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Impact of Design Cost on Design Bid Build Project Performance

机译：设计成本对设计出价建设项目性能的影响

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Some study show that the performance of DBB projects depend upon the quality of the design. If errors are minimized during the design phase, then, construction costs are reduced and schedule growth are minimized. Therefore it is necessary that owners focus more on the project's design phase in order to improve the construction project performance. Based on prior research, this study hypothesizes that there are relationships between design costs and construction project performance of DBB public projects. Data was collected and analyzed regarding design cost, construction award cost, final construction cost, and construction duration of a set of DBB public projects. The analysis showed that the design cost was significantly correlated with construction cost growth and schedule growth of the public projects under evaluation. In addition, the design cost was found to have a significant correlation with the final construction cost. Using, a regression model developed to predict the final construction cost of a road project, and also using the design cost as an input variable, the R-square value of this model was found to be 58.7%. This result indicates that when design costs are higher, project construction performance is better.
机译：一些研究表明，DBB项目的性能取决于设计的质量。如果在设计阶段期间最小化误差，则减小施工成本并最小化了调度增长。因此，所有者必须更多地关注项目的设计阶段，以提高建设项目性能。本研究基于现有研究，假设DBB公共项目的设计成本与建设项目绩效之间存在关系。有关设计成本，建设奖励成本，最终建设成本和一套DBB公共项目的建设持续时间，收集和分析数据。分析表明，设计成本与评估下的公共项目的建设成本增长和安排增长显着相关。此外，发现设计成本与最终的施工成本具有显着的相关性。使用的回归模型以预测道路项目的最终施工成本，并且还使用设计成本作为输入变量，该模型的R平方值被发现为58.7％。该结果表明，当设计成本较高时，项目施工性能更好。

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