Short-term prediction method of road travel time and system

A travel time, short-term prediction technology, applied in the field of intelligent transportation, can solve the problems of not being able to adapt to all roads, small application range, low detection accuracy, etc., achieving the effect of fast calculation speed, easy to use flexibly, and simplified system complexity

Active Publication Date: 2016-03-16
QINGDAO HISENSE TRANS TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention provides a short-term prediction method of road travel time, which solves the technical problems that the existing prediction method has a small application range, cannot adapt to all roads, and has low detection accuracy

Method used

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  • Short-term prediction method of road travel time and system
  • Short-term prediction method of road travel time and system
  • Short-term prediction method of road travel time and system

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Embodiment Construction

[0030] The specific embodiment of the present invention is described in further detail below in conjunction with accompanying drawing:

[0031] like figure 1 As shown, the present embodiment proposes a short-term prediction method for road travel time, including the following steps:

[0032] S1: Collect and store the license plate data of vehicles passing through the upstream and downstream of the traffic section. That is to collect and store the license plate data of the vehicles entering from the upstream of the passing section and leaving from the downstream of the passing section.

[0033] Specifically, the license plate data is mainly collected through upstream and downstream data collection equipment (electronic police, traffic checkpoints, electronic license plates, etc.) in the traffic section. License plate data collection includes: real-time collection of license plate data that passes through the upstream stop line section and enters the pass area at the upstream ...

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Abstract

The invention discloses a short-term prediction method of road travel time and a system. The prediction method comprises the step of determining road travel time short-term prediction value according to relation between an actual travel value in the current sampling period and a history travel tile value in the history sampling period and the smoothing factor, thereby precisely predicting travel time of a vehicle when getting through a passing zone within the further period. According to the invention, real-time acquisition of vehicle information can be achieved via various kinds of current devices such as electronic polices, traffic crossroads and electronic license plates; prediction travel time can be obtained by combining the history rules and the current real-time date; the prediction method is characterized by stable change and small volatility and is capable of well describing history traffic state change characteristics and real-time trends; the prediction precision degree is high and the short-term prediction precision degree in 20m can reach 90%; algorithm is simple and easy to achieve; operation speed is fast; other trend variables are not related; and complexity of the system is simplified, thereby facilitating flexible use of the system in projects.

Description

technical field [0001] The invention relates to the field of intelligent transportation, in particular to a method and system for short-term prediction of road travel time. Background technique [0002] With the rapid advancement of the urbanization process, people's living standards are improving day by day, and the number of urban motor vehicles is increasing rapidly, which brings about the increasingly serious phenomenon of urban road traffic congestion. The automatic and timely judgment of urban road traffic conditions provides travelers with short-term predictions of urban road travel time, which helps travelers choose the right time to travel, saves time, slows down urban traffic congestion, and improves urban road traffic comprehensiveness. management level. [0003] Interval travel time is an important factor reflecting the operation status of urban roads. Accurate travel time prediction can provide travelers with future traffic conditions and changing trends, guid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/01
CPCG08G1/0104G08G1/0129
Inventor 尹纪军王栋梁钮玉晓蔡斌冰高柳雄一
Owner QINGDAO HISENSE TRANS TECH
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