Abstract To improve the success rate of megaprojects from a relational perspective, we analyzed the factors that affect relational quality in megaprojects and the impact of relational quality on megaproject success. Based on survey data from 172 respondents, partial least squares structural equation modeling (PLS-SEM) was used to test the proposed structural model. The results show that in the case of low-level incentives, asset specificity and uncertainty have a negative impact on relational quality. Further, goodwill-based trust, competence-based trust and dependence have a positive effect on relational quality. However, in the case of high-level incentives, the negative impact of uncertainty on relational quality disappears, and the effect of asset specificity on relational quality becomes positive. In addition, this study validates the role of relational quality in promoting megaproject success; surprisingly, the moderating role of incentive level is not significant. These findings can help project managers improve megaproject success with the relational method and provide an inspiration for engineering managers to re-evaluate the effectiveness of incentives.

中文翻译：

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关系质量与大型项目成功之间的关系：激励的调节作用

摘要 为了从关系的角度提高大项目的成功率，我们分析了影响大项目关系质量的因素以及关系质量对大项目成功的影响。根据来自 172 名受访者的调查数据，使用偏最小二乘结构方程模型 (PLS-SEM) 来测试所提出的结构模型。结果表明，在低水平激励的情况下，资产专用性和不确定性对关系质量有负面影响。此外，基于善意的信任、基于能力的信任和依赖对关系质量有积极的影响。但是，在高层次激励的情况下，不确定性对关系质量的负面影响消失，资产专用性对关系质量的影响变为积极。此外，这项研究验证了关系质量在促进大型项目成功方面的作用；令人惊讶的是，激励水平的调节作用并不显着。这些发现可以帮助项目经理使用关系方法提高大型项目的成功率，并为工程经理重新评估激励的有效性提供启发。