Why Does I-180 In Wyoming Have Traffic Lights?

There is part of Wyoming's interstate system that runs through Cheyenne, Wyoming, that has stoplights. Interstates are supposed to be limited access without lights to keep the traffic moving. Yes, that is part of the interstate system. Major tolled interstates include I-90 (Indiana, Ohio, New York, Massachusetts), I-95 (East Coast), I-76 (Pennsylvania), and I-80 (Ohio, Indiana, Illinois). Wyoming Dinosaur Center Thermopolis Wyoming has one of the most interesting and active dinosaur museums in the world.