The railway tech blog

Railway Automation

Start with the basic concepts: grades of automation, train protection and automatic train operation.

Railway grades of automation

Railway grades of automation

There are 4 levels of railway automation: from manual driving supervised by an automatic train protection system, to fully automated and unattended operation. To distinguish the levels of automation, one possible definition is the Grade of Automation (GoA) from 1 to...

Automatic Train Protection

Automatic Train Protection

Railway operations present 5 types of danger: derailment, head-on collision, rear-end collision, side swipe and collision with an obstacle. Because humans can make mistakes, operators have introduced systems to limit some of these risks: these are Automatic Train...

Automatic Train Operation

Automatic Train Operation

Automatic Train Operation is a function that controls the traction and brake of the train, respecting the signalling and following the timetable for the mission to be executed, while controlling the train in the best possible way, thanks to the knowledge of the...

ERTMS

Understand the European interoperability layer: ERTMS, ETCS, capacity, ERTMS/ATO and migration.

ERTMS: The European Rail Traffic Management System

ERTMS: The European Rail Traffic Management System

ERTMS started as Europe’s answer to fragmented national train protection systems. Today, it should be understood more broadly: as the digital backbone of the Single European Railway Area. It enables interoperable train control, prepares the migration from GSM-R to...

ERTMS/ETCS: The European Train Control System

ERTMS/ETCS: The European Train Control System

ERTMS/ETCS is the European Train Control System. Its role is not to drive the train, but to supervise whether the train is authorised to move, at which speed, and up to which point. It provides cab signalling, movement supervision and intervention when the train would...

ETCS Capacity: From Fixed Blocks to Moving Block

ETCS Capacity: From Fixed Blocks to Moving Block

Railway capacity is often presented as a signalling problem: reduce block lengths, introduce ETCS Level 2, then move towards Hybrid Train Detection or Moving Block. But capacity is not created by signalling alone. It emerges from the way train detection, train...

ERTMS/ATO: Europe’s Interoperable Train Autopilot

ERTMS/ATO: Europe’s Interoperable Train Autopilot

ERTMS/ATO is often introduced as the European interoperable train autopilot. This is true, but it is only part of the story. ERTMS/ATO is not simply a system that drives the train automatically; it is the first standardised automation layer designed to operate inside...

Migration to ERTMS/ATO: Lineside Signalling Interpretation

Migration to ERTMS/ATO: Lineside Signalling Interpretation

ERTMS/ATO is Europe’s interoperable solution for automatic train operation, but it depends on ERTMS/ETCS to provide the train protection and signalling information required by ATO. This creates a migration issue: many lines are still operated with national signalling...

DATO

Explore the transition from automatic driving to digital, automated and autonomous railway operation.

Railway Automation: From Automatic Driving to Autonomous Operation

Railway Automation: From Automatic Driving to Autonomous Operation

Railway automation is often described as a progression from automatic driving to autonomous trains. This is true, but incomplete. The move from GoA2 to GoA4 is not only an increase in automation level; it is a transfer of operational responsibilities from the driver...