Nowadays, urban travel management concerns all developed countries. The issues that these countries are facing are mainly congestion and pollution. Indeed, as cities keep growing, the volume of social interactions increases. The challenge for every country is thus to reduce the total volume of interactions. This notably involves managing the flow of people in the city. Roughly, two parameters can be adjusted: the amount of exchanges and the impact that these exchanges have on the urban system. Assuming that it is almost impossible to permanently regress a system in a degraded mode, this study appears to be consistent with the second conception of solution to the problem. In order to improve urban travel management, one solution is to make public transport modes more attractive to encourage a modal shift from more practical but less eco and traffic friendly modes. In particular, it is a question of improving their adherence in the territory. Adherence is a notion that is observed at both scales micro and macro. Contrarily to planning by accessibility, it is a notion that takes into account service spatial continuity of a transport mode. As this notion of adherence in the field of mobility is not very widespread, this study returns to its definition to propose a panel of attributes which can influence it. These attributes are tested in the case of a bus line in Santiago de Chile and are confronted with the results of a survey led toward users of this line. The study has been conducted during the Chilean riots of 2019. The results highlight a significant influence of urban design as well as the pedestrian network.