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Regional dynamic boundary control method and system for preventing queuing overflow of boundary road section

A boundary control and boundary technology, applied in the field of intelligent transportation, can solve problems such as untargeted solutions to the problem of queuing and overflow in the threshold boundary road section and the diffusion of congested traffic flow on the boundary road section, achieving high-precision dynamic boundary control, avoiding situation deterioration, The effect of reducing the probability of overflow

Active Publication Date: 2020-11-13
SHANDONG JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The inventors of the present disclosure found that the above-mentioned schemes all involve regional macroscopic traffic flow modeling and formulation of regional boundary control schemes, but these studies do not specifically solve the problem of queuing overflow in threshold boundary road sections, and the implementation of the control strategy will lead to boundary road sections The congested traffic flow spreads to the upstream intersection

Method used

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  • Regional dynamic boundary control method and system for preventing queuing overflow of boundary road section
  • Regional dynamic boundary control method and system for preventing queuing overflow of boundary road section
  • Regional dynamic boundary control method and system for preventing queuing overflow of boundary road section

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Embodiment 1

[0034] Such as figure 1 As shown, Embodiment 1 of the present disclosure provides a regional dynamic border control method for preventing queue overflow of border sections, including the following steps:

[0035] S1: Use the extended Kalman filter method to estimate the number of queuing vehicles in the next sampling period on the border road section, and calculate the maximum accommodating total number of vehicles on the border road section at the same time;

[0036] S2: Use the estimated number of queuing vehicles and the maximum number of vehicles that can be accommodated in each boundary road section to dynamically divide the boundary road section, and obtain a set of boundary road sections with sufficient available storage space and a set of boundary road sections with insufficient available storage space;

[0037] S3: Construct the MFD model of the urban area and determine the key accumulation;

[0038] S4: Use the MFD model to predict the cumulative amount of the next ...

Embodiment 2

[0082] Embodiment 2 of the present disclosure provides a regional dynamic boundary control system for preventing queuing overflow of boundary sections, including:

[0083] The dynamic division module is configured to: dynamically divide the boundary road section according to the acquired traffic flow information of the boundary road section, and obtain a set of boundary road sections with sufficient available storage space and a set of boundary road sections with insufficient available storage space;

[0084] The cumulative quantity calculation module is configured to: obtain the key cumulative quantity of the region according to the preset regional macroscopic basic map model, and predict the predicted cumulative quantity of the next sampling period of the region;

[0085] The traffic flow operation control module is configured to: dynamically control the traffic flow operation of the regional boundary intersection according to the deviation between the predicted cumulative am...

Embodiment 3

[0088] Embodiment 3 of the present disclosure provides a medium on which a program is stored, and when the program is executed by a processor, the steps in the regional dynamic border control method for preventing border section queuing overflow as described in Embodiment 1 of the present disclosure are implemented, The steps are:

[0089] According to the acquired traffic flow information of the boundary road section, the boundary road section is dynamically divided, and a set of boundary road sections with sufficient available storage space and a set of boundary road sections with insufficient available storage space are obtained;

[0090] According to the preset regional macroscopic basic map model, the key cumulative quantity of the region is obtained, and the predicted cumulative quantity of the next sampling period of the region is estimated;

[0091] According to the deviation between the predicted cumulant and the key cumulant and the collection of each boundary sectio...

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Abstract

The invention provides a regional dynamic boundary control method and system for preventing the queuing overflow of a boundary road section, and the method comprises the steps: estimating the number of queuing vehicles of the boundary road section through employing a Kalman filtering extension method according to the obtained traffic flow information of the boundary road section, and calculating the maximum total number of receivable vehicles of the boundary road section; dynamically dividing the boundary road sections by utilizing the estimated value of the number of queuing vehicles of eachboundary road section and the maximum total number of receivable vehicles to obtain a boundary road section set with sufficient available storage space and a boundary road section set with insufficient available storage space; obtaining a key cumulant of the region according to a preset region macroscopic basic graph model, and estimating a predicted cumulant of the region in the next sampling period; and according to the deviation between the predicted cumulant and the most critical cumulant and each boundary road section set, dynamically controlling the traffic flow operation of the regionalboundary intersection. The situation deterioration of the regional traffic flow is actively avoided, and the occurrence probability of overflow of the boundary road section is reduced.

Description

technical field [0001] The present disclosure relates to the technical field of intelligent transportation, in particular to a regional dynamic border control method and system for preventing queue overflow in border sections. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art. [0003] With the rapid development of the economy and the continuous increase of car ownership, the demand for transportation has become increasingly prominent, and more and more urban roads are in short supply. Urban traffic congestion is gradually showing a trend of evolving from bottleneck points to arterial roads and regional road networks. The resulting regional traffic congestion has become a common problem in large and medium-sized cities in China. How to use traffic control and other means to regulate the operation of regional traffic flow, avoid the occurrence of re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/01G08G1/042G08G1/065G08G1/08
CPCG08G1/0125G08G1/0137G08G1/042G08G1/065G08G1/08G08G1/0145
Inventor 郭亚娟周常坤郝慎学
Owner SHANDONG JIAOTONG UNIV