The town is served by two train stations, one in Noroton Heights and the other in downtown Darien. The Connecticut Turnpike (Interstate 95) runs through town, as does the Post Road, U.S. Route 1. Just to the north of town, the Merritt Parkway (Route 15) runs roughly parallel to the northern border between Darien and New Canaan. The Talmadge Hill railroad station is just north of the border as well. Along with the Post Road, major east–west thoroughfares in town are West Avenue and Middlesex Road. Major north–south roads are Hoyt Street, Hollow Tree Ridge Road, Nearwater Lane, Noroton Avenue, Middlesex Road, Mansfield Avenue and Brookside Road.