This paper follows an ongoing doctoral research, aimed at exploring the underlying relationship among the physical infrastructure of public transport users and the information generated for the use of the service, as well as the role that information design plays in the articulation of the relationship. The transformations that public transportation has undergone in Colombia in recent years with the based on BRT systems, and consequently, the replacement of the old collective systems, has led to a variety of situations, some positive in the sense of qualifications of the service and the reduction of pollution, according to studies by the Ministry of Environment-, but others with negative connotations, such as user dissatisfaction for the service. This study aims to examine the change of mass transit transportation system based on BRT called Western Mass Integrated Transport System or MIO, in Cali, Colombia, from the perspective of information design.