Preface of the volume for the 19th Symposium on Algorithmic Approaches for Transportation Modelling, Optimization, and Systems (ATMOS 2019)

The 19th ATMOS symposium (ATMOS’19) was held in connection with ALGO’19and hosted by Technische Universität München in Munich, Germany, on September 12-13,2019. Topics of interest were all optimization problems for passenger and freight transport,including, but not limited to, demand forecasting, models for user behavior, design of pricing systems, infrastructure planning, multi-modal transport optimization, mobile applications for transport, congestion modelling and reduction, line planning, timetable generation, routing and platform assignment, vehicle scheduling, route planning, crew and duty scheduling,rostering, delay management, routing in road networks, and traffic guidance.