The Interstate highways in the state are Interstate 95 (I-95) traveling southwest to northeast along the coast, I-84 traveling southwest to northeast in the center of the state, I-91 traveling north to south in the center of the state, and I-395 traveling north to south near the eastern border of the state.
The other major highways in Connecticut are the Merritt Parkway and Wilbur Cross Parkway, which together form Connecticut Route 15 (Route 15), traveling from the Hutchinson River Parkway in New York parallel to I-95 before turning north of New Haven and traveling parallel to I-91, finally becoming a surface road in Berlin.
I-95 and Route 15 were originally toll roads; they relied on a system of toll plazas at which all traffic stopped and paid fixed tolls.
A series of major crashes at these plazas eventually contributed to the decision to remove the tolls in 1988.
Other major arteries in the state include U.S. Route 7 (US 7) in the west traveling parallel to the New York state line, Route 8 farther east near the industrial city of Waterbury and traveling north–south along the Naugatuck River Valley nearly parallel with US 7, and Route 9 in the east.

Between New Haven and New York City, I-95 is one of the most congested highways in the United States.
Although I-95 has been widened in several spots, some areas are only three lanes and this strains traffic capacity, resulting in frequent and lengthy rush hour delays.
Frequently, the congestion spills over to clog the parallel Merritt Parkway and even US 1.
The state has encouraged traffic reduction schemes, including rail use and ride-sharing.

Connecticut also has a very active bicycling community, with one of the highest rates of bicycle ownership and use in the United States, particularly in New Haven.
According to the U.S. Census 2006 American Community Survey, New Haven has the highest percentage of commuters who bicycle to work of any major metropolitan center on the East Coast.
The Interstate highways in the state are Interstate 95 (I-95) traveling southwest to northeast along the coast, I-84 traveling southwest to northeast in the center of the state, I-91 traveling north to south in the center of the state, and I-395 traveling north to south near the eastern border of the state. The other major highways in Connecticut are the Merritt Parkway and Wilbur Cross Parkway, which together form Connecticut Route 15 (Route 15), traveling from the Hutchinson River Parkway in New York parallel to I-95 before turning north of New Haven and traveling parallel to I-91, finally becoming a surface road in Berlin. I-95 and Route 15 were originally toll roads; they relied on a system of toll plazas at which all traffic stopped and paid fixed tolls. A series of major crashes at these plazas eventually contributed to the decision to remove the tolls in 1988. Other major arteries in the state include U.S. Route 7 (US 7) in the west traveling parallel to the New York state line, Route 8 farther east near the industrial city of Waterbury and traveling north–south along the Naugatuck River Valley nearly parallel with US 7, and Route 9 in the east.
Between New Haven and New York City, I-95 is one of the most congested highways in the United States. Although I-95 has been widened in several spots, some areas are only three lanes and this strains traffic capacity, resulting in frequent and lengthy rush hour delays. Frequently, the congestion spills over to clog the parallel Merritt Parkway and even US 1. The state has encouraged traffic reduction schemes, including rail use and ride-sharing.
Connecticut also has a very active bicycling community, with one of the highest rates of bicycle ownership and use in the United States, particularly in New Haven. According to the U.S. Census 2006 American Community Survey, New Haven has the highest percentage of commuters who bicycle to work of any major metropolitan center on the East Coast.
Connecticut