Abstract

Lean aims to maximise value while minimising waste. Hence, it is essential to use Lean tools and techniques for achieving higher value in construction projects. Being one of the Lean techniques, time studies are of utmost importance in terms of measuring productivity and construction project success. This paper aims to assess the use and effectiveness of time studies in Lean construction projects along with a case study. According to the case study analysis, it is observed time studies are effective techniques to identify value and non-value-adding activities. The study also indicates that it is critical to conduct time studies for implementing proper Lean strategies. Time study is not a direct tool to improve processes; however, it is an irreplaceable indicator, which helps identify waste and select best strategies accordingly. Hence, the main contribution of this study is to highlight the important role of time studies in terms of providing a roadmap for identifying waste and increasing productivity accordingly. Besides, a framework and strategies with respect to waste types are proposed to promote the use of time studies. The study is expected to encourage construction professionals in terms of utilising Lean practices and specifically time studies in their projects.

摘要

精益旨在最大限度地提高价值，同时最大限度地减少浪费。因此，必须使用精益工具和技术在建筑项目中实现更高的价值。作为精益技术之一，时间研究在衡量生产力和建设项目成功方面至关重要。本文旨在通过案例研究评估精益建设项目中时间研究的使用和有效性。根据案例研究分析，观察到时间研究是识别价值和非增值活动的有效技术。该研究还表明，进行时间研究以实施适当的精益战略至关重要。时间研究不是改进流程的直接工具；然而，它是一个不可替代的指标，它有助于识别浪费并相应地选择最佳策略。因此，本研究的主要贡献是强调时间研究在提供识别浪费和相应提高生产力的路线图方面的重要作用。此外，还提出了关于废物类型的框架和策略，以促进时间研究的使用。该研究预计将鼓励建筑专业人士在他们的项目中使用精益实践，特别是时间研究。