JIMENEZ NARVAEZ, Marvin Luis    SOTO MEJIA, José A.. ESTIMATING AN ORIGIN-DESTINATION MATRIX USING SMART CARDS. AN APPLICATION TO THE MEGABÚS TRANSPORT SYSTEM IN PEREIRA. []. , 26, 2, pp.73-93. ISSN 0124-8170.  https://doi.org/10.18359/rcin.1661.

In the operational planning of transport systems, it is essential to have a characterization of the demand for the service by means of an Origin-Destination (OD) Matrix of travels. This matrix is frequently estimated using statistical sampling techniques, which offer high-quality results but require complex design and high cost. It is therefore appropriate to take advantage of the information that is generated from the records of the smart cards used as means of payment in the systems that provide this technology. This source of information allows for obtaining estimates of high-quality Origin-Destination (OD) matrix with a low cost. In this work, it is implemented a methodology for the estimation of an Origin-Destination (OD) matrix between bus stations in the public transport system of MEGABÚS in the city of Pereira. The methodology allows for a debugging in the database taking into account the peculiarities of the system as the forms of income, type of card, and resale of tickets. In addition, it considers the possibility that a user can decide to step down at an intermediate station close to his destination station using the parameterization of a penalty factor that is associated with the walking-travel time in the objective function. The inclusion of the factor does not significantly influence the total percentage of estimated travels. Nevertheless, it recalculates some values of the Origin-Destination (OD) Matrix considering the alight in intermediate stations. The proposed method makes possible to estimate OD matrices for different time windows for any day of the week and different times of the year.

: origin-destination matrix; smart card; public transport system; Megabús.

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