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Aug 12, 2020
Prediction of Vehicle Instantaneous Speed in the Car-Following Based on Machine Learning Approaches
Authors: Shuaiyang Jiao [email protected], Shengrui Zhang [email protected], Zixuan Zhang [email protected], Dan Zhao [email protected], and Bei Zhou [email protected]Author Affiliations
Publication: CICTP 2020
ABSTRACT
The instantaneous speed prediction plays a crucial role in autonomous driving, which directly affects the safety of the autonomous vehicle. It is necessary to study instantaneous speed prediction approaches in the car-following. In this study, different machine learning approaches are used to predict the instantaneous speed in the car-following (i.e., support vector regression, random forest, and XGBoost and AdaBoost regression models). And then different model evaluation criteria are selected to assess the model’s prediction power, including mean absolute error, mean absolute percentage error, root mean square error, and variance of absolute percentage error. The denoising trajectory data of the next generation simulation (NGSIM) project is used, and the grey relational analysis is used to extract the feature variables. The results indicate that XGBoost model can effectively improve the accuracy of instantaneous speed prediction in the car-following.
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© 2020 American Society of Civil Engineers.
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Published online: Aug 12, 2020
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1School of Highway, Chang’an Univ., P.O. Box 710064, Xi’an, China. Email: [email protected]
2School of Highway, Chang’an Univ., P.O. Box 710064, Xi’an, China. Email: [email protected]
3School of Highway, Chang’an Univ., P.O. Box 710064, Xi’an, China. Email: [email protected]
4School of Highway, Chang’an Univ., P.O. Box 710064, Xi’an, China; Infrastructure Dept., Northwest Univ., P.O. Box 710069, Xi’an, China. Email: [email protected]
5School of Highway, Chang’an Univ., P.O. Box 710064, Xi’an, China. Email: [email protected]
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