A growing trend toward precast concrete construction systems for water and airport traffic control towers promises designers a cost-effective and easy-to-construct option. When it comes to traffic control, the Federal Aviation Administration (FAA) is taking the lead in expanding this market as it designs and builds a series of towers at airports large and small around the country. As it does so, it is taking full advantage of the benefits of precast such as speed of construction and the ability to produce high quality designs.