This paper describes an innovative broadband (WiFi) communications manager designed to manage "train-toearth" communications. This communications manager aims to deal with applications communication needs and make decisions about what applications can communicate in each moment taking into account broadband features, application priorities and train connection states. Currently, as part of the architecture's validation, new digital services in the field of railways have been developed and they are being implanted, and some others are being scheduled to be developed.
Traditionally Rail Traffic Management is performed automatically using centralized systems based on wired sensors and electronic elements fixed on the tracks. These systems, called Centralized Traffic Control systems (CTC) are robust and high availability, but when these systems fail, traffic management must be done manually. This paper is the result of 4 years of work with railway companies in the development of a distributed support tool for rail traffic control and management. The new system developed combines trainside systems and terrestrial applications that exchange information via a hybrid mobile and radio wireless communications architecture.
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