“…The paper by Archetti, Savelsbergh, and Speranza (2008) is a good source for recent developments in modeling and solving the VRPSD. Recently, several variants of the traditional VRPSD have been explored in the literature including the vehicle routing problem with discrete split deliveries and time windows (Matteo & Ilaria, 2011), the heterogeneous fleet vehicle routing problem with time windows and split deliveries (Patrícia & Hugo, 2013), the multi-depot split delivery vehicle routing problem (Damon, Bruce, & Edward, 2011), and the crude oil transportation with split deliveries (Nishi & Izuno, 2014). In addition, two exact branch-and-cut algorithms for the VRPSD based on two relaxed formulations that provide lower bounds to the optimum were presented by Archetti, Bianchessi, and Speranza (2014).…”