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首页> 外文期刊>Journal of Management in Engineering >Factors Affecting Schedule Delay, Cost Overrun, and Quality Level in Public Construction Projects
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Factors Affecting Schedule Delay, Cost Overrun, and Quality Level in Public Construction Projects

机译：影响公共工程项目进度延误，成本超支和质量水平的因素

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As a result of the loss of financial resources and the need to optimize projects, academics, politicians, and the construction industry have become increasingly aware of the challenges presented by the frequent time and cost overruns and reduced quality of construction projects. The purpose of this study was to analyze the factors that project managers experience as having the greatest effect on time, cost, and quality, and to discover whether the effects of these factors are significantly different from each other. A questionnaire with 26 factors identified from interviews was sent to the full population of publicly employed project managers. Factors were ranked using the relative importance index and tested for significant differences using Friedman's test. Wilcoxon's test was used in a post-hoc analysis. From the findings it was determined that the most influential factor for time is unsettled or lack of project funding; for cost, errors or omissions in consultant material; and for quality, errors or omissions in construction work. The main conclusion of this research is that project schedule, budget, and quality level are affected in significantly different ways. Therefore, a project manager cannot handle such critical issues by focusing only on schedule or budget complications; nor can he or she assume that time, cost, and quality are equally affected. (C) 2015 American Society of Civil Engineers.
机译：由于财政资源的损失以及对项目进行优化的需要，学者，政治家和建筑业越来越意识到频繁的时间和成本超支以及建筑项目质量下降所带来的挑战。这项研究的目的是分析项目经理所经历的对时间，成本和质量产生最大影响的因素，并发现这些因素的影响是否彼此显着不同。通过访谈确定了包含26个因素的调查问卷，该调查问卷已发送给所有受雇的公共项目经理。使用相对重要性指数对因素进行排名，并使用弗里德曼检验对显着性差异进行检验。 Wilcoxon的测试用于事后分析。根据调查结果，确定时间最有影响的因素是尚未解决或缺乏项目资金；顾问材料的成本，错误或遗漏；以及施工过程中的质量，错误或遗漏。这项研究的主要结论是，项目进度，预算和质量水平以明显不同的方式受到影响。因此，项目经理不能仅关注进度或预算复杂性来处理此类关键问题；他或她也不能假设时间，成本和质量都受到同样的影响。 （C）2015年美国土木工程师学会。

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