This article aims to provide an overview of railway signalling trends in Australia. It is important to understand that Australia is not just a country but a whole continent with a great variety of railway systems much less coherent than those in Europe. Accordingly, there is a wide range of different signalling and train control systems in Australia. One could even see it as an almost unparalleled showcase of modern signalling and train control variety, and you may well agree with that view after reading this article.
interoperability
[Guest article by Artur Wolnica] Interoperability challenges in the diversity of the European network
Uniqueness of the European signaling systems
Traveling between European countries reveals the diversity and uniqueness of each country, including their railway systems.
Europe is one of the most diverse areas when it comes to signaling systems. With more than 20 national systems in place, the entire network is composed of different subsystems developed under different paradigms, specifications, and functions. Even though modern signaling systems like the European Train Control System (ETCS) are being incrementally deployed, the combination of various infrastructures poses a real challenge to integrate the systems into one unified network.
Remember to read the article on Serbian railway signaling