The 5 secondary schools in the Seine-et-Marne Department are public buildings, spread over different levels varying from one establishment to another. Welcoming many secondary school students every day, these establishments must meet new regulatory requirements in terms of accessibility for people with all disabilities. So that each trip is simple and without constrains for everyone. In this context, it was necessary to bring the sanitary facilities, stairs, access ramps, elevators and appropriate signage up to standard, as well as the creation of secure fire-resistant waiting areas, in order to protect users in wheelchairs in case of fire.