A to Z Index> About CTDOT> FAQ> Fast Facts> Highways and Bridges> Transit - Bus, Train, Ferry> Bicycles and Pedestrians> Road Signs, Pavement Markings and Signals> Environmental Planning> Major Projects> Traffic Count Data> Traveling in Connecticut> Open Data Portal> Contact Us> Search Department of Transportation Search the current Agency with a Keyword Filtered Topic Search SEARCH CTDOT Traffic Noise Program Learn more about highway traffic noise, regulations, and types of barriers used in Connecticut. Who Regulates Traffic Noise? What is a Noise Barrier? Types of Noise Barriers Traffic Noise Policies Noise Resources Type II Statewide Noise Analysis