Priority Timing Method of BRT Signals under Arterial Coordinated Control

A technology of coordinated control and signal priority, applied in the field of intelligent traffic management, which can solve problems such as complex implementation

Inactive Publication Date: 2011-12-14
JILIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Compared with the single-point bus priority, when giving bus signal priority, the main line bus priority not only needs to consider the interests of the b

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  • Priority Timing Method of BRT Signals under Arterial Coordinated Control
  • Priority Timing Method of BRT Signals under Arterial Coordinated Control
  • Priority Timing Method of BRT Signals under Arterial Coordinated Control

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Embodiment Construction

[0127] The present invention is described in detail below in conjunction with accompanying drawing:

[0128] The present invention proposes a two-layer optimization method for express bus vehicle signal priority, the upper layer is trunk line coordinated control, and the lower layer is express bus priority control. At the coordination level of the arterial line, the public period, green signal ratio and phase difference are optimized based on the social vehicle flow data detected by the detector; at the priority level of BRT vehicles, the upper and lower limits of the coordination phase green wave band are used as the constraints for adjusting the timing parameters. In the case of not destroying the coordinated phase green wave belt, the method of extending the green light or turning on in advance is used to provide signal priority for BRT vehicles; the priority control process of BRT vehicles is established, and the calculation method of key parameters is determined.

[0129]...

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Abstract

The invention discloses a bus rapid transit signal priority timing method under trunk line coordination control. The bus rapid transit signal priority timing method under the trunk line coordination control comprises the following steps that: 1, an annunciator judges whether a bus application is detected by a bus rapid transit vehicle detector, forecasts a moment t1 when a bus rapid transit vehicle reaches a stop line if the bus rapid transit vehicle detector detects the bus application, and otherwise, ends the judgment at the current moment; 2, if the bus rapid transit vehicle detector detects the bus application during phase green light coordination and the bus rapid transit vehicle reaches the stop line at an intersection during the phase green light coordination, the annunciator keepsthe original signal timing constant, and otherwise, performs green light prolonging control; and 3, if the bus rapid transit vehicle detector detects the bus application during phase red light coordination and the bus rapid transit vehicle reaches the stop line at an intersection during the phase green light coordination, the annunciator keeps the original signal timing constant and otherwise, performs green light in-advance turning-on control.

Description

technical field [0001] The invention relates to a signal timing method for a bus rapid transit (BRT) vehicle belonging to the field of intelligent traffic management, more specifically, the present invention relates to a method for prioritizing timing of a bus rapid transit signal under the coordinated control of an arterial line. Background technique [0002] Arterial signal coordinated control is a common control method in urban traffic control. It takes social traffic flow as the control object, and coordinates the operation of arterial traffic flow by setting the phase difference to improve control efficiency. BRT vehicles are only a special group in urban traffic flow, and BRT signal priority is a perfection and supplement to the urban traffic signal control function. Therefore, compared with the two, the priority level of the arterial coordinated control is higher than that of the BRT vehicle signal priority. [0003] At present, domestic and foreign research on bus s...

Claims

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Application Information

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IPC IPC(8): G08G1/07
Inventor 曲昭伟王殿海宋现敏陈永恒李志慧胡宏宇魏强朱慧
Owner JILIN UNIV
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