Characteristics of the spatial dynamics in bike-sharing systems.

The number N denotes the active stations considered in the definition of the OD matrix. The total number of displacements is presented as well as the fraction of trips with distances d classified in different intervals. The values a, b and α for the best fit are obtained by the formalism developed in the Methods section. In addition, the value R = 10b (Km) defines a local neighborhood around each station. Beyond this characteristic distance, the displacements are well described by long-range transitions with a Lévy-like dynamics that follows the relation .