Metropolitan Regional Express Service (Serm) Archives - International Railway Journal

Metropolitan Regional Express Service (Serm)

July 17, 2026 | Europe

Longer platforms for Bordeaux Serm

Station upgrades will allow operation of trains in multiple to expand capacity.

February 18, 2026 | Infrastructure

French transport bill provides additional infrastructure funding

An additional €1.5bn a year will be provided for SNCF Network.

February 9, 2026 | Commuter Rail

France’s first regional metropolitan express network takes shape

Centre-Val de Loire region presents plans to increase service frequencies on lines serving Tours, as David Haydock reports.

November 21, 2025 | Fleet

French region orders more bi-mode trains from CAF

Grand Est has ordered new fleet to replace locomotive-hauled coaches.

June 21, 2024 | Main line

Pays de la Loire invests as TER regional traffic booms

Traffic up on pre-pandemic levels at 10 of France’s 13 regions.

May 3, 2024 | Analysis

RER-style networks for French cities

Over 30 projects are under development to create cross-city lines and bring more frequent suburban services to cities in the French regions. David Haydock reports on the Regional Metropolitan Express Service (Serm) concept.

January 8, 2024 | Main line

Grand Est region signs new TER contract with SNCF

Regional network to be opened up to competition.

December 20, 2023 | Commuter Rail

French parliament approves regional RER projects

New concept to improve urban rail networks in French cities has been given the green light.

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