This Sunday, in our report, we focus on the main works being carried out on the Cercanías commuter rail network. We also examine the locations where the most disruptions have occurred. These locations don't always coincide, which calls into question the arguments used to justify train delays and cancellations. Our journalists have diligently gathered this information because, as with on-site service, details about the network's operation and problem areas are not easily obtained from the company.