Development of a structural strengthening and repair design for the atrium slab of Odivelas Station on the Yellow Line of the Lisbon Metro, near the technical area (Upper Atrium – technical zones with restricted public access; Boarding Platform; Under-Platform Level and Lower Atrium), with the station remaining in operation throughout. Odivelas Station is located in a densely occupied urban area. The design phase took place between 2015 and 2017, and construction was carried out in 2018.