toll road, turnpike, pike, tollway = płatna droga, płatna autostrada

of Houston's toll roads.

Source: http://politicsoffthegrid.wordpress.com/2007/06/20/houston-toll-road-increasedone-deal/

płatna droga, płatna autostrada

English sentence and Polish translation

There are always a lot of cars on the Pennsylvania Turnpike. = Zawsze jest dużo samochodów na płatnej autostradzie Pennsylvania.