本研究以單一汽車貨運業者的角度，評估當運輸需求大於自有車輛服務能力時，考量車種、時窗、貨物量等因素，以最小化成本為目標進行途程規劃，利用運輸水平整合、協同合作的概念，將未能滿足之需求任務委外給其他同業進行。 本研究主要分為兩階段，第一階段先確認是否需要委外，以禁忌搜尋法找出最節省成本之配送途程以及委外任務，解決業者選擇以自有車輛運送或委外給其他運輸業者服務的問題；而第二階段則是在確定委外的任務後，決定委外的對象，不僅考量對方出價，也評估對方的營運能力、商譽、風險管理、服務品質等因素，建構一多準則決策模式，透過網路程序分析法(ANP)決定評選準則權重，再利用VIKOR排序法決定各個方案之排序，希望能在不遺失客戶訂單及信任的期許下，決定最適合的委外對象。 / From the perspective of trucking carriers, concerning transport horizontal integration and collaboration, when the vehicles are insufficient to meet the demand of transport, carrier could seek for other carrier’s help. In this study, we consider vehicle types, capacity, time windows, and the objective of minimum cost, to do vehicle route planning, and also decide which tasks should be outsoursed. There are two phases in this study. First, after checking the insufficiency of own trucks, we use Tabu search to solve Vehicle Routing Problem with a Private fleet and a Common carrier (VRPPC) in order to find out the route of own vehicles and the tasks to be outsourced. In second phase, we will select the carrier to do those tasks. We not only consider the price of outsourcing, but also evaluate the capacity, service quality, risk management, and the goodwill of the company. We use Analytic Network Process (ANP) to decide the weight of each criterion, and VIKOR to rank each case and select the best one.