 Here, I-95, expands to four lanes in the southbound direction, and has an interchange with the northern terminus of Route 337, that also provides access to Tweed New Haven Airport.Past this interchange, the freeway enters the town of East Haven, where US 1 parallels the highway on the both sides as a frontage road as the southbound direction narrows back to three lanes, before coming to a partial interchange with that route.Within the interchange, it also crosses the Northeast Corridor.