Crawdad Project: Dataset from the CRAWDAD Project, that has low-sampled GPS trajectories (in average one point recorded each 61.8s) of 536 taxi drivers collected in May 2008 in San Francisco, USA. Originally, the CRAWDAD dataset contained one trajectory per driver with duration of several days, what is not useful to determine similar movements around the town. For that reason, we applied two transformations to the dataset: i) trajectories were split each time the occupation status of the taxi changed; and ii) trajectories were split when a gap of 5 minutes between two consecutive points was found. As a result, the original 536 trajectories of the dataset were transformed in more than 1 million trajectories representing several taxi trips between different locations in San Francisco, USA.