An infrastructure incident between El Clot and Arc de Triomf stations in Barcelona is causing significant disruptions to Rodalies train lines R1, R2 sud, and R4, according to Renfe. The incident, which occurred on Sunday, 17 May 2026, has led to service reductions and diversions across the city's rail network.

For the R1 line, trains heading towards L'Hospitalet de Llobregat are being diverted via Passeig de Gràcia. These services are not stopping at Plaça de Catalunya or Arc de Triomf stations. The frequency of R1 trains has been cut to two per hour in each direction.

R2 Sud and R4 Lines Affected

The R2 sud line is also experiencing a reduced service, with only two trains operating per hour in each direction. Meanwhile, R4 trains travelling towards Sant Vicenç de Calders are also diverted through Passeig de Gràcia. These R4 services are bypassing Torre Baró, Fabra i Puig, Sagrera, Arc de Triomf, and Plaça Catalunya stations.

Renfe officials said a shuttle train service has been set up between Terrassa and Fabra i Puig to help passengers. Additionally, trains operating between Vilafranca and Manresa are now starting and ending their journeys at L'Hospitalet de Llobregat station, altering their usual routes.

Passengers are advised to check real-time updates from Renfe for the latest information on service changes and expected delays.