Single European Railway Area (SERA)
The Single European Railway Area (SERA) is the EU’s project to merge Europe’s national railway systems into one integrated market, with open access to infrastructure, independent regulation and common technical rules. Its legal foundation is Directive 2012/34/EU of 21 November 2012, known as the recast directive.
The Single European Railway Area responds to a structural problem: railways developed as closed national systems with their own operators, rules and technical standards, which made cross-border rail traffic slow and expensive compared with road. SERA replaces that patchwork with a single legal framework for market access across the EU.
The recast directive consolidated the first railway package and set the market’s ground rules: separation of infrastructure management from train operations, non-discriminatory access and charging, and an independent regulatory body in every Member State.
Built in stages
Market opening arrived sector by sector. Rail freight has been open to competition across the EU since 2007, and international passenger services followed in January 2010 under the 3rd Railway Package.
The final step came with the market pillar of the 4th Railway Package, which opened domestic passenger services to open-access competition from the December 2020 timetable change and tightened the governance of infrastructure managers. Four legislative packages between 2001 and 2016 thus built SERA layer by layer.
SERA is the regulatory counterpart to the EU’s infrastructure planning: the Trans-European Transport Network (TEN-T) determines where the lines are built and to what standard, while SERA determines who may run trains on them and on what terms.