Figure 4

Network construction example. (Left) Trajectories \(u_{1}\) and \(u_{2}\) depart from tract \(t_{1}\); \(u_{1}\) starts at \(u^{h}_{1}\), and moves through \(u^{o1}_{1}\) and \(u^{o2}_{1}\), the latter being exposed to park \(p_{1}\); \(u_{2}\) starts at home \(u^{h}_{2}\), and moves through \(\{u^{oi}_{2}\}^{4}_{i=1}\), with \(u^{o2}_{2}\) being exposed to all the parks and \(u^{o4}_{2}\) only to \(p_{3}\). (Right) Resulting network with \(t_{1}\) as tract node and \(\{p_{i}\} ^{3}_{i=1}\) as park nodes. The weight of the links represents the number of other type locations exposed to each park