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Method for predicting big event traffic dynamic simulation jamming based on vehicle license plate recognition data

A technology of license plate recognition and dynamic simulation, applied in the field of intelligent transportation, can solve unspecific problems

Active Publication Date: 2018-07-27
HANGZHOU YUANTIAO TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, while it is widely used, problems also arise. od data can only describe how many vehicles are traveling from a certain starting point to a certain terminal point in a certain period of time. When describing the demand for the traffic road network, it is not specific.

Method used

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  • Method for predicting big event traffic dynamic simulation jamming based on vehicle license plate recognition data
  • Method for predicting big event traffic dynamic simulation jamming based on vehicle license plate recognition data
  • Method for predicting big event traffic dynamic simulation jamming based on vehicle license plate recognition data

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Embodiment Construction

[0034] This embodiment provides a technical solution:

[0035] A method for traffic dynamic simulation congestion prediction of a large event based on license plate recognition data, the method comprising the following steps:

[0036] S01. Demarcate the area by the electronic map and convert it into a map file that can be imported into the simulation software.

[0037] S02. Add a corresponding description field in the map file, where the description field includes the number of lanes, road grade and speed limit.

[0038] S03. Import the above-mentioned map file through the road network import tool in the simulation software to generate an urban road network model. The simulation software mentioned in this embodiment can choose mesoscopic simulation software DTALite.

[0039] S04. Using the license plate recognition data to calibrate the simulation parameters of the road section, the simulation parameters of the road section include the traffic capacity, the free flow speed o...

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Abstract

The invention discloses a method for predicting big event traffic dynamic simulation jamming based on vehicle license plate recognition data, and particularly relates to the technical field of intelligent traffic. The method comprises the following steps of adopting simulation software to construct an urban road network model; using the vehicle license plate recognition data to calibrate road section simulation parameters; counting the vehicle license plate recognition data to obtain driving track data of each vehicle; using the vehicle license plate recognition data to count the road sectionflow of every 15 minutes within an assigned time duration; adopting a probabilistic principle component analysis model to complete the interpolation of missing data of all clamping openings and predicting the completed data to obtain the future traffic state; judging whether the standardized root-mean-square error between the history traffic simulation state and the future traffic state is 10% ofa preset threshold value or not. By means of the method for predicting big event traffic dynamic simulation jamming based on the vehicle license plate recognition data, the simulation software is utilized to dynamically allocate the vehicles to obtain the future big event traffic state and output the corresponding big event predicting result. The method has the advantages of having a high automated degree and an accurate predicting result.

Description

technical field [0001] The invention relates to the technical field of intelligent transportation, in particular to a method for traffic dynamic simulation congestion prediction of large events based on license plate recognition data. Background technique [0002] License plate recognition data includes road vehicle data captured by checkpoints, electric police and other equipment, which can record the moment when vehicles pass through a specific lane at an intersection, and record the vehicle's license plate information. Major events include holiday parades, large-scale sports events, concerts, and the opening of commercial complexes. Before a major event occurs, a traffic control plan is generally formulated for the surrounding traffic, and traffic simulation can quantify the impact of the event on the surrounding traffic. [0003] The existing technology has combined license plate recognition data with traffic simulation, converted data statistics into od flow matrix dat...

Claims

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Application Information

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IPC IPC(8): G08G1/01G06F17/50
CPCG06F30/20G08G1/0129G08G1/0133
Inventor 夏莹杰蒋萌青吴小雪
Owner HANGZHOU YUANTIAO TECH CO LTD
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