The Ohio Turnpike, officially opened in 1955, runs for 241 miles across the northern part of the state. At its eastern border, the turnpike connects with the Pennsylvania Turnpike, a toll road. It travels through Cleveland, the state's second largest city, follows the coast of Lake Erie to Toledo, and continues across to the western border to the Indiana Toll Road, which is also near the border with Michigan. These connections in turn, link to major toll roads from Massachusetts, New York, and Illinois. All of these states are major manufacturing and commercial centers, and the turnpike serves both trucking and passenger vehicles traveling across the state.