【正文】 ldin, . (1996). Constructability Improvements of Project Designs. Journal of Construction Engineering and Management. ASCE. Vol. 114(4). [8] Hugo, F., O’Connor, . and Ward, . (1990). Highway Constructability Guide. Research Project 36881149. [9] Centre for Transport Research. Uviversity of Texas, Austin. Nima, . (2021). Construction Experience Percentage (%) 05 yrs 610 yrs 1115 yrs More than 15 yrs 7 Constructability in the Malaysian Construction Industry. [10]UPM. PhD. Highway In Malaysia. Journal of Construction Engineering and Management, ASCE. Vol. 128(4). O’Connor . and Davis, . (1988). Constructability Improvement During Field Operations. Journal of Construction Engineering and . Vol. 114(4). [11] Rosli Mohamad Zin (2021). Constructability Improvement of Project Design. Dept of Civil Engineering. UTM. . Thesis. [12]Russell, ., Gugel, . and Radke . (1993). Benefits and Costs of Constructability: Four Case Studies. Report 109. Department of Civil and Environmental Engineering. University of WisconsinMadison, Madison, Wisconsin. 8 2 譯文 公路設(shè)計(jì)階段的施工性概念 Rosli Mohamad Zin 、 Siti Hafizan Hassan 馬來西亞 Teknologi Malaysia 大學(xué) 土木工程學(xué)院 , 摘要 ：大多數(shù) 公路建設(shè)項(xiàng)目的特點(diǎn)是 交通問題、大幅度的變化、 規(guī)劃不善、糾紛、成本超支、安全性差、實(shí)踐、時(shí)間延遲。 1 原文 DESIGN PHASE CONSTRUCTABILITY CONCEPTS FOR HIGHWAY CONSTRUCTION Rosli Mohamad Zin and Siti Hafizan Hassan Faculty of Civil Engineering, University Teknologi Malaysia, 81310 UTM Skudai, Malaysia , ABSTRACT: Most highway construction projects are characterized by traffic problems, a substantial number of changes, poor planning, disputes, cost overruns, poor safety practices and time delays. An effective constructability review at the design stage has the potential to incorporate into design best practices and lessons learned from previous projects, thereby improving the project constructability. Several studies have indicated that constructability is not being implemented to its full potential in highway construction projects. This study tries to explore the level of constructability implementation in highway projects in the Malaysian construction industry. The degree of importance and application of constructability concepts were investigated. The results show that a total of eighteen design phase constructability concepts have been regarded as important by participants of the construction industry. Despite its importance the level of application of several constructability concepts are found to be not encouraging. The findings of this study formed a basis for the development of design review guidelines for improving constructability of future highway projects in this country. Keywords: Constructability, Design Phase, Concepts, Highway 1 INTRODUCTION The government and private agencies that carried out highway project construction are facing the reality that the public will no longer tolerate construction projects that are insensitive to road users and adjacent munities. According to Russell et al. (1992) highway construction projects are characterized by traffic problems, a substantial number of changes, poor planning, disputes, cost overruns, poor safety practices and time delays. Constructability is seen as one of the best solutions to these problems. 1 Constructability has been defined in a number of ways. Constructability is described as the optimum use of construction knowledge and experience in planning, design, procurement, and field operations to achieve overall project objectives (CII, 1986). Constructability is also defined as the extend to which the design facilitate ease of construction (CIRIA, 1983). Finally, constructability is often portrayed as integrating construction knowledge, resources, technology and experience into the engineering and design of a project (Anderson et al., 2021)。 Highway project constructability can be particularly challenging for a variety of reasons. It is known that highway construction technologies are changing rapidly, and, as with most construction, the work force and site conditions can vary greatly. In the local construction industry mo