Amusan Lekan M, Afolabi Adedeji, Ojelabi Raphael, Omuh Ignatius, Okagbue Hilary I
Department of Building Technology, Covenant University, Ota, Nigeria.
Department of Mathematics, Covenant University, Ota, Nigeria.
Data Brief. 2018 Feb 16;17:1320-1325. doi: 10.1016/j.dib.2018.02.035. eCollection 2018 Apr.
This data article explores the factors that contribute to maintaining steady cost projection on construction projects. The data was obtained using structured questionnaire designed in Likert scale. The responses were solicited from category of construction practitioners. Simple random sampling was employed in the distribution of the questionnaires to the respondents. Data samples were analysed using severity index, ranking and simple percentages. The analysis of the data brought to fore some important data on factors that causes cost overrun, they include: contractor's inexperience, inadequate planning, inflation, incessant variation order, and change in project design. They are critical to causing cost overrun, while project complexity, shortening of project period and fraudulent practices are found to be responsible. The data fall within the percentages of possible consequences of cost overrun when compared with those available in scientific literature. The data can provide insights on how to mitigate the risks of project deviation from initial cost and as-built project.
本文探讨了有助于维持建设项目成本预测稳定的因素。数据通过采用李克特量表设计的结构化问卷获得。向建筑从业者类别征求了回复。在向受访者分发问卷时采用了简单随机抽样。使用严重性指数、排名和简单百分比对数据样本进行了分析。数据分析揭示了一些导致成本超支的重要因素，包括：承包商缺乏经验、规划不足、通货膨胀、频繁的变更单以及项目设计变更。它们对导致成本超支至关重要，而项目复杂性、项目周期缩短和欺诈行为也被认为是原因。与科学文献中的数据相比，这些数据属于成本超支可能后果的百分比范围。这些数据可以为如何降低项目偏离初始成本和竣工项目的风险提供见解。
