17th International Logistics and Supply Chain Congress, İstanbul, Türkiye, 17 - 18 Ekim 2019, ss.1-2
City
logistics focuses on optimizing logistics and transport activities in urban
areas while considering traffic congestion, environment and energy consumption.
With the increase in urban population, the efficiency and effectiveness of the
freight deliveries in city areas are becoming more critical. Although all
stakeholders share common objectives of transporting goods in the urban area,
each stakeholder can have different priorities considering their conditions.
This paper is aimed to treat city logistics modeling for Istanbul by using
multi-objective linear programming that considers the different objectives of
the stakeholders by integrating goal programming and fuzzy Choquet Integral
approaches, in a multi-level supply chain for the automotive industry. The
objective functions are minimization of total transportation costs, total
inventory holding costs, penalty costs for delayed products and emission level
in urban area. It is solved by goal programming, and also fuzzy Choquet
Integral method is embedded for the third objective function. The application
of the model is realized on city logistics for a company in the automotive
industry. This proposed model makes selection decisions among the fuel vehicles
and electric vehicles in urban freight transport and also calculates the amount
of the products that have to be transported between facilities, the amount of
the delayed products and the inventory level for main warehouses in each time
period. Finally, the results are discussed under different scenarios.
City
logistics focuses on optimizing logistics and transport activities in urban
areas while considering traffic congestion, environment and energy consumption.
With the increase in urban population, the efficiency and effectiveness of the
freight deliveries in city areas are becoming more critical. Although all
stakeholders share common objectives of transporting goods in the urban area,
each stakeholder can have different priorities considering their conditions.
This paper is aimed to treat city logistics modeling for Istanbul by using
multi-objective linear programming that considers the different objectives of
the stakeholders by integrating goal programming and fuzzy Choquet Integral
approaches, in a multi-level supply chain for the automotive industry. The
objective functions are minimization of total transportation costs, total
inventory holding costs, penalty costs for delayed products and emission level
in urban area. It is solved by goal programming, and also fuzzy Choquet
Integral method is embedded for the third objective function. The application
of the model is realized on city logistics for a company in the automotive
industry. This proposed model makes selection decisions among the fuel vehicles
and electric vehicles in urban freight transport and also calculates the amount
of the products that have to be transported between facilities, the amount of
the delayed products and the inventory level for main warehouses in each time
period. Finally, the results are discussed under different scenarios.