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Title	Traffic Flow Prediction For Smart Traffic Lights Using Machine Learning Algorithms
ID_Doc	58585
Authors	Navarro-Espinoza A.; López-Bonilla O.R.; García-Guerrero E.E.; Tlelo-Cuautle E.; López-Mancilla D.; Hernández-Mejía C.; Inzunza-González E.
Year	2022
Published	Technologies, 10, 1
DOI	http://dx.doi.org/10.3390/technologies10010005
Abstract	Nowadays, many cities have problems with traffic congestion at certain peak hours, which produces more pollution, noise and stress for citizens. Neural networks (NN) and machine-learning (ML) approaches are increasingly used to solve real-world problems, overcoming analytical and statistical methods, due to their ability to deal with dynamic behavior over time and with a large number of parameters in massive data. In this paper, machine-learning (ML) and deep-learning (DL) algorithms are proposed for predicting traffic flow at an intersection, thus laying the groundwork for adaptive traffic control, either by remote control of traffic lights or by applying an algorithm that adjusts the timing according to the predicted flow. Therefore, this work only focuses on traffic flow prediction. Two public datasets are used to train, validate and test the proposed ML and DL models. The first one contains the number of vehicles sampled every five minutes at six intersections for 56 days using different sensors. For this research, four of the six intersections are used to train the ML and DL models. The Multilayer Perceptron Neural Network (MLP-NN) obtained better results (R-Squared and EV score of 0.93) and took less training time, followed closely by Gradient Boosting then Recurrent Neural Networks (RNNs), with good metrics results but the longer training time, and finally Random Forest, Linear Regression and Stochastic Gradient. All ML and DL algorithms scored good performance metrics, indicating that they are feasible for implementation on smart traffic light controllers. © 2022 by the authors.
Author Keywords	artificial intelligence; deep-learning; intelligent transportation system; ITS; machine-learning; recurrent neural network; regression algorithms; smart city; traffic flow prediction; traffic light

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