Traffic jams on the AP-7 and C-31: the chaos that affects Tarragona and Barcelona

Mobility on the AP-7 and nearby roads is suffering a collapse that directly affects daily commutes. Traffic jams extend at key points and cause waits that no driver wants to experience in the middle of the workweek.

According to the Catalan Traffic Service, on May 4, 2026, there are considerable queues on different sections of the AP-7, the A-2, and the C-31, affecting both the province of Tarragona and the metropolitan areas of Barcelona.

The black spots on the AP-7 and their influence in Tarragona

Traffic jams in Parets and Barberà del Vallès

The AP-7 accumulates traffic jams at Parets del Vallès and Barberà del Vallès heading towards Barcelona and Tarragona respectively. The jams in Barberà especially affect traffic towards Tarragona. This situation generates a collapse that can extend for kilometers and delay rush hours.

Direct impact on local mobility

The problems on the AP-7 not only affect long-distance travelers but also condition local traffic, especially at the entrances and exits of Tarragona. Many drivers are forced to look for alternative routes, which often only worsen the chaos.

Chaos on access roads to Barcelona: C-31, B-23 and C-58

Traffic jams on the C-31 and B-23

The C-31 in L'Hospitalet de Llobregat records queues heading towards Barcelona, one of the most saturated points. Meanwhile, the B-23 also accumulates traffic jams in Sant Feliu and Esplugues de Llobregat, affecting the connection with the Diagonal, a vital axis for urban commutes.

Breakdown on the C-58 and consequences

A breakdown on the C-58 causes jams in Montcada and Sabadell, with repercussions extending to the rings of Barcelona. This isolated incident worsens traffic problems in an already very tense area.

Other impacts and general traffic context

Traffic jams on the A-2 and C-17

The A-2 shows queues in Sant Vicenç dels Horts and Cornellà heading towards Barcelona. The C-17 in Mollet also accumulates traffic jams, which further complicates mobility in the metropolitan area.

Context of the traffic jams and traffic management

The combination of incidents, breakdowns, and usual traffic peaks generates a domino effect that penalizes drivers on all these roads. The Catalan Traffic Service maintains updated information to try to minimize the impact, but the alternatives are limited.

If you have ever suffered a traffic jam of this magnitude, you already know how frustrating it can be.

Source of the article: Catalan Traffic Service