ITxPT and broker architectures

Public transport IT is being asked to exchange more data, between more actors, more securely, and in near real time — without locking anyone. Broker-based architectures are one answer, but they come with trade-offs worth discussing openly.

Why choose a broker-architecture in a public transport context? For which benefits – decoupling, asynchrony, scalability, interoperability? And what are the points of attention – complexity, real-time constraints, reliability, governance?

On 1 April 2026, ITxPT started the staged release of the S04-MQTT broker-based specifications . They define a common, secure and future-proof framework for exchanging data both within vehicles and between vehicles and back-office systems — from journey monitoring and vehicle location to passenger counting and ticketing.

Join us for an open 20-25 minute conversation on where a broker-based approach makes sense, where it doesn’t, and how ITxPT can help you strike the right balance.