The CASPT has taken a long way from being an acronym for different conferences and workshops including Computer-Aided Systems in Public Transport up to being used for the International Conference on Advanced Systems in Public Transport. The first workshop of this series was held in Chicago in 1975 without actually having systems implemented and consistently used in practice, but it was envisaged. This changed by 1980, in Leeds, and 1983, in Montreal. The foundation started on the interface between operations research and information systems with a special focus on both heuristics and mathematical programming techniques, now known under the acronym of matheuristics once intertwined.
Previous editions of these conferences were held all around the globe and are well documented, e.g., in Wren (1981), Rousseau (1985), Daduna and Wren (1988), Desrochers and Rousseau (1992), Daduna et al. (1995), Wilson (1999), Voß and Daduna (2001), Hickman et al. (2008). Ever since the inauguration of the journal Public Transport: Planning and Operations, we have had special issues devoted to this conference; see the following editorials: Lo et al. (2010), Muñoz (2013), Schmidt and Voß (2017). The last edition of this conference was held in Brisbane, Australia, in July 2018, as indicated in Trépanier and Hickman (2021). Under the current Corona conditions the next one is supposed to be held in Tel Aviv, Israel, in October/November 2022.