link OPffl . degree B1, B2 ,., Bm; 0 step 2 to 0-o'clock position) in, Pi, P2, ..., m choices in step 2) is Pm, m is a natural number; the second step, according to travelers and network path optimization goal of maximizing operation efficiency, the calculated desired degree of traffic load on the selected segment C1, C2 ,., Cm, m is a natural number;.. the third step, calculating the amount of information dissemination fluctuate AA1, AA2, ..., AAm; m is a natural number, in line with psychology that between stimulus and reaction amount logarithmic relationship, if the amount of change in information dissemination as the amount of stimulation, then the amount can vary the degree of traffic load on the road to describe the reaction relationship between the amount, both as: Ai = 1Ogf4 (1) where, Ai is the amount of the reaction, the amount of stimulation of AAi, a is the model parameters; as a traffic controller, it is desirable to run in line with the degree of road traffic reaches a desired value, whereby the desired reaction amount a i = I Bi-Ci I, the floating amount of 计算公式为: A4=,-c'丨 U) 式中,Ai为反应量,AAi为刺激量,a为模型参数,BiS实际交通负荷程度即B1,B2, , Bm, Ci为期望交通负荷程度即C1, C2, , Cm, i均为I到m的自然数。 Is calculated as follows: A4 =, - c 'Shu U) where, Ai is the reaction amount, AAi is the amount of stimulation, a is the model parameters, the actual degree of traffic load BiS i.e. B1, B2,, Bm, Ci is the desired degree of traffic load i.e., C1, C2,, Cm, i m are natural numbers of I to. 第四步,构建交通信息发布动态区间,对于任何一个路段,若期望交通负荷程度小于实际符合程度时,动态区间为[Bi, mind, Bi+ AAi)],否则,动态区间为[max (0,Bi- A Ai),Bi],这种采用动态区间的发布方式,不仅同时使得出行者路径最优以及路网效益最大,而且能够有效避免交通振荡。 A fourth step of constructing traffic information dynamic range for any one segment, if desired degree of traffic load is less than the actual degree of compliance, dynamic interval [Bi, mind, Bi + AAi)], otherwise, the dynamic range is [max (0, bi- a Ai), Bi], which uses dynamic publishing section, not only the optimal path while allowing the traveler and the maximum effective road network, and traffic can effectively avoid the oscillation.
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