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Method for predicting road traffic flow based on global positioning system (GPS) data

A technology of GPS data and road traffic, applied in the field of traffic management, can solve the problems of huge capital and manpower investment and poor operability, and achieve the effect of solving traffic congestion and reducing capital and manpower investment

Inactive Publication Date: 2012-10-17
TIANJIN UNIV
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AI Technical Summary

Problems solved by technology

Installing dense detection equipment on the road is definitely the most effective method, but the investment in capital and manpower is huge, and obviously its operability is poor

Method used

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Embodiment Construction

[0012] In a city with a certain scale of vehicles, using GPS equipment to collect real-time location data for traffic flow prediction is one of the important ways to solve the problem of predicting traffic flow. The invention utilizes mobile phone data to predict and monitor road traffic flow.

[0013] The traffic flow prediction method of the present invention is divided into two stages, the first step is the observation stage, and the second step is the real-time prediction stage.

[0014] The present invention first divides the time that needs to be predicted in a day into various time periods, for example, from 6:00 am to 10:00 pm, divided into 80 time periods according to the number of minutes. In the observation stage, the location and total number of vehicles on this road are collected and counted respectively according to each time period. In the prediction stage, the average traffic speed is calculated according to the average traffic speed of each time period and th...

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Abstract

The invention belongs to the technical field of traffic management and relates to a method for predicting road traffic flow based on global positioning system (GPS) data. The method comprises the following steps of: dividing time during which the traffic flow is required to be predicted and monitored in a day into different periods of time; in each observation period of time, monitoring the positions of taxis loaded with vehicle-mounted GPSs to acquire GPS position data in each period of time, monitoring road traffic flow data in each period of time, and counting; calculating the speed corresponding to the position of each vehicle in the GPS position data at each historical moment and the average speed of all vehicles on the whole main road; and monitoring real-time position data of each vehicle in each period of time in real time, calculating the instantaneous speed of each vehicle and the average traffic flow speed of the road, predicting future traffic flow data, and judging whether traffic jams occur or not. By the method, the capital and manpower investment of road detection equipment can be reduced, and a traffic congestion problem can be solved in an auxiliary mode.

Description

technical field [0001] The invention belongs to the technical field of traffic management and relates to a traffic flow prediction method. Background technique [0002] At present, with the rapid development of society and economy, traffic congestion has become a serious problem restricting social development. At the same time, when public emergencies occur, traffic congestion will seriously affect the response speed of emergency personnel to accidents, causing many unnecessary economic losses. Therefore, being able to predict traffic flow in a timely and efficient manner through effective means is an effective means to solve traffic congestion. Installing dense detection equipment on the road is definitely the most effective method, but its capital and manpower investment is very huge, and its operability is obviously poor. Contents of the invention [0003] The purpose of the present invention is to overcome the above-mentioned deficiencies of the prior art and provide...

Claims

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Application Information

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IPC IPC(8): G08G1/00G08G1/01
Inventor 肖浩王文俊
Owner TIANJIN UNIV
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