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Method and device for predicting traffic flow abnormal aggregation

A prediction method and traffic flow technology, applied in the field of traffic information, can solve problems such as abnormal accumulation of empty taxis

Inactive Publication Date: 2021-05-11
QINGDAO ZTE ITS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The embodiment of the present invention provides a method and device for predicting abnormal traffic flow aggregation, which solves the problem of unloaded taxis by calculating the utilization rate of taxis in each taxi sub-area and then making corresponding adjustments to unloaded taxis. The problem of abnormal clustering

Method used

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  • Method and device for predicting traffic flow abnormal aggregation

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] A method for predicting abnormal traffic flow aggregation, comprising:

[0063] S1: Divide the taxi-hailing area into multiple taxi-hailing sub-areas in advance. The taxi-hailing area can be a certain city or a large business district. Divide the taxi-hailing area into multiple taxi-hailing sub-areas. The division can also be configured according to the actual situation, and the car use situation in different time periods in each taxi sub-area is obtained from the database, and the car use time period is divided into car use peak periods according to the number of cars used in different time periods , The smooth period of car use and the low period of car use;

[0064] S2: According to the total number of taxis S and the number of taxis Z in each taxi sub-area within a certain period of time, the standard car utilization rate is obtained Among them, 0.3≤R during the peak period of preset car use 高 ≤0.5, car use flat period 0.5平 ≤0.7, car trough period 0.7低 ≤0.9, beca...

Embodiment 2

[0079] A device for predicting abnormal traffic flow aggregation, comprising:

[0080] The first dividing unit, the first dividing unit is used to divide the taxi-hailing area into multiple taxi-hailing sub-areas, and divide the taxi-hailing area into multiple taxi-hailing sub-areas according to the area;

[0081] The first acquisition unit, the first acquisition unit is used to acquire the car usage situation in different time periods in each taxi sub-area from the database;

[0082] The second division unit, the second division unit is used to divide the time period of vehicle use into peak period of vehicle use, smooth period of vehicle use and low period of vehicle use according to the number of vehicles used in different time periods;

[0083] The first preset unit, the first preset unit is used to set the permitted car rate in the rush hour of a taxi sub-area 0.3≤R 高 ≤0.5, where, S 高 is the total number of taxis in the taxi sub-area, Z 高 is the number of taxis in th...

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Abstract

The invention discloses a method and a device for predicating traffic flow abnormal aggregation. A city is divided into a plurality of taxi taking sub-regions in advance, a standard taxi utilization rate is obtained according to the total number S of taxies in each taxi taking sub-area and the number Z of taxies in a passenger carrying state, and an actual taxi utilization rate R is compared with a standard taxi utilization rate R0 according to an actual situation; if the actual car use rate R is within the range of the standard car use rate R0, it is indicated that no-load cars in the taxi taking sub-area in the time period are not gathered abnormally, adjustment is not needed, and driving data of all taxies in the next set of taxi taking sub-area are collected according to a preset collection period T; and if the actual use rate R is smaller than the range of the standard use rate R0, a signal indicating that no-load taxies in the taxiing sub-area leave the taxiing sub-area is sent to the taxiing sub-area, and if the actual use rate R is larger than the range of the standard use rate R0, a signal indicating that no-load taxies near the taxiing sub-area enter the taxiing sub-area is sent to the no-load taxies near the taxiing sub-area.

Description

technical field [0001] The invention relates to the technical field of traffic information, in particular to a method and device for predicting abnormal accumulation of traffic flow. Background technique [0002] As a necessary means of transportation in the city, taxis play an irreplaceable role in relieving urban traffic pressure and saving social resources. However, the cruising route of taxis has no fixed route, and abnormal gatherings often occur, resulting in some areas being empty. There is a surplus of taxis, and the supply of cars in some areas is in short supply, which is not conducive to the travel of passengers. If the city can be divided into many taxi sub-areas, the taxi sub-area can be judged according to the taxi usage rate in each taxi sub-area Whether the traffic flow of empty taxis in the taxi is abnormally gathered and then adjusted in time can be more conducive to the travel of passengers. Contents of the invention [0003] The embodiment of the prese...

Claims

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Application Information

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IPC IPC(8): G08G1/00G08G1/01G06Q10/04G06Q50/26
CPCG06Q10/04G06Q50/26G08G1/0104G08G1/20
Inventor 刘海峰邓华黄中媛王昕徐强曾庆驰
Owner QINGDAO ZTE ITS LTD