SIMOUV wishes to renew its Operator and Information Assistance System (SAEIV) for the operation of the “Transvilles” network, starting in 2022 for the first phase in October 2023. To this end, it provides, inter alia, for: — The complete renewal of the current SAEIV (software, servers, operator stations, interfaces, etc.); — The supply and installation of SAEIV and radio equipment for all trams (30 trains, railway standards), and service vehicles (15 vehicles); — The implementation of modern and standardised technical interfaces (NETEX, GTFS, GTFS-RT, SIRI), to enable in particular the dissemination of reliable, complete and enriched information to travellers, stations, relay car parks, trade hubs and commercial agency; — The upgrade of the TETRA proprietary central equipment (the core infrastructure and antennas will be maintained but the following developments will be implemented: redundancy and virtualisation of servers, reliability of cross-site links) and implementation of redundancy through the 4G network.