Critical Constructability Review Indicators for Construction of Transportation Infrastructure

Transportation Agencies (TAs) utilize Constructability Reviews (CR) to enhance project performance by introducing construction knowledge into the design process. The North Carolina Department of Transportation (NCDOT) conducts CR meetings for selected projects at approximately 70% of the design completion. This paper evaluates critical construction project factors that dictate the need for a CR. To determine these factors, the experience of previous CR participants, consultants, and contractors is needed. A survey was designed to identify project characteristics that indicate the need for a CR. This survey was sent to past CR participants (NCDOT employees, consultants, and contractors), and written responses were received. Meetings were held with all survey respondents to further discuss their written responses. A set of factors were identified by the respondents, which were then classified by category. These factors are reported herein and can be used to identify which construction projects could benefit from a CR, thus enabling the identification of infrastructure projects that may require greater scrutiny to receive it to ensure that they meet cost and schedule goals.