ITS engineers design and integrate systems such as adaptive traffic control, real-time transit information, autonomous vehicle coordination, smart parking, traffic sensing, and V2X communication. They use transport simulation models, sensor technologies, roadway electronics, and mobility data analytics. They collaborate with transport planners, civil engineers, and smart-city teams to implement connected, efficient, and sustainable mobility networks. Growth in autonomous mobility, digital transport governance, and congestion management drives rapid demand for ITS professionals worldwide.