%0 Journal Article %T Preface: Special issue on heavy haul %A Anna Orlova %A Hannes Gr£¿be %A Michael Roney %A Robert Fr£¿hling %A Roger Lund¨¦n %J Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit %@ 2041-3017 %D 2019 %R 10.1177/0954409718821263 %U https://journals.sagepub.com/doi/full/10.1177/0954409718821263