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Professionals’ Perceptions on Construction Progress Measurement Methods Used in Ghana

机译:专业人士对加纳使用的施工进度测量方法的看法

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Progress measurement is cardinal for effective project delivery. It assesses the physical amount of completed work within budgeted cost and manpower performance at a specified stage of the project. Effective progress measurement facilitates progress monitoring, an inevitability for identifying early warning?signs and confirmation of structured work proceeding. Different progress measuring methods are available and used for construction projects. They range from the traditional to the contemporary ones like three-dimensional and four-dimensional models. This paper examines current progress measurement methods used in the Ghanaian construction industry. Eight commonly employed methods were identified from the literature?and?rated by sixty-two construction professionals, practicing with tier one construction firms and construction consultancy services. Relative Important Index ranking and Mann-Whitney?U?test statistics were used to rank and check the consistency of survey responses. Cost Ratio ranked?the?highest, followed by Supervisor’s Opinion and Units?Completed. The fourth-ranked method was Time Ratio, then Incremental Milestone before Start-Finish.?Weighted/Equivalent Units?was at?the penultimate with Earned Value Analysis ranked?the?lowest. The study will not only underscore the relevance of the current project progress measurement practices and provoke prolific debates on their merits, but will also serve as a precursor for critical evaluation of the methods with the view to identifying?barriers militating against realistic progress assessment of construction works.
机译:进度测量是基本的有效项目交付。它评估预算成本和项目指定阶段的预算成本和人力业绩的物理金额。有效的进展测量有助于进程监测,识别预警的不可避免性?结构化工作诉讼的迹象和确认。提供不同的进展测量方法,并用于建筑项目。它们的范围从传统到当代人像三维和四维模型。本文研究了加纳建筑业使用的当前进度测量方法。从文献中确定了八种常用的方法?和?由六十二个建筑专业人士评级,练习一级建筑公司和建筑咨询服务。相对重要的指数排名和曼恩惠特尼?你?测试统计数据用于排名并检查调查响应的一致性。成本比排名?最高,其次是主管的意见和单位?完成。第四个排名的方法是时间比,然后在启动前增量里程碑 - 减少/不等价单位?倒数第二次,赢得了价值分析排名?最低。该研究不仅强调了目前项目进度测量实践的相关性,并挑起了对其优点的多元辩论,但也将作为批判性评估这些方法的前体,以识别出识别的方法?障碍反对建设的现实进步评估作品。

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