Route 18 is a 47.9-mile-long (77.1 km) state highway in the central part of the US state of New Jersey. It begins at an intersection with Route 138 in Wall Township, Monmouth County and ends at I-287 in Piscataway, Middlesex County. Route 18 is a major route through Central New Jersey that connects the Jersey Shore to the Raritan Valley region, connecting the county seats of Monmouth (Freehold) and Middlesex respectively. The route runs through Ocean Township, Marlboro, East Brunswick, and is the main thoroughfare for Rutgers University. Much of the route is a freeway. The remainder of the route is an arterial road with traffic lights in the East Brunswick and Old Bridge areas, and a boulevard in the remainder of Piscataway. Route 18 was designated in 1939 as a proposed freeway from Old Bridge to Eatontown. The section west of Old Bridge was formerly designated as part Route S28, a prefixed spur of State Highway Route 28 from Middlesex to Matawan. The designation, assigned in the 1927 renumbering, remained until a second renumbering in 1953. At that point, Route S28 was redesignated as Route 18, though the section from Old Bridge to Matawan was signed as TEMP 18, as this section would be decommissioned when the Route 18 freeway was built.
Route 21 is a state highway in northern New Jersey, running 14.35 mi (23.09 km) from the Newark Airport Interchange with U.S. Route 1/9 (US 1-9) and US 22 in Newark, Essex County to an interchange with US 46 in Clifton, Passaic County. The route is a four- to six-lane divided highway known as McCarter Highway on its southern portion in Newark that serves as a connector between the Newark and Paterson areas, following the west bank of the Passaic River for much of its length. It also serves as the main north–south highway through the central part of Newark, connecting attractions in Downtown Newark with Newark Airport. The portion of Route 21 through Newark is a surface arterial that runs alongside the elevated Northeast Corridor rail line through the southern part of the city and continues north through Downtown Newark while the portion north of Downtown Newark is a freeway. Route 21 intersects many major roads including Interstate 78 (I-78), Route 27, and I-280 in Newark, Route 7 in Belleville, and Route 3 in Clifton.
Route 29 is a state highway in the U.S. state of New Jersey. Signed north-south, it runs 34.76 mi (55.94 km) from an interchange with Interstate 295 (I-295) in Hamilton Township in Mercer County, where the road continues east as I-195, northwest to Route 12 in Frenchtown, Hunterdon County. Between the southern terminus and I-295 in Ewing Township, the route is a mix of expressway and boulevard that runs along the Delaware River through Trenton. This section includes a truck-restricted tunnel that was built along the river near historic houses and Riverview Cemetery. North of I-295, Route 29 turns into a scenic and mostly two-lane highway. North of the South Trenton Tunnel, it is designated the Delaware River Scenic Byway, a New Jersey Scenic Byway and National Scenic Byway, that follows the Delaware River in mostly rural sections of Mercer County and Hunterdon County. The obsolete Delaware & Raritan Canal usually stands between the river and the highway. Most sections of this portion of Route 29 are completely shaded due to the tree canopy. Route 29 also has a spur, Route 129, which connects Route 29 to U.S. Route 1 (US 1) in Trenton.
Route 26 is a state highway in New Jersey, United States, running 2.54 miles (4.09 km) along Livingston Avenue from U.S. Route 1 (US 1) in North Brunswick Township northeast to Nassau Street at the border of New Brunswick. Prior to the 1953 renumbering, the route continued southwest along US 1 to Trenton. Livingston Avenue inside New Brunswick, southwest of Suydam Street, is the 1.08-mile (1.74 km) County Route 691 (CR 691). The 0.39 miles (0.63 km) from Suydam Street to its end at George Street is part of Route 171, also maintained by Middlesex County.
Route 31 is a state highway in New Jersey, United States. It runs 48.93 mi (78.75 km) from U.S. Route 1 Business /US 206 in Trenton, Mercer County, north to an intersection with US 46 in Buttzville in White Township, Warren County. Along the way, Route 31 heads through the communities of Flemington, Clinton, and Washington. Most of the highway is state-maintained; however, the section within the city limits of Trenton is maintained by the city. Much of Route 31 is a two-lane highway that passes through farmland, woodland, and mountainous areas. Two portions of the route—from Trenton to Pennington and from Ringoes to Clinton—consist of more development.
Route 33 is a state highway in the central part of the US state of New Jersey. The highway extends 42.03 miles (67.64 km), from an interchange with U.S. Route 1 (US 1) in Trenton, Mercer County, east to an intersection with Route 71 in Neptune, Monmouth County. Route 33 is a major route through central New Jersey, as it runs from the greater state capital area in the Delaware Valley region, through a mixture of farmland, housing, and commercial developments in the lower Raritan Valley region, en route to the greater Asbury Park area on the Jersey Shore. The route traverses through historic towns such as Hightstown, Monroe, Manalapan, Freehold, and Tinton Falls. There are several intersections on Route 33 with future developments.
Route 37 is a state highway located in Ocean County, New Jersey, United States. The route runs 13.43 mi (21.61 km) from a traffic circle with Route 70 in Lakehurst east to an interchange with Route 35 in Seaside Heights. A two– to six–lane divided highway its entire length, Route 37 serves as the major east–west route through the Toms River area as well as a main route to the Barnegat Peninsula, crossing the Barnegat Bay on the Thomas A. Mathis and J. Stanley Tunney Bridges. The route through Toms River Township is lined with many businesses and named Little League World Champions Boulevard in honor of Toms River East Little League's victory in the 1998 Little League World Series. Route 37 intersects many major roads in the Toms River area, including County Route 527 (CR 527), the Garden State Parkway/U.S. Route 9 (US 9), Route 166, CR 549, and CR 571. The route experiences congestion from both development in the area and from traffic bound for the barrier islands in the summer.
U.S. Route 130 is a U.S. Highway that is a spur route of US 30, located completely within the state of New Jersey. It is signed with north and south cardinal directions, following a general northeast–southwest diagonal path, with north corresponding to the general eastward direction and vice versa. The route runs 83.46 mi (134.32 km) from Interstate 295 (I-295) and US 40 at Deepwater in Pennsville Township, Salem County, where the road continues south as Route 49, north to US 1 in North Brunswick Township, Middlesex County, where Route 171 continues north into New Brunswick. The route briefly runs concurrent with US 30 near Camden, about one-third of the way to New Brunswick. The road runs within a close distance of I-295 south of Bordentown and a few miles from the New Jersey Turnpike for its entire length, serving as a major four- to six-lane divided local road for most of its length. US 130 passes through many towns including Penns Grove, Bridgeport, Westville, Camden, Pennsauken, Burlington, Bordentown, Hightstown, and North Brunswick.
U.S. Route 206 is a 130.23-mile-long (209.58 km) north–south United States highway in New Jersey and Pennsylvania, United States. Only about a half a mile of its length is in Pennsylvania; the Milford–Montague Toll Bridge carries it over the Delaware River into New Jersey, where it connects to the remainder of the route. Its southern terminus is at an intersection with US 30 and Route 54 in Hammonton. The highway's northern terminus is at an intersection with US 209 near Milford, Pennsylvania; some sources and signs show an overlap with US 209 to end at its parent route US 6. For much of its length, US 206 is a rural two-lane undivided road that passes through the Pine Barrens, agricultural areas, and the Appalachian Mountains of northwestern New Jersey, with some urban and suburban areas. The route connects several cities and towns, including Bordentown, Trenton, Princeton, Somerville, Roxbury, Netcong, and Newton. The road is known as the Disabled American Veterans Highway for much of its length.
The Delaware and Raritan Canal is a canal in central New Jersey, built in the 1830s, that connects the Delaware River to the Raritan River. It was an efficient and reliable means of transportation of freight between Philadelphia and New York City, transporting anthracite coal from eastern Pennsylvania during much of the 19th and early 20th centuries. The canal allowed shippers to cut many miles off the existing route from the Pennsylvania Coal Region down the Delaware, around Cape May, and up the occasionally treacherous Atlantic Ocean coast to New York City.
Route 90 is a 3.22-mile-long (5.18 km) freeway in New Jersey in the United States (U.S.). The western terminus is at the Betsy Ross Bridge over the Delaware River in Pennsauken Township, Camden County, where the road continues into Philadelphia, Pennsylvania, as an unnumbered road that provides access to Interstate 95 (I-95). The eastern terminus is an interchange with Route 73 in Cinnaminson Township, Burlington County. It is a four- to six-lane highway its entire length, interchanging with U.S. Route 130 and County Route 644.
Route 175 is a short, 2.95-mile (4.75 km) long state highway in Mercer County, New Jersey, United States. The route runs along a former alignment of Route 29 before the construction of the John Fitch Parkway in the 1960s. The route begins at Route 29 in the capital city of Trenton, running along Sanhican Road, River Road, and West Upper Ferry Road into Ewing Township. The route serves primarily as a frontage road for Route 29. The northernmost portion of Route 175 is parallel to the Delaware and Raritan Canal until coming to an end at a merge with Route 29 in Ewing Township.
Interstate 295 (I-295) in Delaware, New Jersey, and Pennsylvania is an auxiliary Interstate Highway, designated as a bypass around Philadelphia, Pennsylvania, and a partial beltway of Trenton, New Jersey.
Interstate 195 (I-195) is an auxiliary route of the Interstate Highway System located in the US state of New Jersey. Its western end is at I-295 and Route 29 just south of Trenton in Hamilton Township, Mercer County, while its eastern end is at the Garden State Parkway, Route 138, and Route 34 in Wall Township, Monmouth County. I-195 is 34.17 miles (54.99 km) in length. The route is mostly a four-lane highway that mainly runs through agrarian and wooded areas in Central Jersey. It has an interchange with the New Jersey Turnpike (I-95) in Robbinsville Township and serves as a main access road to New Jersey's state capital of Trenton, the Horse Park of New Jersey, the Six Flags Great Adventure amusement park, and the Jersey Shore. I-195 is occasionally referred to as the Central Jersey Expressway. On April 6, 1988, President Ronald Reagan signed H.R. 4263 naming I-195 in New Jersey the James J. Howard Interstate Highway, in honor of the late James J. Howard.
County Route 533 is a county highway in the U.S. state of New Jersey. The highway extends 32.78 miles (52.75 km) from the White Horse Circle, in Hamilton Township to Middlesex CR 607 on the border of Bound Brook and Middlesex Borough. CR 533 shares a long concurrency with U.S. Route 206 through Princeton and Montgomery Township, while portions of the roadway in Somerset County are part of the Millstone River Valley Scenic Byway.
Interstate 95 (I-95) is a major north–south Interstate Highway that runs along the East Coast of the United States from Miami, Florida, north to the Canada–United States border at Houlton, Maine. In the state of Pennsylvania, it runs 51.00 miles (82.08 km) from the Delaware state line near Marcus Hook in Delaware County in the southeastern part of the state northeast to the Delaware River–Turnpike Toll Bridge at the New Jersey state line near Bristol in Bucks County, closely paralleling the New Jersey state line for its entire length through Pennsylvania.
Interstate 895 (I-895) was a planned 6.4-mile-long (10.3 km) auxiliary Interstate Highway in New Jersey and Pennsylvania that would have provided a freeway between I-295 near Burlington in Burlington County, New Jersey, and I-95 near Bristol in Bucks County, Pennsylvania.
U.S. Route 1 (US 1) is a U.S. Route which parallels the East Coast of the United States, running from Key West, Florida, in the south to Fort Kent, Maine, at the Canadian border in the north. Of the entire length of the route, 66.06 miles (106.31 km) of it runs through New Jersey. It enters the state from Pennsylvania on the Trenton–Morrisville Toll Bridge over the Delaware River in the state capital of Trenton, running through the city on the Trenton Freeway. From here, US 1 continues northeast as a surface divided highway through suburban areas, heading into Middlesex County and passing through New Brunswick and Edison. US 1 merges with US 9 in Woodbridge, and the two routes continue through northern New Jersey as US 1/9 to the George Washington Bridge over the Hudson River in Fort Lee. At this point, the road continues into New York City along with I-95.
U.S. Route 1 (US 1) is a major north–south U.S. Route, extending from Key West, Florida, in the south to Fort Kent, Maine, at the Canada–United States border in the north. In the U.S. state of Pennsylvania, US 1 runs for 81 miles (130 km) from the Maryland state line near Nottingham northeast to the New Jersey state line at the Delaware River in Morrisville, through the southeastern portion of the state. The route runs southwest to northeast and serves as a major arterial road through the city of Philadelphia and for many of the suburbs in the Delaware Valley metropolitan area. South of Philadelphia, the road mostly follows the alignment of the Baltimore Pike. Within Philadelphia, it mostly follows Roosevelt Boulevard. North of Philadelphia, US 1 parallels the route of the Lincoln Highway. Several portions of US 1 in Pennsylvania are freeways, including from near the Maryland state line to Kennett Square, the bypass of Media, the concurrency with Interstate 76 and the Roosevelt Expressway in Philadelphia, and between Bensalem Township and the New Jersey state line.
U.S. Route 202 (US 202) is a U.S. Highway running from New Castle, Delaware northeast to Bangor, Maine. In the U.S. state of New Jersey, the route runs 80.31 mi (129.25 km) from the New Hope–Lambertville Toll Bridge over the Delaware River at the Pennsylvania border in Delaware Township, Hunterdon County near Lambertville northeast to the New York border in Mahwah, Bergen County. Along the route's journey, it passes through a variety of suburban and rural environments, including the communities of Flemington, Somerville, Morristown, Parsippany-Troy Hills, Wayne, and Oakland as well as five counties: Hunterdon, Somerset, Morris, Passaic, and Bergen. US 202 encounters many major roads in New Jersey, including Route 31, US 206, US 22, Interstate 80 (I-80), US 46, Route 23, and Route 17. From Somerville to the New York border, US 202 generally runs within a close distance of I-287 and interchanges with that route several times. The road ranges from a four-lane freeway between Lambertville and Ringoes in Hunterdon County to a two-lane surface road through much of the northern portion of the route. North of the Route 53 intersection in Morris Plains, US 202 is maintained by individual counties rather than the New Jersey Department of Transportation with a few exceptions.
Route 29 in Hamilton Township
US 206 in Trenton 
US 1 in Trenton
