Predicting Bus Travel Time with Hybrid Incomplete Data – A Deep Learning Approach

  • Ruisen Jiang School of Transportation Engineering, Chang'an University
  • Dawei Hu School of Transportation Engineering, Chang'an University
  • Steven I-Jy Chien School of Transportation Engineering, Chang’an University
  • Qian Sun School of Transportation Engineering, Chang'an University,
  • Xue Wu School of Transportation Engineering, Chang'an University
Keywords: bus travel time prediction, GPS data, electronic smart card data, long short-term memory model, genetic algorithm

Abstract

The application of predicting bus travel time with re-al-time information, including Global Positioning System (GPS) and Electronic Smart Card (ESC) data is effec-tive to advance the level of service by reducing wait time and improving schedule adherence. However, missing information in the data stream is inevitable for various reasons, which may seriously affect prediction accuracy. To address this problem, this research proposes a Long Short-Term Memory (LSTM) model to predict bus travel time, considering incomplete data. To improve the model performance in terms of accuracy and efficiency, a Genet-ic Algorithm (GA) is developed and applied to optimise hyperparameters of the LSTM model. The model perfor-mance is assessed by simulation and real-world data. The results suggest that the proposed approach with hybrid data outperforms the approaches with ESC and GPS data individually. With GA, the proposed model outperforms the traditional one in terms of lower Root Mean Square Error (RMSE). The prediction accuracy with various com-binations of ESC and GPS data is assessed. The results can serve as a guideline for transit agencies to deploy GPS devices in a bus fleet considering the market penetration of ESC.

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Published
2022-09-30
How to Cite
1.
Jiang R, Hu D, Chien SI-J, Sun Q, Wu X. Predicting Bus Travel Time with Hybrid Incomplete Data – A Deep Learning Approach . Promet [Internet]. 2022Sep.30 [cited 2022Dec.2];34(5):673-85. Available from: https://traffic.fpz.hr/index.php/PROMTT/article/view/4052
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