This research project investigated how internal and external factors impact let date and construction start time change, and designed forecast model approaches to predict construction expenditures and monitor the performance for NCDOT projects of $50,000,000 or greater construction cost (Mega Projects). The research team developed an interview questionnaire and interviewed 23 NCDOT experts and contractors to identify the key problems and generate recommendations for improvement related to portfolio management, preconstruction phase, bidding phase, and construction phase. In addition, the research team has also identified checklists of major milestones to meet let dates and developed three model design concepts to better estimate construction payouts.
