Abstract
The following is a working paper whose main objective of this work is to demonstrate the incidence in the cost of the families in relation to the public transport in the localities of Usme and Ciudad Bolívar of Bogotá since an analytical perspective descriptive way by means of the use of a econometric model that allows to determine it us and to verify it. In order to accomplish the objective, it was designed and implemented an instrument of data collecting based on 619 surveys conducted directly to the homes that use the collective service of public transport in the places of Usme and Ciudad Bolívar to move to their places of work and/or study, or to fulfill activities of its familiar nucleus. The work is sustained in addition, in the development of an historical brief of the use of transport in Bogotá,taking as base a model of consumption of the families and the ultimate tendencies found in the study of the economy of the transport, doing emphasis, as regards the collective public transport of passengers. By such reason, is in the development of the work the different contributions from specialists in the subject of the transport that has taken an excellent importance in the economic development and search from well-being of the families.