The Oklahoma Turnpike Authority (formerly Oklahoma Transportation Authority, and before that originally the Oklahoma Turnpike Authority) is a government agency of Oklahoma that deals with issues regarding the Oklahoma turnpike system. Under the supervision of the Oklahoma Secretary of Transportation, the Authority's mission statement is to "construct, operate, and maintain a safe and economical turnpike system for the convenience of customers". Along with the Oklahoma Department of Transportation, the Authority is the primary infrastructure construction and maintenance agency of the State. - Source: Wikipedia