Method and system for automatically generating urban road traffic guidance strategy

A road traffic, automatic generation technology, applied in the arrangement of variable traffic instructions, special data processing applications, instruments, etc., can solve the problem of difficult to meet the needs of dynamic formulation and correction of guidance strategies, lack of theoretical method analysis technology, traffic guidance strategies Problems such as limited effect

Inactive Publication Date: 2014-04-02
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the continuous improvement of intelligent transportation system infrastructure, further deepening the guidance and management of the traffic system faces the following three challenges: (1) The formulation and implementation of traffic guidance strategies in the past are mostly based on the subjective knowledge and work experience of traffic managers, Lacking the support of scientific theoretical methods and advanced analysis techniques, it is not yet possible to formulate an induction strategy that considers the complexity of the temporal and spatial evolution of road traffic flow from the perspective of system science; (2) This release strategy based on personal experience cannot fully reflect the spatial and temporal evolution of road traffic fl

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  • Method and system for automatically generating urban road traffic guidance strategy
  • Method and system for automatically generating urban road traffic guidance strategy
  • Method and system for automatically generating urban road traffic guidance strategy

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Experimental program
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Embodiment 1

[0043] Such as figure 1 The flow chart of the automatic generation method for urban road traffic guidance strategy is based on intelligent traffic theory, spatial autocorrelation theory, fuzzy mathematics theory, statistical methods and computer technology. Query the historical induction information when similar traffic events occurred in history, and count the information release frequency of each VMS variable information board, the release time of historical induction information and the distribution of the number of VMS releases, and calculate the traffic flow data of each VMS Induce feasibility in real time, determine the final induction strategy and display it. It mainly includes the following steps:

[0044] Step 1: Define various types of traffic event information that needs to be input, including the type of traffic event, place of occurrence, time of occurrence, etc.; automatically generate inductive policy release content according to the input description informati...

Embodiment 2

[0072] According to the method of the present invention, a system for automatically generating urban road traffic guidance strategies is designed. figure 2 The basic system frame diagram of the automatic generation system for urban road traffic guidance strategy, the system consists of traffic event information and system parameter input module, historical guidance information query and analysis module, traffic state space imbalance analysis module based on real-time traffic flow data, traffic It consists of 5 parts: event information publishing, custom editing module of scope to be selected, and final inducement strategy generation and display module.

[0073] (1) Traffic incident information and system parameter input module

[0074] This module defines the input interface of each type of traffic event information, including how to describe the traffic event (such as the time, place, and severity of the event), and in what format to input the traffic event description infor...

Embodiment 3

[0097] In order to intuitively illustrate the process of how to use the method and system of the present invention to automatically generate road traffic guidance strategies, an example is used here for demonstration. Taking a traffic accident in history as an example, the historical traffic flow data at that time is the real-time traffic flow data when the event occurred.

[0098] First, input the traffic event information and system parameters as follows:

[0099] Traffic incident information: The time of occurrence is 14:00, September 5, 2012; the location of the occurrence is the north-south road of Xizhimen; the estimated cleaning time is 10 minutes; the recommended detour location is the West Third Ring Road; the severity of the incident is 0.5.

[0100] Parameter settings of each system: release time confidence is 0.6; considering historical induced information duration is 1 year (that is, September 6, 2011-September 5, 2012); considering real-time traffic flow data is th...

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Abstract

The invention relates to a method and a system for automatically generating an urban road traffic guidance strategy. According to the method and the system, by applying the intelligent traffic theory, the spatial autocorrelation theory, the fuzzy mathematic theory, an statistical method and the computer technology, real-time traffic flow data and historical data are researched and processed, and therefore, under the condition that a traffic incident occurs in a road traffic network, the traffic guidance strategy which can be released in time through VMS (variable message signs) on a road is automatically generated. According to the method and the system, by taking historical artificial guidance information and the real-time traffic flow data as input data, on the basis that historical guidance empirical laws are analyzed and real-time traffic flow features are excavated, a final guidance release strategy is determined by applying a traffic state spatial inequality analysis method provided by the invention. A proposal and strategy scheme can be provided for the quick release of the guidance information of an urban traffic management department when certain traffic incidents occur, such as road accidents, congestion, severe weather, management and control, and the like.

Description

technical field [0001] The invention relates to an urban road traffic system, in particular to a method and system for automatically generating an urban road traffic guidance strategy. Background technique [0002] With the in-depth development of my country's urbanization process, the urban traffic problem has become a severe challenge faced by many big cities. In the past, the development model that focused on improving the supply capacity of the transportation system is increasingly limited by the city's limited space-time resources. Therefore, many cities regard the sustainable development strategy based on intelligent transportation technology and traffic demand management as a way to alleviate urban traffic congestion, improve traffic service levels and The main direction to reduce transportation energy consumption and emissions. In order to ensure the effect of traffic guidance on the road traffic network, on the basis of analyzing various historical information and ...

Claims

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Application Information

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IPC IPC(8): G06F19/00G08G1/09
Inventor 陈绍宽韦伟刘爽毛保华关伟樊玲玲
Owner BEIJING JIAOTONG UNIV
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