Mr. Lum has been a registered traffic engineer in California for over 25 years, splitting time equally between the private and public sectors. He has been directly involved in many aspects of traffic engineering, including reducing correctable collisions, conducting speed surveys, implementing parking restrictions, relieving congestion, making public presentations, coordinating signals, and analyzing future traffic impacts. Gordon is an ITE Fellow.

Mr. Mahama is the Design/Traffic Group Leader at DKS Associates. He is one of three Project Managers selected by the Metropolitan Transportation Commission (MTC) to retime approximately 550 Traffic Signal annually throughout the Bay Area. His professional experience includes traffic operations, signal design, traffic signing and striping design, intelligent transportation systems design (ITS), and transportation studies.