Under general supervision, supervises professional traffic engineer work related to the design of traffic signals and signal timings, streets and roads and the regulation and flow of traffic, and performs related duties as required. ESSENTIAL DUTIES: Prepares, reviews, and approves engineering plans for new streets, traffic signals and signal timings, and traffic control devices prepared by staff and/or consultant engineering firms. Reviews and approves plans prepared by consultant engineering firms to ensure compliance with established design standards and specifications, sound engineering principles and City ordinances and make changes as required. Assigns, monitors and participates in investig