IRTBA is the authoritative voice and credible information source for the transportation design and construction industry in Illinois. Illinois is quite literally the center hub for transportation in our nation. Our transportation network provides the foundation needed to keep businesses and families moving every single day – to get to and from work or school; to bring families together; and to move goods and services in and out of our state. Our roads, bridges, runways, railways, and waterways are the key to Illinois’ economic livelihood. We must invest in the future in order to remain a transportation leader.