Improvement of the analysis methods of the working hours` distribution of locomotive crews by the types of train operation in freight trafficDmytro Kozachenko, Mykola Berezovyi, Vyacheslav Malashkin, Tetiana Bolvanovska and Yurii GrimakMATEC Web Conf., 294 (2019) 04011DOI: https://doi.org/10.1051/matecconf/201929404011