這項研究的目的是開發一個仿真模型，以幫助業主從競標競爭力的角度確定項目細分。此外，本研究將提供一個決策支持系統來確定合同包的大小，從而以優惠的價格創造出最低的投標價格。通過SIMUL8進行的離散事件模擬（DES）用於模擬印度尼西亞道路養護項目的拍賣。擬議的研究在模擬模型中涉及投標人和市場條件。該模型總共輸入了42個具有不同能力的承包商。如預期的那樣，所有者可以在響應各種尺寸的工作包時觀察其投標價格行為。仿真結果表明，將項目從大項目分割為較小的包裝將有助於提高建築拍賣的競爭力。結果，平均出價價格往往對所有者更有利。本研究從市場條件，項目規模和資源的角度為業主提出了管理建築拍賣的合同策略。該模型簡單有效，可以作為決策支持系統。

The purpose of this study is to develop a simulation model to assist the owner in determining project segmentation from a bidding competitiveness perspective. Furthermore, this study will provide a decision support system to determine the size of the contract package, which creates the lowest bid price at a beneficial price. Discrete event simulation (DES) through SIMUL8 was applied to simulate the auction of road preservation projects in Indonesia. The proposed study involves bid participants and market conditions in the simulation model. In total, 42 contractors with different capacities were entered into the model. As expected the owner could observe their bid-price behavior in responding to various sizes of work packages. Simulation results indicate that project segmentation from a large project into smaller packages tends to increase competitiveness in construction auction; as a result, the average bid price tends to be more beneficial for the owner. This study presents a contract strategy for the owner in managing construction auctions from the perspectives of market conditions, project size, and resources. The proposed model is simple and effective to be applied as a decision support system.

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