Optimization method for multi-bandwidth artery bus control scheme

A technology of control scheme and optimization method, which is applied to the traffic control system of road vehicles, traffic control systems, instruments, etc., can solve the problem of less robust optimization schemes, and achieve the effect of improving the green light extension

Active Publication Date: 2019-05-03
TONGJI UNIV
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Problems solved by technology

Affected by the randomness of parameters such as stop time and driving speed, the arrival time of buses at intersections is also uncertain. The basis for providing priority schemes for buses is generally based on accurate predictions, and discuss random robust optimization schemes There are few related studies

Method used

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  • Optimization method for multi-bandwidth artery bus control scheme
  • Optimization method for multi-bandwidth artery bus control scheme
  • Optimization method for multi-bandwidth artery bus control scheme

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Embodiment

[0044] This application proposes an optimization method for a multi-bandwidth arterial bus control scheme. In this example, the method is based on the following assumptions:

[0045] (1) Each cycle is independent of each other, and the traffic flow and arrival distribution are consistent;

[0046] (2) When multiple buses arrive in one cycle, at most one bus at each intersection can use the bus priority strategy;

[0047] (3) When more than one bus arrives in one cycle, the driving of the bus will not be disturbed by other buses, but it is consistent with the principle that the vehicle that arrives at the stop line first also leaves the intersection first;

[0048] (4) The driving speed of the bus between two adjacent intersections remains unchanged, and the acceleration and deceleration process can be completed instantaneously when parking or starting at the bus station and intersection.

[0049] This method comprises the following steps:

[0050] S1. In a line with multiple...

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Abstract

The invention relates to an optimization method for a multi-bandwidth artery bus control scheme. The method includes the following steps: S1, in some lines having multiple intersections in a trunk line network, collecting trajectory data of multiple bus running lines according to detection points arranged at a certain distance, a bus adopting a bus priority strategy; and S2, optimizing the trafficflow that the bus is driven from a in the trunk line network from the previous intersection to the last intersection by utilizing a mathematical optimization model and adjusting periods, phase difference signals, car green wave bands and bus trajectory variables so that a optimization control scheme of the bus can be obtained. Compared with the prior art, the method can realize simultaneous optimal solution of sub-area division and green wave design, the suitable condition of the method is that the running situations of the bus are relatively stable, so that the bandwidths of a green wave bands can adapt the random fluctuation of the running of the bus, and therefore, the control effects of the bus priority strategy can be enhanced.

Description

technical field [0001] The invention relates to the technical field of bus priority control, in particular to an optimization method for a multi-bandwidth arterial bus control scheme. Background technique [0002] Public transportation has the advantages of intensive efficiency, energy saving and environmental protection. Prioritizing the development of public transportation is a strategic choice for building a resource-saving and environment-friendly society. The construction of bus lanes, supplemented by the bus signal priority strategy, plays an important role in improving the level of bus service and enhancing the attractiveness of the bus system. Bus-only lanes realize the exclusive right-of-way for buses in time and space, however, the complexity of the traffic system and bus travel network itself determines the complexity of the impact of bus-only lanes. With the implementation of a large number of bus-only lanes, how to effectively rely on bus-only lanes to improve ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/087
Inventor 马万经郑喆
Owner TONGJI UNIV
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