1. China Urban Rail Transit Association: Annual Statistics and Analysis Report of Urban Rail Transit. China Urban Rail Transit Association, Beijing 2021 (2020). (in Chinese)
2. White Paper on the Development of Capital Smart Subway (2020 Edition). (in Chinese)
3. Chai, N., Zhou, W., Hu, X.: Safety evaluation of urban rail transit operation considering uncertainty and risk preference: a case study in China. Transp. Policy 125 (2022)
4. China Urban Rail Transit Association: Outline of Smart Urban Rail Transit Development in China. China Urban Rail Transit Association, Beijing (2020). (in Chinese)
5. Liu, C., Cai, J.: Construction path and implementation method of smart metro. Urban Mass Transit 23(6), 5 (2020). (in Chinese)