A MILP model and memetic algorithm for the Hub Location and Routing problem with distinct collection and delivery tours

Improving the Operational Efficiency of Parcel Delivery Network with a Bi-Level Decision Making Model

“…A number of studies in the literature show the importance of integrating terminal management with fleet assignment problems since those elements can be mutually effective [7,10,14,15,18,31,33,34]. Terminal size and location problems with minimized transport costs or greenhouse gas emissions are one such example.…”

“…Improvements in communication and information technologies have driven the functional integration of various logistic operations, which contributes to cost reductions and service quality enhancements [4,9,10]. In [14], model integrating hub locations are designed with fleet assignment problems, which also incorporates a single allocation of shipments to capacitated hub locations. In [12], the holding costs of hub terminals are also included in the optimization of shipment scheduling decisions, the hub locations, and network structure.…”

“…In [12], the holding costs of hub terminals are also included in the optimization of shipment scheduling decisions, the hub locations, and network structure. The authors of [14,15] designed a decision-making model for network organization and vehicle operations by using mathematical programming.…”

Ambulance location under temporal variation in demand using a mixed coded memetic algorithm

“…Therefore, we adopt a mixed coded solution representation in the proposed algorithm to combine binary coding for station location and real coding for demand allocation decisions. However, mixed coding using a combination of binary and integer representation has been used in MA for location routing problems [26,71].…”

Hybrid evolutionary algorithms and Lagrangian relaxation for multi-period star hub median problem considering financial and service quality issues

“…Thereafter, many of researchers developed numerous hub location models and various methods for solving them. For example, we refer to Najy and Diabat (2020), Ghaffarinasab and Kara (2019) and Yang et al (2019). To sum up the trends of researches on HLPs in the last three decades, the studies in the late 1980s focused on modeling frameworks, in the 1990s on both modeling and optimizing, and eventually in recent years on advanced formulations and method solutions.…”