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首页> 外文期刊>Journal of Civil, Construction and Environmental Engineering >Evaluating Contractors’ Capacity Based on Safety Record and Performance of Road Construction Infrastructural Projects
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Evaluating Contractors’ Capacity Based on Safety Record and Performance of Road Construction Infrastructural Projects

机译：基于安全记录和道路建设基础设施项目的绩效评估承包商的能力

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A number of studies conducted in Kenya and internationally indicate that most of the construction firms and contractors do not seem to strictly observe safety administration in construction industry, hence compromised performance at implementation stage of projects and even later in the post-delivery stage. The study aimed to examine the influence of contractors’ safety record on road performance. This is to create better understanding of how the safety record of contractors could either positively or negatively influence performance of roads during post-delivery stage. The study used both descriptive survey research design and correlation design based on a pragmatic mixed method approach. Through stratified sampling and proportionate sampling, a sample of 210 was drawn from a population of 460 comprising of registered contractors and Public Service Vehicles (PSV) drivers within Nairobi County in Kenya. Questionnaires were distributed using simple random sampling. The questionnaires returned were 153 in total representing 72.8% of all questionnaires distributed to the respondents. Data was descriptively analyzed using percentages, frequencies, means and standard deviations for measuring central tendency and variability. Inferential analysis was done by use of correlation and regression. The descriptive analysis revealed that safety policy management system, insurance policy, and adequacy of standards in addressing safety outcome are to some extent practiced and adhered to. However, compliance behavior to safety procedures is still weak and requires improvement. The null hypothesis was tested and the results obtained from a simple linear regression indicated that, R=0.657, R2=0.431, B=0.359, t=10.703, F (1,151)=114.558, p=0.000< 0.05. This means that contractors’ safety record has a strong positive and significant relationship with road performance and that 43.1% of variation in performance is explained by safety record. This study recommends that contractors’ safety record should part and parcel of the evaluation criteria used in selection of a suitable road contractor to ensure road performance is achieved even after construction is completed. The study is significant in that it contributes to the body of knowledge by providing empirical data on the need for safety procedures in urban road construction and beyond.
机译：在肯尼亚和国际上进行了许多研究表明，大多数建筑公司和承包商似乎并不严格遵守建筑业的安全管理局，因此损害了项目实施阶段的绩效，甚至在交付后阶段。该研究旨在审查承包商安全记录对道路绩效的影响。这是为了更好地了解承包商的安全记录如何在交付后阶段在道路上积极或负面影响。该研究采用了基于务实的混合方法方法的描述性调查研究设计和相关设计。通过分层采样和比例取样，210的样品由460人群，包括肯尼亚内罗毕县内的注册承包商和公共服务车辆（PSV）司机。使用简单的随机抽样分发问卷。返回的问卷总额为153人，占向受访者分发给受访者的所有问卷量的72.8％。使用用于测量中央趋势和可变性的百分比，频率，装置和标准偏差来描述数据描述了数据。通过使用相关性和回归来完成推理分析。描述性分析透露，在解决安全结果方面的安全政策管理系统，保险单和充分性是在某种程度上练习和遵守。但是，对安全程序的合规行为仍然疲弱，需要改善。测试零假设，并从简单的线性回归获得的结果表明，R = 0.657，R2 = 0.431，B = 0.359，T = 10.703，F（1,151）= 114.558，P = 0.000 <0.05。这意味着承包商的安全记录与道路性能有着强大的积极和重要的关系，并通过安全记录解释了43.1％的绩效变化。本研究建议承包商的安全记录应在选择合适的道路承包商中使用的评估标准，即使在建设完成后也实现了道路性能。该研究具有重要意义，因为它通过提供有关城市道路建设的安全程序的经验数据，有助于了解知识体系。

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