PT Engineering (as a subconsultant to AECOM) provided simulation analysis and oversight services for a study utilizing TransModeler along US 74 in Mecklenburg County. The first stage of the study was completed in June 2015 and included the evaluation of spot studies where the express lanes begin and end along US 74. A second study was then developed that included a full model for the study area for use in optimizing the design and operations of the U-5526 project. An additional study was then completed to evaluate the traffic operations of the planned conversion of the corridor from Wallace Lane to I-485 including the construction of both general purpose lanes and express lanes. PT Engineering was responsible for developing the technical approach for the studies and provided technical oversight throughout the development of the studies.