AN INTEGER PROGRAMMING APPROACH FOR SINGLE TRUCK ROUTING-AND-SCHEDULING PROBLEMS TO ISLANDS WITH TIME-VARYING FERRY SCHEDULES
Author(s) -
Mohammad Thezar Afifudin,
Dian Pratiwi Sahar
Publication year - 2020
Publication title -
journal of industrial engineering management
Language(s) - English
Resource type - Journals
eISSN - 2541-3090
pISSN - 2503-1430
DOI - 10.33536/jiem.v5i2.548
Subject(s) - integer programming , truck , schedule , vehicle routing problem , scheduling (production processes) , branch and price , sequence (biology) , routing (electronic design automation) , mathematical optimization , computer science , linear programming , integer (computer science) , operations research , job shop scheduling , mathematics , engineering , computer network , biology , genetics , programming language , aerospace engineering , operating system
This study aims to develop a solving model for the single trucks routing-and-scheduling problems to islands with variations in ferry schedules. In this problem, the travel time is asymmetric and the truck routing is based on the sequence of island visits, known and unknown. The models are developed using an integer programming approach. Integer non-linear programming is formulated to solve problems where the sequence is unknown, whereas integer linear programming for the sequence is known. Besides, a delivery day scenario is built to determine the optimal route and schedule with minimum total travel time on each departure day. Numerical experiments were carried out on the case of a small distribution of a small industry in Central Moluccas, Indonesia. The results showed that the model developed could provide solutions to solve problems.
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