We know strong transportation infrastructure is a key ingredient to economic growth. It protects the safety and reliability of travel and transportation. It also supports our economy with investments in the highways, public transit, airports, passenger rail and ports. This money creates engineering and construction jobs today and prepares us for jobs tomorrow bringing growth to our economy. The $13.1 billion Maryland spent in transportation over the last five years has generated $29.3 billion in business output, including $12.9 billion in wages and nearly 35,000 jobs per year.