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Method for coordinating inductive sub-zone of intelligent dynamic route inductive system

A coordination method and inducer technology, applied in traffic control systems of road vehicles, traffic control systems, instruments, etc., can solve problems such as imperfect DRGS models, complex algorithms, and low accuracy of induced information, and achieve easy implementation and implementation Simple steps and proven effectiveness

Inactive Publication Date: 2009-06-24
TIANJIN UNIV
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Problems solved by technology

[0005] In order to solve the problems existing in the prior art, the present invention provides an intelligent dynamic route guidance system induced sub-area coordination method, on the basis of the intelligent DRGS framework, the research on the internal coordination strategy of the induced sub-area in DRGS solves the problem In the past, the DRGS model was not perfect, the algorithm was complex, and the accuracy of induced information was low

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  • Method for coordinating inductive sub-zone of intelligent dynamic route inductive system
  • Method for coordinating inductive sub-zone of intelligent dynamic route inductive system
  • Method for coordinating inductive sub-zone of intelligent dynamic route inductive system

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Embodiment Construction

[0044] The present invention will be described in further detail below in conjunction with the accompanying drawings. This embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation is given, but the protection scope of the present invention is not limited to the following embodiments.

[0045] The traffic flow of the road section where the guidance information sign is located is the traffic flow to be induced by the guidance unit. The traffic flow induced by one guidance unit is divided into multiple directions, and the main absorption point of the traffic flow in each direction is called the target of the traffic flow of the guidance unit. Generally, there are no more than 3 target endpoints for one induction unit.

[0046] The goal of intelligent DRGS is to balance the traffic flow of the road network, so that the traffic flow is evenly distributed on each road section, so as to fully utilize the traffic capacity...

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Abstract

The invention discloses a coordination method for an intelligent type dynamic route guidance system and a guidance subarea. The method comprises the following steps: firstly, the same road junction guidance units in the guidance subarea are coordinated, the optimum guidance information is withdrawn from a knowledge base, and the saturatation degree of the road section of a connecting road junction is re-predicted; secondly, after the guidance information is added in, the states of the guidance units of the downstream relevant road junctions are readjusted from the most up-stream road junction in the guidance subarea according to the obtained saturatation degree (the step 1) of the road section of the connecting road junction by prediction; and thirdly, if the states of the guidance units for the downstream road junction are not changed, the coordination between the two road junctions is ended; otherwise, the states of the relevant guidance units for the downstream road junction are adjusted. The mutually independent guidance units in the guidance subarea are connected through the states of the guidance units under the intelligent type DRGS frame; and meanwhile, the influence of the traffic flow of the upstream guidance units as well as the traffic flow of other guidance units for the same road junction on the decision-making guidance units are reflected.

Description

technical field [0001] The invention relates to a traffic control system, in particular to an intelligent dynamic route guidance system inducing sub-area coordination method. Background technique [0002] Dynamic Route Guidance System (Dynamic Route Guidance System, DRGS) is an important part of the intelligent transportation system and an important means to improve the efficiency of the road network system. Its main function is to make full use of the traffic capacity of the road network by guiding the traffic flow path. Keep the road network smooth and reduce travel time. DRGS has been proposed for more than 20 years, and many scholars have made great efforts for its development and achieved some results, among which the most influential one is the shortest path problem in traffic, see Proceedings of the Eighth Inernational Federation of Automatic Control (IFAC) Symposium onTransportation Systems.June.1997(2): 551-556. (The 8th International Automatic Control Federation I...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/00
Inventor 钟石泉马寿峰贾宁刘建美
Owner TIANJIN UNIV
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