This paper presents the results of stated-preference, discrete selection experiments designed to obtain quality indicators in the urban public transport service in the town of Barrancabermeja, which was raised to two alternatives that contain the attributes : fare, walking distance from origin to fate, waiting time at bus stop, travel time in vehicle, availability of seats, driver and vehicle, generating a Multinomial Logit model, which allows the city to complete study attributes most relevant to the quality of the service are: 32.6% rate, walking distance from the origin to the whereabouts 18.0% and 14.3% travel time.