Delivery optimization via heterogeneous fleet

Name: Peesit Tangtung

keyword: Fleet routing problem

; Vehicle routing problem

; Distribution routing problem

; Delivery routing problem

; Route optimization problem

; Distribution system optimization

; Time window

; Heterogeneous fleet

Abstract: This research optimizes tire distribution operations through a heterogeneous fleet vehicle routing problem with time window (HFVRPTW) solved with Google OR- Tools. The model minimizes total transportation costs, including fixed and distance- based variable costs, while meeting customer demands from a central depot. A heterogeneous fleet with varying capacities and cost structures is considered, enabling efficient vehicle allocation and allowing multiple trips per vehicle. By addressing key constraints such as vehicle capacity, demand, and route distances, the model determines optimal routes and vehicle assignments. Results show that a heterogeneous fleet provides greater flexibility and significant cost savings compared to a uniform fleet, offering practical insights for logistics optimization and efficiency improvement in distribution networks.

Thammasat University. Thammasat University Library

Address: BANGKOK

Email: preserv@tu.ac.th

Name: Sun Olapiriyakul

Role: advisor

Created: 2025

Modified: 2026-04-27

Issued: 2026-04-27

วิทยานิพนธ์/Thesis

application/pdf

DOI: 10.14457/TU.the.2025.55

eng

DegreeName: Master of Engineering

Level: Master's Degree

Descipline: Logistics and Supply Chain Systems Engineering

Grantor: Thammasat University

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