Design of Water Fire Extinguishing System for Protection of Metro Rolling Stock Stagnation ZonesIlya Filippov, Vladimir Yusupdzhanov, Olga Zybina, Ilya Klochihin and Ekaterina ChalovskayaEPJ Web Conf., 248 (2021) 02006DOI: https://doi.org/10.1051/epjconf/202124802006