Railway emergency plan modeling based on Petri net. Issue 3 (26th August 2021)

• Record Type: Journal Article
• Authors: Ji, Yuqing; Ou, Dongxiu; Zhang, Lei; Tang, Chenkai; Phichitthanaset, Visarut
• Is Part Of: Smart and resilient transportation. Volume 3:Issue 3(2022)
• Page Start: 235
• Page End: 248
• Publication Date: 2021-08-26
• Subjects: Railway emergency plan -- Modeling -- Hierarchical timed Petri net -- EMUs rescue; 629.04
• DOI: 10.1108/SRT-01-2021-0001
• Languages: English
• ISSNs: 2632-0487

Abstract

Abstract : Purpose: When a railway emergency occurs, it often leads to unexpected consequences, especially for trains of higher speed and larger passenger flow. Therefore, the railway emergency plan, a pre-established plan to deal with emergencies, plays an important role in reducing injuries and losses. However, the existing railway emergency plans remain as plain-text documents, requiring lots of manual work to capture the important regulations. This paper aims to propose a visualized, formal and digital railway emergency plan modeling method based on hierarchical timed Petri net (HTPN), which is also of better interpretability. Design/methodology/approach: First, the general railway emergency plan was analyzed. Second, the HTPN-based framework model for the general railway emergency plan was proposed. Then, the instantiated model of electric multiple units rescue emergency plan was built by ExSpect, a Petri net simulation tool. Findings: The experiments show that the proposed model is more digital and of better readability, visualization and performability, and, meanwhile, can generally conform to the practice well, offering a promising reference for future analysis of the optimization of railway emergency plans. Originality/value: This study offers a promising reference for future analysis of the optimization of railway emergency plans.