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A method for predicting traffic jams on intra-regional expressways

A technology of expressway and prediction method, which is applied to the traffic control system of road vehicles, traffic flow detection, instruments, etc., can solve the problems of large amount of calculation, high calculation complexity of prediction method, and many auxiliary devices.

Active Publication Date: 2018-02-09
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although the above two patents can realize the prediction of traffic jams, they not only involve a lot of auxiliary devices, but also involve high computational complexity and a large amount of calculation, and cannot quickly and efficiently predict the occurrence of traffic jams.

Method used

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  • A method for predicting traffic jams on intra-regional expressways
  • A method for predicting traffic jams on intra-regional expressways
  • A method for predicting traffic jams on intra-regional expressways

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] Embodiment 1: as Figure 1-9 As shown, Step1: Establish base station information database: For expressways in the area, base stations are coded in sequence according to the order of continuous distribution of base stations along the expressway, which is recorded as: O=[O 1 ,O 2 ,O 3 ,...,O i ](i=1,2,3,...); and each base station O along the highway in turn i the height H i , the maximum coverage radius R i , Location information registration record, establish base station information database;

[0067] The location information includes the shortest distance D from the base station to the expressway i ;

[0068] Step2: Calculate a single base station O i Coverage interval on the expressway: the data center calls the data in the base station information database, and selects the base station in the first data in the database as the current base station. i ;For the current base station, according to the height H of the current base station i , the maximum coverag...

Embodiment 2

[0113] Embodiment 2: the expressway traffic jam forecasting method in described area, comprises the following steps:

[0114] Step1: Establish base station information database: For expressways in the area, encode base stations in sequence according to the order of continuous distribution of base stations along the expressway, recorded as: O=[O 1 ,O 2 ,O 3 ,...,O 20 ](i=1,2,3,...,20); and each base station O along the highway in turn i the height H i , the maximum coverage radius R i , Location information registration records, using MySQL database software to establish a base station information database;

[0115] Step2: Calculate a single base station O i Coverage interval on the expressway: the data center calls the data in the base station information database, and selects the base station in the first data in the database as the current base station. i ;For the current base station, according to the height H of the current base station i , the maximum coverage rad...

Embodiment 3

[0159] Expressway traffic jam forecasting method in described area, comprises the following steps:

[0160] Step1: Establish base station information database: For expressways in the area, encode base stations in sequence according to the order of continuous distribution of base stations along the expressway, recorded as: O=[O 1 ,O 2 ,O 3 ,...,O 18 ](i=1,2,3,...,18); and each base station O along the highway in turn i the height H i , the maximum coverage radius R i , Location information registration records, using MySQL database software to establish a base station information database;

[0161] Step2: Calculate a single base station O i Coverage interval on the expressway: the data center calls the data in the base station information database, and selects the base station in the first data in the database as the current base station. i ;For the current base station, according to the height H of the current base station i , the maximum coverage radius R of the base ...

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Abstract

The invention, which belongs to the technical field of the traffic control, relates to a prediction method for a traffic jam on an expressway in an area. A base station information database is established; a coverage region of each base station on an expressway and vehicle capacities of the single base station at different driving directions in the expressway coverage region are calculated; according to calculation results, an average headway of the single base station at different driving directions in the expressway coverage region is calculated; and on the basis of integration of data of average headways of all base stations along the expressway in area at different driving directions in the expressway coverage region, a two-dimensional analysis model is constructed, thereby realizing traffic jam prediction of the expressway in area. Therefore, the work cost is saved and the work efficiency is improved; and traffic jam prediction of the expressway in area is realized effectively.

Description

technical field [0001] The invention relates to a method for predicting traffic jams on expressways in a region, and belongs to the technical field of traffic control. Background technique [0002] Nowadays, with the gradual popularization of private cars, the pressure on road traffic is also increasing, and traffic jams have gradually become a common social phenomenon. Therefore, how to timely and effectively predict the occurrence of traffic jams is of great significance. [0003] Existing related patents related to traffic jam prediction, such as application publication number: CN103038117A, the traffic jam prediction algorithm designed by the applicant, in this patent, the power spectrum is obtained by analyzing the speed of the self-vehicle at a specified time in the frequency domain, and according to the power The calculation results of the spectral slope change with time are used to predict traffic jams; [0004] For example, the application publication number: CN10...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/01
CPCG08G1/0129G08G1/0133
Inventor 龙华高杰
Owner KUNMING UNIV OF SCI & TECH