摘要:The paradigm of bus rapid transit as a mean of public transportation has been studied from different perspectives by renowned international researchers and, although there is a consensus in its implementation because of the operational institutional traditional structures toward a public-private participation scheme,there is few specialized literature that analyzes these institutional aspects: the actors involved, the new system organization and the legal norms of the new transport system. This research through study cases is aimed to compare institutional aspects between the Leon Guanajuato’s Optibus, the Mexico’s City Metrobus and the State’s of Mexico Mexibus, which represents the bus rapid transit systems implementation, in order to identify in each of them the actors involved, their stockholders and contractual options, the organization and the legal framework that provides certainty to the systems’ institutional scheme.