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U.S. Route 1 Business (Trenton, New Jersey)

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The old US 1 Alt. in Trenton is now signed by the New Jersey Department of Transportation as part of US 1 Bus., despite not being officially recognized as such. Signage in Pennsylvania no longer exists; most of the former US 1 Alt. is now part of Pennsylvania Route 32 (PA 32). US 1 Alt. was created in 1953 after US 1 was moved to a freeway between Morrisville and the Brunswick Circle. By the 1980s, when the Trenton Freeway was extended to its current terminus, US 1 Bus. was created onto its current alignment and US 1 Alt. was removed through Trenton and Morrisville.

Route description

US 1 Bus. begins at a split from the median of the US 1 freeway in Trenton, having access to and from the south along US 1. The road heads north as a four-lane divided highway before making a turn to the northwest. The route becomes four-lane undivided Strawberry Street and passes through residential areas. At the border of Lawrence Township and Trenton, the road enters the Brunswick Circle, where it junctions with northbound US 206 and CR 645. At the circle, the route turns northeast onto a four-lane divided highway known locally as the Brunswick Pike (originally the Trenton and New Brunswick Turnpike) and enters Lawrence Township. The road runs through residential and commercial areas and passes Colonial Lake, with a few intersections controlled by jughandles. US 1 Bus. has an intersection with CR 616, which heads east to provide access to US 1. Further to the northeast, the settings become more commercial before US 1 Bus. merges into northbound US 1 at the northeast end of the Trenton Freeway.

Despite the official route beginning at US 1 near the Brunswick Circle, signage has US 1 Bus. begin at the Lower Trenton Bridge over the Delaware River, just north of the Trenton–Morrisville Toll Bridge (US 1). The continuation into Pennsylvania is State Route 2060 (SR 2060), an unsigned quadrant route, to the PA 32 intersection in Morrisville. From the bridge, US 1 Bus. signage heads northeast on Bridge Street, with the road curving north onto Warren Street into downtown Trenton. At Livingston Street, the road becomes a one-way pair following Warren Street southbound and Broad Street northbound, concurrent with US 206. At the south end of Route 31, the one-way pair becomes Brunswick Avenue northbound and Martin Luther King Jr. Boulevard southbound, heading northeast. These two roads are two-way but carry only one direction of US 1 Bus./US 206. The one-way pair continues to the Brunswick Circle, where the official US 1 Bus. continues north. Strawberry Street is signed "to US 1 south" from the circle and as US 1 Bus. north from US 1. Southbound US 1 Bus. leaves the circle with US 206 southbound on the Brunswick Circle Extension, merging with Princeton Avenue (CR 583). Officially, the Brunswick Circle Extension is CR 645 and US 206 southbound bypasses the circle via Princeton Avenue, but all signage points US 206 through the circle. Northbound US 1 Bus. and US 206 simply enter the circle from Brunswick Avenue.

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