The Analysis of Delayed Duration Caused by Unpredictable Factors in Pammukkulu Dam D J A Fatkhurrahman2, R U Latief1 and S Burhanuddin1
Department of Civil Engineering, Faculty of Engineering, Universitas Hasanuddin, Gowa, Indonesia
Abstract. This study aims is to find the critical path which caused delay on the projects. Several factors which may affect to the delay are the weather, the lack of manpower, supply chain, equipment and so on. The research methodology was conducted to elaborate the causes are by using qualitative and quantitative researches. Over 35 respondents and 10 expert^s interviewee fill the questioner and were collected within two months. The result obtained is accelerated 3 paths from critical path method (CPM) then calculated the crashing program for each alternative. The alternative of acceleration applied are add the working hours in 4 (four) hours and 7 (seven) hours. In the end, the addition of 4 (four) hours could increase the workforce up to 25% of the total number of workers to get the value of accelerated finishing projects without ignoring the quality and quantity of them. Also, the additional labour is more beneficial in terms of costs they have relativity small number of working hours and would be more efficient.
Keywords: construction, management, time cost trade off, scheduling