A deep learning short-term traffic flow prediction method considering spatial-temporal association

Yang ZHANG; Yue HU; Dongrong XIN

doi:10.11959/j.issn.2096-6652.202117

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A deep learning short-term traffic flow prediction method considering spatial-temporal association

Special Topic: Intelligent Transportation Systems and Applications | 更新时间：2024-06-05

- A deep learning short-term traffic flow prediction method considering spatial-temporal association
- Chinese Journal of Intelligent Science and Technology Vol. 3, Issue 2, Pages: 172-178(2021)
- 作者机构：
  
  1. 福建工程学院交通运输学院，福建福州 350118
  2. 福建工程学院土木工程学院，福建福州 350118
- 作者简介：
- 基金信息：
  
  The Special Fund for Education and Scientific Research of Fujian Provincial Department of Finance(GY-Z21001)
- DOI：10.11959/j.issn.2096-6652.202117
  CLC： TP274.2
- Published Online：2021-06，
  
  Published：15 June 2021
- 稿件说明：
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Yang ZHANG, Yue HU, Dongrong XIN. A deep learning short-term traffic flow prediction method considering spatial-temporal association[J]. Chinese journal of intelligent science and technology, 2021, 3(2): 172-178.
DOI：

Yang ZHANG, Yue HU, Dongrong XIN. A deep learning short-term traffic flow prediction method considering spatial-temporal association[J]. Chinese journal of intelligent science and technology, 2021, 3(2): 172-178. DOI： 10.11959/j.issn.2096-6652.202117.

摘要

空间关联特性的关联因素过于复杂且难以量化等问题导致短时交通流预测过于依赖时间关联特性。针对这一问题，提出一种考虑时空关联的深度学习短时交通流预测方法。首先，通过构建同时考虑距离、车流流量相似性和车流速度相似性的空间关联性度量函数，量化目标路段与周边关联道路间的空间关联性。然后，构建内嵌长短时记忆神经元的卷积神经网络模型，利用长短时记忆神经元提取数据间的时间关联性，利用空间关联性度量值及交通数据的卷积传输提取数据间的空间关联性，以实现同时考虑时空关联性的交通流预测。实验结果表明，提出的方法能适应工作日和周末等不同交通流特性条件下的短时预测，且与经典方法相比，预测精度更优，在工作日和周末的预测偏差分别为10.45%和12.35%。

Abstract

The short-term traffic flow prediction is too dependent on the time correlation characteristics

which due to the problems that the correlation factors of the spatial correlation characteristics are too complicated and difficult to quantify.In response to this defect

a deep learning short-term traffic flow prediction method considering spatial-temporal association was proposed.Firstly

by constructing a spatial association measurement function that simultaneously considers distance

flow similarity

and speed similarity

the spatial correlation between the target road segment and the surrounding associated road segments was quantified and predicted.Then

a convolutional neural network model with long short-term memory neurons embedded was constructed.The long short-term memory neurons were used to extract the temporal correlation characteristics between the data

and the spatial correlation metric and the convolution transmission of traffic data were used to extract the spatial correlation characteristics between the data

so as to realize the traffic flow prediction considering the spatial-temporal association.The experimental results show that the proposed method can adapt to short-term forecasting under different traffic flow characteristics such as weekdays and weekends

and the prediction accuracy is better than that of the classical methods.In weekdays and weekends

the forecast bias are 10.45% and 12.35% respectively.

关键词

Keywords

references

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