The Yellow Line will be the second line of the Lisbon Metro to be accessible to all people, after the Red Line, which was originally provided with full accessibility.

Picoas e Campo Pequenoon the Yellow Line, and Campo Grandeon the Green and Yellow Lines, may be the next Lisbon Metro stations to gain full accessibility. The company concluded two prior consultations in order to elaborate the accessibility projects for these three stations, in the global value of about 100 thousand Euros.
Once the projects are ready, public tenders can be launched to allow the execution of the work to provide the stations in question with elevators and other equipment to ensure access for all people.
The Lisbon Metro currently has 43 of its 56 stations accessiblethat is, where there are elevators between each of the platforms and the station atrium and between this and the outside, allowing a person in a wheelchair, someone with a baby stroller or even a passenger with a bicycle to enter and exit the Metro without barriers. The accessible stations correspond, at this moment, to 76.8% of all the stations in the network.
Metro's goal is to have 54 stations with full accessibility (barrier-free) by 2025This number already includes the two future stations in the network - Estrela and Santos. Therefore, besides Picoas, Campo Pequeno and Campo Grande, Metro de Lisboa is planning to work on the following eight stations: Intendente, Anjos and Martim Moniz, on the Green Line; e Alto dos Moinhos, Laranjeiras, Jardim Zoológico, Praça de Espanha and Avenida, on the Blue Line. The Baixa-Chiado (Green and Blue Lines) and Parque (Blue Line) stations, due to their depth and consequent complexity, should be the last to gain full accessibility.
These are all older stations, which were not originally designed with accessibility in mind for all people, including those with mobility impairments. With the adaptation of Picoas, Campo Pequeno and Campo Grande, the Yellow Line will become the second line of the Lisbon Metro to be accessible to all people, after the Red Line, which was already designed with the right of all people to public transport in mind. In 2022, the intervention in the stations of Between Fields e University Cityon the Yellow Line, which are now equipped with elevators.
Each project to provide a station with full accessibility costs about 1.6 million Euros - including project design, contracting, and site supervision, according to Metro de Lisboa. The intervention in the Park is expected to be the most expensive, costing more than 10 million euros.