Northeast Corridor Line
| Company type | Commuter rail route |
|---|---|
| Industry | Rail transport |
| Predecessor | Pennsylvania Railroad commuter trains |
| Founded | 1983 |
| Headquarters | New Jersey , United States |
Area served | New Jersey, New York |
| Products | Commuter rail service |
| Owner | NJ Transit |
The Northeast Corridor Line operates as a commuter rail route managed by NJ Transit, running between Trenton Transit Center and New York Penn Station along the Amtrak Northeast Corridor in the United States. This service is the successor to the commuter trains once run by the Pennsylvania Railroad and represents NJ Transit's most heavily utilized rail line. Upon reaching New York Penn Station, some trains head back to New Jersey, while others proceed to Sunnyside Yard for storage purposes. The majority of maintenance activities are carried out at Morrisville Yard, located near Trenton.
As of April 27, 2025, the schedule includes 131 trains on weekdays, with 68 inbound and 63 outbound trips. Inbound trains originate primarily from Trenton (49), followed by Jersey Avenue (12), New Brunswick (4), and single departures from Metropark, Newark Airport, and Newark Penn Station. Outbound, 13 trains end their routes at Jersey Avenue, while 50 terminate at Trenton. Stations situated north of Metropark are also served by the North Jersey Coast Line.
On NJ Transit’s system maps, the Northeast Corridor Line is depicted in red and identified by the New Jersey State House icon. This line provides connections to the Princeton Branch shuttle service and links with SEPTA's Trenton Line, which operates between Philadelphia and Trenton.
19th century
Rail service along what is now the Northeast Corridor commenced during the 1830s, with trains originally terminating at the Pennsylvania Railroad’s terminal located at Exchange Place in Jersey City, New Jersey. This terminal served as the PRR network’s endpoint for much of the nineteenth century.
In December 1855, a second track was extended from Elizabethtown to Rahway, removing previous single-track constraints. By April 1859, contracts were authorized and construction began to install a second track between New Brunswick and Rahway. Completion came by November 1859, allowing continuous double-track operation from New Brunswick all the way to Jersey City.
By June 1873, efforts were underway by PRR to expand from two tracks to four between Rahway and Elizabeth to increase line capacity. Two additional tracks became operational between Rahway and Linden by September of that year, with further expansion progressing toward Waverly.
By March 1882, four-track infrastructure was completed between Houtenville and South Elizabeth, including a newly constructed four-track bridge over the Rahway River. Additional improvements included renaming Uniontown station to Iselin and commissioning the PX interlocking tower at Perth Amboy Junction.
By 1885, except for certain segments passing through Trenton, New Brunswick, Elizabeth, and Newark, the corridor featured four tracks throughout from Trenton to Jersey City. This upgrade substantially boosted both capacity and operational efficiency.
20th century
The opening of Penn Station in 1910 primarily served long-distance rail services; meanwhile, steam-powered commuter trains continued utilizing the older Jersey City terminal.
On May 10, 1914, the DX signal tower at Rahway became operational alongside completion of elevated tracks 3 and 4 between Colonia and North Rahway. A new Linden station also opened with northbound tracks commencing service on July 9 of that year. By 1915, six tracks were installed between South Elizabeth and Colonia, including grade separations in Rahway and Linden. The westbound platforms at Rahway were finished on July 11, accompanied by a flying junction connecting to the Perth Amboy Branch and a new Rahway station completed on December 1.
In late 1929, PRR’s board approved plans to extend fifth and sixth tracks between "LANE" and "ELMORA" interlockings while widening the right-of-way from Elizabeth to Trenton. A $1.75 million project for a new Trenton station was announced but subsequently canceled in early 1930 due to economic downturn caused by the Great Depression.
Track realignments in 1930 aimed at operational improvements involved relocating eastbound track 1 near Rahway and straightening curves between "UNION" and Colonia. However, plans to widen tracks between "LANE" and "ELMORA" were abandoned in July because of high costs associated with property acquisition.
Electrification introduced direct commuter train service from Trenton to Manhattan beginning in 1933. The three westernmost tracks at Newark’s Pennsylvania Station opened in March 1935 concurrently with replacement of an aging swing bridge by a three-track lift Dock Bridge and activation of the "DOCK" tower.
In June 1940, PRR authorized construction of a new waiting room and concrete platform at Rahway station. By September 1951, weekday schedules featured numerous trains departing from New York City and Jersey City terminating at either Trenton or New Brunswick alongside longer-distance routes.
During the 1960s financial difficulties compelled Pennsylvania Railroad to depend on funding from the New Jersey Department of Transportation (NJDOT) for commuter operations. NJDOT financed construction of Metropark station in 1968 as well as procurement of thirty-five stainless steel "Jersey Arrow" multiple-unit cars in 1969.
Following Penn Central’s merger in 1968 and subsequent bankruptcy proceedings, Conrail took over commuter rail operations under contract with NJDOT starting in 1976. The state continued upgrading rolling stock with Arrow II and Arrow III model cars. In 1983, NJ Transit assumed full control by acquiring all Conrail commuter lines including the Northeast Corridor Line.
Clockers
Clocker services were originally launched by the Pennsylvania Railroad, operating between Philadelphia and New York City. These trains departed every hour on weekdays throughout the day until the 1950s, which led to the "Clocker" nickname. Following Amtrak's takeover of the Northeast Corridor, the focus of these trains shifted toward serving commuters by stopping at local stations that were bypassed by the faster Metroliner and other named services.
In the 1990s, NJ Transit entered an agreement with Amtrak allowing holders of monthly NJ Transit passes to ride on Clocker trains. Over time, the service primarily catered to NJ Transit commuters, providing a more comfortable and quicker alternative compared to standard NJ Transit trains, though it was slower and more crowded than Amtrak’s premium offerings. This resulted in varying preferences among passengers.
As most passengers traveled using NJ Transit tickets, NJ Transit supplied ALP-46 locomotives to pull the Amfleet coaches on these trains. Eventually, Amtrak discontinued the Clocker service and sold the slots to NJ Transit for new express trains running to Trenton. The final Clocker train ran on October 28, 2005, after which NJ Transit increased express service between Trenton and New York City.
Service
During rush hours, stations located between North Elizabeth and Rahway are predominantly served by North Jersey Coast Line trains. Between Rahway and New Brunswick, service is provided by Jersey Avenue Locals that start and end at Jersey Avenue station in New Brunswick. Trenton Express trains make their first or last stops at Princeton Junction or New Brunswick. A limited number of all-stop local trains operate intermittently on weekdays and throughout weekends. Outside peak times, Jersey Avenue Locals cover local stops between Rahway and Elizabeth. Most Northeast Corridor Line trains skip North Elizabeth station; additionally, eastbound trains do not stop at Jersey Avenue.
This route constitutes the central portion of Amtrak's Northeast Corridor, with all eleven Amtrak Northeast Corridor services running along it. Stations such as New York Penn, Newark Penn, and Trenton rank among Amtrak’s busiest hubs; connections are also accessible at Newark Liberty International Airport, Metropark, New Brunswick, and Princeton Junction. The segment between Trenton and New York City is one of the busiest rail corridors in North America due to frequent service from both Amtrak and NJ Transit.
Ridership
The Northeast Corridor Line holds the distinction as New Jersey Transit's most heavily used rail route, serving one of the most densely populated areas in the United States. In 2012, this line recorded an average weekday boarding figure of 117,400 passengers. It also includes some of NJ Transit's top non-terminal stations in terms of ridership: Metropark (7,447 boardings), Princeton Junction (6,816), Trenton (4,638), and New Brunswick (4,976).
Rolling stock
Northeast Corridor Line operations rely on electric overhead catenary power. During peak periods, Budd/GE Arrow III multiple units are commonly used, with typically one or two sets running on weekends. Throughout all service hours, push-pull trains powered by electric ALP-46 or dual-mode ALP-45DP locomotives haul consists made up of Comet series or Bombardier MultiLevel coaches.
Line improvements
Since New Jersey Transit Rail Operations assumed control from Conrail in 1983, numerous upgrades have been implemented to enhance overall service quality.
Morrisville Yard
In 2007, NJ Transit inaugurated the Morrisville Yard in Pennsylvania, consisting of 19 tracks and situated on the site formerly occupied by the Pennsylvania Railroad's freight classification yard. This facility replaced various dispersed storage tracks near Trenton Station, significantly enhancing train storage capabilities and minimizing the need for relay movements. Access to the yard is provided through a flying junction, which prevents trains from crossing mainline tracks when entering storage areas.
Trenton Transit Center
Serving as the starting point for NJ Transit’s Northeast Corridor segment, the Trenton Transit Center also functions as the terminus for SEPTA's Trenton Line. It is a major stop for Amtrak services including the Acela, Northeast Regional, Keystone Service, and most medium- to long-distance trains along the Northeast Corridor.
In 2004, a nearby River Line light rail station commenced operations, connecting this corridor to Camden and Burlington County without extending into Pennsylvania. Following a comprehensive renovation in 2008 that replaced the original 1960s headhouse and concourse, the station was renamed Trenton Transit Center. The upgrade expanded passenger areas and retail space.
Hamilton station
Located in Hamilton Township, Hamilton Station opened in 1999 with an initial investment of $30 million (1992 dollars). Its close proximity to Interstate 295 provides nearly direct highway access and initially offered 1,556 parking spaces designed for park-and-ride commuters. Due to strong demand from travelers coming via Interstate routes from southern New Jersey and Pennsylvania, a parking garage was added in 2007, increasing total capacity by 2,066 spaces to 3,622. The station incorporates artistic elements inspired by the nearby Grounds for Sculpture park.
Hamilton Station played a critical role in easing severe parking constraints faced by Trenton and Princeton Junction stations. Trenton’s downtown facility suffers from limited parking and accessibility issues, while Princeton Junction lacks direct highway connections and was at full parking capacity. Designed primarily for commuters traveling longer distances to New York City, Hamilton’s freeway access combined with its extensive parking facilities has made it one of NJ Transit’s busiest stops. The redevelopment of the adjacent American Standard factory into transit-oriented development has further stimulated ridership growth. Additionally, a new NJ Transit bus garage was built on-site to replace older bus facilities that previously served NJ Transit and Mercer Metro in Trenton.
Metropark station
The Metropark station was developed by the New Jersey Department of Transportation in 1968 to accommodate businesses and commuters relocating from urban centers due to suburban expansion. Opening in 1971 next to the Garden State Parkway, it offered convenient automobile access; this led to the closure of nearby stations at Iselin and Colonia. Designed with the Metroliner service in mind, Metropark features high-level platforms integrated with an adjacent business park, making it a destination beyond just a transit stop. During the 1980s, new crossovers were installed on both sides of the station to enable express trains traveling on inner tracks to serve its two side platforms.
Newark Airport station
Newark Liberty International Airport Station was created in partnership with the Port Authority of New York and New Jersey, which operates Newark Liberty International Airport. Since its opening in late 2001, the station has provided a connection to AirTrain Newark, the airport’s monorail system. Featuring two island platforms, it expanded the corridor by adding two tracks on each side, bringing the total number of tracks to six. This expansion allows certain NJT express and Amtrak trains to bypass local stops. The station is designed exclusively as a transfer point between trains and the monorail, with no pedestrian entrances, bus connections, parking facilities, or designated drop-off zones. Plans to extend PATH service to this location were suspended in 2023.
Kearny and Waterfront Connections
The Waterfront Connection, inaugurated in 1991, connects eastbound services from the former PRR Northeast Corridor to the ex-DL&W Morris and Essex Lines heading toward Hoboken Terminal. Although no Northeast Corridor trains have served Hoboken since 2010, some peak-hour North Jersey Coast Line trains utilize this connection for transfers. Otherwise, passengers depend on PATH for transit between these lines. The Kearny Connection, which opened in 1996, permits eastbound travel from ex-DL&W routes onto ex-PRR tracks. Many Morristown Line trains now use this route to reach New York Penn Station.
Secaucus Junction
Since its opening in 2003, Secaucus Junction has functioned as a crucial transfer point within New Jersey Transit’s network. Positioned where the Corridor intersects the Main/Bergen/Port Jervis lines, it enables passengers traveling toward Hoboken to switch onto trains bound for New York Penn Station and vice versa. Additionally, this station offers transfers to the Meadowlands Rail Line, providing access to MetLife Stadium.
North Brunswick station
Approval for a new station at North Brunswick on the NEC came from New Jersey Transit Rail Operations in 2013. The project advanced in 2017 when the New Jersey Legislature allocated $50 million through the New Jersey Transportation Trust Fund. In 2019, oversight transitioned to the Middlesex County Improvement Authority, marking NJT’s first partnership with a county agency on such a project. Initial funding was secured by October 2020. A contract for design and engineering was awarded to WSP USA in late 2021, with agreement on station location and design reached by January 2022. By year-end 2022, NJT had approved 10% of the conceptual design phase. Renderings were released in February 2023, with construction bids anticipated by late 2025.
Mid-line loop
NJT currently dispatches peak-period trains bound for New York from the Jersey Avenue stop in New Brunswick. Plans formulated by NJT as of 2013 include constructing a flying junction and a balloon loop, known as the Mid-Line Loop, situated south of the proposed North Brunswick station. This infrastructure would allow trains to reverse direction and re-enter the Northeast Corridor without crossing opposing tracks.
County Yard "train haven"
In January 2014, NJT awarded a $7.64 million contract for designing a "train haven" alongside a re-inspection facility at an expanded County Yard in New Brunswick. This development is intended to provide secure storage for rail equipment during extreme weather events, addressing flood-related vulnerabilities revealed after Hurricane Sandy.
Stations
| State | Zone |
Location | Station | Distance (km) | Opening Date | Closure Date | Connections / Remarks |
|---|---|---|---|---|---|---|---|
| NY | 1 | Manhattan | New York Penn Station Template:NJT acc | 0.0 (0.0) | 1910 | Template:Rint Amtrak (long-distance): Cardinal, Crescent, Lake Shore Limited, Palmetto, Silver Meteor Template:Rint Amtrak (intercity): Acela, Adirondack, Carolinian, Empire Service, Ethan Allen Express, Keystone Service, Maple Leaf, Northeast Regional, Pennsylvanian, Vermonter Template:Rint Long Island Rail Road branches Template:Rint NJ Transit Rail lines Template:Rint New York City Subway: Broadway-Seventh and Eighth Avenue Lines Template:Rint New York City Bus and private bus services | |
| NJ | Secaucus | Secaucus Junction Template:NJT acc | 4.9 (8.0) | December 15, 2003 | Template:Rint NJ Transit Rail lines Template:Rint Metro-North Railroad: Port Jervis Line Template:Rint NJ Transit Bus routes | ||
| Newark | Newark Penn Station Template:NJT acc | 10.0 (16.1) | March 24, 1935 | Template:Rint Amtrak long-distance and intercity services Template:Rint NJ Transit Rail: North Jersey Coast and Raritan Valley lines Template:Rint PATH system Newark Light Rail NJ Transit Bus and Greyhound Lines | |||
| South Street | 11.0 (17.7) | circa 1904 | 1974–76 | ||||
| Newark Liberty International Airport Station Template:Rint Template:NJT acc | 12.6 (20.3) | October 21, 2001 | Amtrak: Keystone Service, Northeast Regional NJ Transit Rail: North Jersey Coast Line AirTrain Newark | ||||
| 5 | Elizabeth | Template:Njts Template:NJT acc | 14.4 (23.2) | NJ Transit Rail: North Jersey Coast Line NJ Transit Bus routes | |||
| Template:Njts Template:NJT acc | 15.4 (24.8) | December 21, 1835 | |||||
| South Elizabeth | 16.1 (25.9) | 1974–76 | |||||
| 7 | Linden | Template:Njts Template:NJT acc | 18.6 (29.9) | ||||
| 8 | Rahway | "North Rahway" | "20.1 (32.3)" | Closed due to maintenance issues | |||
| "Rahway" Template:NJT acc | "20.7 (33.3)" |
NJ Transit Rail: North Jersey Coast Line; NJ Transit Bus routes; Rahway Community Shuttle | |||||
| "9" | "Iselin" | "Colonia" | "22.8 (36.7)" | "1876" | "1974–76" | "Originally opened as 'Houtenville'" | |
| "Iselin" | "24.0 (38.7)" | "June 11, 1972" | |||||
| 10 | "Metropark" Template:NJT acc | "24.6 (39.6)" | "November 14, 1971" |
Amtrak: Acela, Crescent, Keystone Service, Northeast Regional, Vermonter; NJ Transit Bus routes | |||
| "Menlo Park" | "Menlo Park" | "25.4 (40.9)" | "Early 1957" | ||||
| 11 | Metuchen" | "Robinvale" | "1911" | "Destroyed by fire March 27, 1915" | |||
| "Metuchen" Template:NJT acc | "27.1 (43.6)" | "July 11, 1836" |
NJ Transit Bus routes; Metuchen Community Shuttle | ||||
| "13" | "Edison" Template:NJT acc | "30.3 (48.8)" | "circa 1870" |
Edison Community Shuttle | |||
| 14 | New Brunswick" | "New Brunswick" Template:NJT acc | "32.7 (52.6)" | "January 1, 1838" |
Amtrak: Keystone Service, Northeast Regional; NJ Transit Bus routes; local shuttles and campus buses | ||
| "Jersey Avenue" | "34.4 (55.4)" | "October 24, 1963" | |||||
| 19 | North Brunswick" | "Adams" | "36.8 (59.3)" | "December 3, 1967" | |||
| "North Brunswick station" | Planned station location | ||||||
| South Brunswick" | "Deans" | December 3, 1967" | |||||
| "Monmouth Junction" | December 3, 1967" | ||||||
| Plainsboro" | "Schalks Crossing" | 1914" | |||||
| "Plainsboro" | late 1910s" | May 29, 1962"; demolished in 1968 | |||||
| "West Windsor" | "Princeton Junction" Template:NJT acc | "48.4 (77.9)" | "November 23, 1863" |
Amtrak: Keystone Service, Northeast Regional; NJ Transit Princeton Branch; NJ Transit Bus routes | |||
| 20 | "Lawrence Township" | "Lawrence" | "52.5 (84.6)" | "1865" | 1935 | ||
| "Hamilton Township" | "Hamilton" Template:NJT acc | "54.4 (87.5)" | "February 16, 1999" |
NJ Transit Bus routes | |||
| '22' | 'Trenton' | 'Trenton Transit Center' Template:NJT acc | '58.1 (93.5)' | 'April 20, 1863' |
Amtrak long-distance and intercity services; SEPTA Trenton Line; NJ Transit River Line; NJ and SEPTA bus routes |
Bibliography
- Hart, William. Plainsboro in Pictures. Arcadia Publishing, Mount Pleasant, SC, 2003. ISBN 978-0-7385-1168-9
- Pattison, Mary. Yesterday in Colonia: A Biographical Account of a Small Community. Little & Ives, 1949
- Wall, John Patrick. Middlesex County, New Jersey: A History, 1664–1920, Volume 1. Lewis Historical Publishing Company, 1921
External links
- New Jersey Transit – Northeast Corridor Line timetable (April 2025; 554 KB)