Sürdürülebilir Araç Tahsis Problemlerinde Zaman Penceresi Seçimlerinin Etkisi Üzerine Analizler

Bu çalışma, Araç Tahsis Problemlerinde zaman penceresi seçimlerinin ekonomik, sosyal ve çevresel göstergeler açısından etkilerini incelemeyi amaçlamaktadır. Bildiğimiz kadarıyla ilgili literatürde böyle bir çalışma bulunmamaktadır. Bu amaçla, ilk olarak, zaman pencereleri kısıtlamaları altında kar maksimizasyonu hedefi olan genel bir Araç Tahsis Problemi için bir Karma Tam sayılı Programlama modeli sunuyoruz. Bu model, modelin pratikte uygulanabilirliğini ortaya koymak için analizler yapmak ve Araç Tahsis Problemlerinde zaman penceresi seçimlerinin tahsis kararlarının ekonomik, sosyal ve çevresel sonuçları üzerindeki potansiyel etkilerini ortaya çıkarmak için kullanılmıştır. Sayısal sonuçlar, ele alınan problemde genişletilmiş zaman pencerelerinin ekonomik ve çevresel faydalar sağlama potansiyeline sahip olduğunu göstermektedir. Ayrıca, iskontolu fiyat uygulaması yoluyla hem nakliye şirketi hem de müşterileri için cazip, nakliye lojistik ağının ekonomik ve sosyal performanslarını iyileştiren bir iş birliği politikası önerilmektedir.

Analyses on the Effects of Time Windows Choices on Sustainable Vehicle Allocation Problems

This study aims to analyze the effects of the time windows choices in Vehicle Allocation Problems with respect to economic, social, and environmental indicators. As far as we know, such an attempt does not exist in the related literature. For this purpose, we first present a Mixed Integer Programming model for a generic Vehicle Allocation Problem with profit maximization objective under time windows constraints. This model is used to conduct analyses for demonstrating the applicability of the model in practice and to reveal potential effects of the time windows choices on economic, social, and environmental outcomes of allocation decisions in Vehicle Allocation Problems. The numerical results show that loosened time windows have the potential to provide economic and environmental benefits in the addressed problem. We also propose a collaboration policy attractive to both the transportation company and its customers through price discounts, which improves economic and social performances of the addressed transportation logistics network.

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