Title |
Modified Delay Analysis Considering Production Rates |
Keywords |
Delay ; Productivity ; Claims ; Delay Analysis |
Abstract |
There are various methods offered in construction literature that are considered professionally acceptable for determining the schedule impact resulting from delays and interruptions. But, in analyzing the delay a care should be taken for the productivity change. The previous delay analysis technique makes the basic assumption that the relationship between time and the number of units produced is linear. Accordingly, daily percentage completes are assumed equally distributed along the activities’ actual durations. However, this assumption does not reflect the real situation for activity durations in construction projects. In reality, the more times an operation is performed, the shorter will be the time needed to perform it. As such there is a need for the methodology or approach that will be used to substantiate or analyze the delay components of a claim to incorporate probable rates of production over time for each activity. This paper proposes a modified delay analysis that can correctly apportion delays considering feasible production rates of activities in construction projects. |