RT - Journal Article T1 - Identifying and Classifying the Causes of Delay in Construction Projects (Case: City of Sirjan) JF - iueam YR - 2019 JO - iueam VO - 7 IS - 27 UR - http://iueam.ir/article-1-1247-en.html SP - 65 EP - 75 K1 - Project Management K1 - Construction Projects K1 - Delay K1 - ISM K1 - BWM K1 - City of Sirjan AB - Successful implementation of construction projects is one of the key factors for economic development of every country. Construction projects are often criticized for overrunning time and budgets. Thus, analyzing the factors causing delay is essential with the aim of omitting them. Several researches have been conducted to identify the reasons and causes of delays in different countries. In this paper, various researches investigated different factors affecting construction projects delays have been analyzed and 24 effective factors on construction projects have been identified and extracted. Data were collected from experts of contracting companies, employers, head of the workshop, and observers of construction projects in Sirjan city. To analyze the data and prioritize contributing factors affecting construction projects delays, two techniques of soft and hard operational research methods including ISM and BWM were used. The results indicated inadequate experience and knowledge, inadequate modern equipment, financial problems, difficulties in obtaining construction materials, the conflict among contractor, consultant and owner, and improper planning are the most important effective factors on construction projects delays. LA eng UL http://iueam.ir/article-1-1247-en.html M3 ER -