Network-wide Multi-step Traffic Volume Prediction using Graph
Convolutional Gated Recurrent Neural Network
- URL: http://arxiv.org/abs/2111.11337v1
- Date: Mon, 22 Nov 2021 16:41:13 GMT
- Title: Network-wide Multi-step Traffic Volume Prediction using Graph
Convolutional Gated Recurrent Neural Network
- Authors: Lei Lin, Weizi Li, Lei Zhu
- Abstract summary: We propose a novel deep learning model, Graph Convolutional Gated Recurrent Neural Network (GCGRNN), to predict network-wide, multi-step traffic volume.
We have evaluated our model using two traffic datasets extracted from 150 sensors in Los Angeles, California, at the time resolutions one hour and 15 minutes, respectively.
- Score: 16.56822335262946
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: Accurate prediction of network-wide traffic conditions is essential for
intelligent transportation systems. In the last decade, machine learning
techniques have been widely used for this task, resulting in state-of-the-art
performance. We propose a novel deep learning model, Graph Convolutional Gated
Recurrent Neural Network (GCGRNN), to predict network-wide, multi-step traffic
volume. GCGRNN can automatically capture spatial correlations between traffic
sensors and temporal dependencies in historical traffic data. We have evaluated
our model using two traffic datasets extracted from 150 sensors in Los Angeles,
California, at the time resolutions one hour and 15 minutes, respectively. The
results show that our model outperforms the other five benchmark models in
terms of prediction accuracy. For instance, our model reduces MAE by 25.3%,
RMSE by 29.2%, and MAPE by 20.2%, compared to the state-of-the-art Diffusion
Convolutional Recurrent Neural Network (DCRNN) model using the hourly dataset.
Our model also achieves faster training than DCRNN by up to 52%. The data and
implementation of GCGRNN can be found at
https://github.com/leilin-research/GCGRNN.
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