Operational rules,
made simple.
I help infrastructure managers and rail programmes design operational rules, scenarios and digital rulebooks for ETCS Level 2 without lineside signals.
Currently: Design Lead, Operational Design · Europe’s Rail System Pillar
Post Movement develops simple, harmonised operational rules for ETCS Level 2 without lineside signals. European instead of national. Delivered to the signaller and the driver digitally: process-oriented, written in the imperative, usable in seconds. Like a modern app, not a 200-page legal text.
01Operational rulebooksETCS L2 / L2oS
Operational rules and processes for ETCS Level 2 without lineside signals, including ETCS modes and degraded situations. Process-oriented, written in the imperative, each rule with its reason.
02Operational designConcepts · Scenarios
Operational concepts and scenarios that become the basis for a technical strategy: movements, restrictions, emergency management. Operations first, technology second.
03HarmonisationTSI OPE · TSI CCS
Comparison of European rulebooks, then one harmonised result. Independent of any national or company line: the best solution in Europe wins.
04Digital rulebooksRequirements · Product
Rules that reach the end user digitally. Requirements engineering and product ownership at the interface between operational experts and IT and industry.
05WorkshopsModeration · Serious gaming
Moderation and consensus-building across countries and companies, in English, with international expert teams. Including serious gaming: testing rules on a model railway. More in the Lab section.
Operational Design for the European railway.
Consulting for the ERTMS Users Group within the Europe’s Rail System Pillar. The aim: results that become a binding European standard through the TSI.
- ClientERTMS Users Group (EUG)
- ProgrammeEurope’s Rail Joint Undertaking, System Pillar
- Work packageOperational Design
- RoleDesign Lead in the Core Concept Team
- DeliverablesOperational Design Rulebook, Operational Scenarios
- TopicsMovements, restrictions, emergency management
SimpleEuropeanImplementable
- 01Simplicity is a safety feature.
- 02Harmonised operating modes instead of national special rules.
- 03Simplify the rules before building new technology.
- 04Every rule comes with its reason. Safety is never traded for simplicity.
- 05Implementable within the next few years. No over-engineering for the last 1 %.
- 06Evidence over authority. Every statement has a traceable basis.
What changed this week in ETCS Level 2 without signals.
The ETCS L2oS Weekly: rulebook updates, projects and lines across Europe, every source linked. With Sebastian’s take on what it means for operations.
The first issue is in preparation.
Overview Where is Level 2 without signals in operation, under construction or planned? L2oS lines in EuropeTesting rules on an H0 model railway.
In full-day workshops, operational scenarios and the rulebook are tested on an H0 model railway. Hands-on, the format also shows how simple the digital solution is. Started at DB InfraGO.
Automated test environment. An automated test environment for operational rules will be published here.
Sebastian Post
I translate between operational experts (signallers, drivers, trainers) and the world of IT and industry. As an independent consultant I am not bound to any national or company line.
Before founding Post Movement I spent four years at DB InfraGO, as Product Owner of the application for digital rulebooks and as co-developer of the new digital Ril 400, the German operating rulebook.
Rulebooks compared so far include those of DB, Banedanmark, ProRail, SBB, Bane NOR, Network Rail and ÖBB.
- 2025 –Post MovementFounder & Railway Operations Consultant
- 2021 – 2025DB InfraGOProduct Owner digital rulebooks, Ril 400, European harmonisation, workshop lead
- BeforeFraunhofer · BMW · MAN Energy SolutionsEarlier positions
- EducationUniversity of AugsburgIndustrial Engineering, B.Sc. and M.Sc.