Modelling railway delay propagation as diffusion-like spreading Mark M. Dekker, Alexey N. Medvedev, Jan Rombouts, Grzegorz Siudem and Liubov Tupikina EPJ Data Sci., 11 1 (2022) 44 Published online: 30 July 2022 DOI: 10.1140/epjds/s13688-022-00359-1