The public transport attempts to provide a service to every citizen on the same level of approachability. Even when the budget allows investments to upgrade the transport facilities accessibility, it would be necessary to deal with the time and transport organization. The research problem that has been treated here is the variant of the possible models applicable to the transport of persons with disabilities on the existing transport network by providing independence in their displacement. The literature recognizes several optimization models that could assist in delivering better transport services to persons with disabilities, such as transport on demand (also knows as dial-a-ride model), and another category is the model that proposes the shortest path on the network. In this paper, the conditions of the public transport network in Valenciennes (France) are analyzed within the transport flows and explained the best fitting with the optimization and location models.