Risk factors influencing time and cost overrun in multiple D&B projects in Malaysia: A case study

Currently Design and Build (D&B) has gained
popularity in the construction industry due to its attractive
financial aspects. The development projects are
implemented by D&B because of its special nature, crucial
time requirements and size. Many D&B projects ended in
the hands of contractors lacking knowledge on the other
major constraints of this procurement method. They are
basically committed by judgement and inadequate
experience and unable to execute the project within the
agreed time and price. The risk is more while committing to
multiple simultaneous projects. This paper is a part of the
research involving seven (7) case studies on actual multiple
D&B projects. Site visits and project documents provided
the core data for the case studies. The characteristic
background of each project is presented with contractor’s,
consultant’s and owner’s opinions. From the collected
information, data on the factors influencing time and cost
overruns were summarized. The researcher’s opinions on
each case study are provided in conclusions.