Requirements for construction, including construction phasing, must be considered throughout development of the geometric schematic. Identifying constructability issues reduces change orders and delay costs and results in less inconvenience to the traveling public. Future maintenance problems may also be eliminated. Use of 3D modeling can help provide a view of construction conflicts and

may be required for FHWA FAHP projects greater than one million dollars

.

A multi-disciplinary review team should conduct the constructability review as it relates to areas of maintenance, traffic, design and construction. The review team should review requirements for access and operation of construction equipment to ensure that the geometric design can be built.