The duties of a civil transportation engineer include the construction and maintenance of various transport systems and infrastructure design for roads, railways, airports, and canals. Responsibilities include reading and making edits to proposals drafted by other engineers, analyzing engineering data and schematics using CAD software, and recommending driving policies. You develop budgets and schedules for projects, manage a design team in some cases, work on all project phases including creating proposals and reviewing final work, while also mentoring junior staff and ensuring all projects meet quality standards and client requirements.