“…Similarly to VRP, WCRP has different variations based on the type of waste to be collected, for example, residential waste (usually produced in suburban areas), commercial waste (usually generated by restaurants, shopping malls, and other commercial establishments), and industrial waste (produced by construction sites, large shopping malls, or downtown areas; Golden et al, 2001). There are also variations in WCRP based on the type of constraints considered, such as WCRP with time windows (Campos and Arroyo, 2017; Sackmann et al, 2017), time-dependent WCRP (Mat et al, 2018b), WCRP with lunch-break and driver rest period constraint (Kim et al, 2006), WCRP with different fleet types (Hauge et al, 2014), and WCRP with a fixed dumpsite or with multiple dumpsites (Sackmann et al, 2017), in which, after giving service, the vehicle is not required to return to the depot from where it departed.…”