Train operation conflict detection for high-speed railways: a naïve Bayes approach. Issue 2 (4th March 2023)

• Record Type: Journal Article
• Authors: Li, Jie; Li, Zhongcan; Wen, Chao; Peng, Qiyuan; Huang, Ping
• Is Part Of: International journal of rail transportation. Volume 11:Issue 2(2023)
• Page Start: 188
• Page End: 206
• Publication Date: 2023-03-04
• Subjects: High-speed railways -- train operation data -- data imbalance -- conflict detection -- naïve Bayes; Railroads -- Periodicals; Railroads; Periodicals; 385
• DOI: 10.1080/23248378.2022.2071346
• Languages: English
• ISSNs: 2324-8378

Abstract

ABSTRACT: Accurately detecting train operation conflicts (TOC) has great significance for improving the emergency handling ability of dispatchers during interference. In this study, a conflict detection model for high-speed train operation is proposed, with the train operation data from Xiamen to Shenzhen high-speed railway. Firstly, a TOC detection model framework considering data imbalance is determined, based on Bernoulli naïve Bayes model. Then, the hyper-parameter of the proposed model is tuned with the training and validation dataset. Next, the performance result of the proposed model is compared to other three commonly used naïve Bayes models, namely the Gaussian naïve Bayes, multinomial naïve Bayes and complement naïve Bayes. Comparison analyses based on the commonly used classification model evaluation indexes show that the detection accuracy of the proposed model is significantly higher than other naïve Bayes models. The proposed model also achieves high robustness and detection accuracy in each category.