The 5 Ile-de-France high schools in the East sector are ERP spread over several levels varying according to the establishment. Welcoming many high school and / or college students every day, these establishments must meet new regulatory requirements in terms of accessibility for people with disabilities. So that each trip is simple and unconstrained for everyone. In this context, it was necessary to bring sanitary facilities, stairs and elevators up to standard, as well as the creation of secure waiting areas.