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We develop a single batching machine model that incorporates transportation before processing with job waiting time constraint. In this model, there are some vehicles with unit capacity that travel between the machine and the holding area, and the waiting time of each job before processing can not be greater than a given upper bound. The batching machine has a capacity limit and incurs a processing...
Due to the rapid increase in the number of vehicles traveling between Hong Kong and southern China, the corresponding increase in toxic gas emission would be hazardous to the respiratory system of human beings. Therefore, it is essential to create a kind of vehicle operation system to minimize the toxic gas emission level and at the same time increase energy consumption efficiency. In this paper,...
The multi-trip vehicle routing problem (MTVRP) is studied whose task is to determine both the multiple trips to satisfy all the customers' demands and the assignment of the trips to vehicles with the objective of minimizing the travel cost of the trips. For this problem, an algorithm based on filter-and-fan approach is proposed. Tabu search is adopted to initialize the procedure and provide useful...
At the present time, agricultural operations are mostly carried out with agricultural vehicles. To maximize the economic returns from agricultural production, the operating costs of the vehicles have to be minimized. This paper presents an integer linear programming formulation to improve the utilization of the agricultural vehicles during the crop harvesting process. Crops are harvested by combine...
The fleet size and mix vehicle routing problem (FSMVRP) consists of defining the type, the number of vehicles of each type, as well as the order in which to serve the customers with each vehicle when a company has to distribute goods to a set of customers geographically spread, with the objective of minimizing the total costs. In this paper, we study a real-life FSMVRP with time windows (FSMVRPTW)...
The ??distribution?? mode for material support is the trend of military logistics evolution, and scheduling of vehicle is crucial to achieve this target. The mathematical model for the vehicle scheduling problem of military material distribution was formulated, in which the minimization of the armies' waiting time was used as the objective, and an improved ant colony optimization algorithm was utilized...
This paper proposes a hybrid meta-heuristic, tabu threshold algorithm (TTA), to efficiently and effectively solve vehicle routing problem with time window constraints (VRPTW). TTA integrates tabu search (TS) and threshold accepting (TA). TS is one of the most popular generic heuristics in solving VRPTW in recent years, and TA is a combinatorial optimization meta-heuristic. The first objective is to...
Aiming at resolving the problems of how to route and schedule vehicles in logistics distribution, which has a characteristic of large scale vehicles scheduling question, a spatial decision support system (SDSS) architecture is designed to improve the efficiency and minimize transportation costs for the logistics distribution in this paper. A three-stage solution framework for large scale vehicle routing...
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