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arXiv · 2109.10253

Short-term traffic prediction using physics-aware neural networks

Mike Pereira·Annika Lang·Balázs Kulcsár
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Abstract

In this work, we propose an algorithm performing short-term predictions of the flux of vehicles on a stretch of road, using past measurements of the flux. This algorithm is based on a physics-aware recurrent neural network. A discretization of a macroscopic traffic flow model (using the so-called Traffic Reaction Model) is embedded in the architecture of the network and yields flux predictions based on estimated and predicted space-time dependent traffic parameters. These parameters are themselves obtained using a succession of LSTM ans simple recurrent neural networks. Besides, on top of the predictions, the algorithm yields a smoothing of its inputs which is also physically-constrained by the macroscopic traffic flow model. The algorithm is tested on raw flux measurements obtained from loop detectors.

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BibTeXRIS

Mike Pereira, Annika Lang, Balázs Kulcsár. 2021-09-21. Short-term traffic prediction using physics-aware neural networks. https://doi.org/10.1016/j.trc.2022.103772

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