The local system decomposes several subnet class units which consist of one or more nodes.
Chunmei Wu, Guilin Li, Shaowei Wang, Xueyan Lan 2017, 'The Research on WLAN Technology of Chain Network Based on Monitoring Information Transmissionof Catenary', MATEC Web of Conferenceshttps://doi.org/10.1051/matecconf/201712801004. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Then we design the train tracking subnet model, the station subnet model and arrival-departure track subnet model.
Xuelei Meng, Limin Jia, Wanli Xiang 2018, 'A Petri Net Model of Train Operation Simulation for Harmonizing Train Timetables ofNeighbor Dispatching Sections', Promet (Zagreb)https://traffic.fpz.hr/index.php/PROMTT/article/view/2713. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)