Under direction, supervises the activities of assigned engineering and administrative staff in the Traffic Engineering Division of the Public Works Department and Engineering Design Division of the Harbor Department; oversees the design of signing and striping, traffic control, traffic signal timing, traffic signal and intelligent transportation systems (ITS); performs traffic and transportation research, analysis, planning, and design; oversees preparation and/or prepares project reports, plans, specifications, estimates, grant applications, progress reports, and other technical documents; supervises, trains, and evaluates assigned staff; monitors the work of consultants/contractors performing traffic/transportation engineering for the City; prepares or assists in preparation of divisi