MARC Train
| Company type | Public transit |
|---|---|
| Industry | Commuter rail |
| Founded | 1984 |
| Founder | Maryland Transit Administration |
| Headquarters | Maryland , United States |
Area served | Washington–Baltimore metropolitan region |
| Products | Commuter rail services (Penn Line, Camden Line, Brunswick Line) |
| Owner | Maryland Transit Administration (MTA) |
| Parent | Maryland Transit Administration |
The Maryland Area Rail Commuter (MARC) system serves the Washington–Baltimore metropolitan region as a commuter rail network. Managed by the Maryland Transit Administration (MTA), MARC's operations are carried out under contract by Alstom and Amtrak, utilizing rail lines owned by CSX Transportation (CSXT) and Amtrak. In , MARC's yearly ridership reached , with approximately weekday passengers recorded as of , reflecting a decline from the pre-pandemic figure of 40,000.
Spanning 187 miles with 42 stations, MARC runs three distinct lines, including the nation's fastest commuter rail service on its Penn Line, where trains can achieve speeds up to . This system plays an essential role in regional transit by linking key commercial centers and facilitating commuter travel between Maryland and Washington, D.C.
Operations
MARC operates three routes extending from Union Station in Washington, D.C.:
- Penn Line – 58 trains on weekdays
- Camden Line – 21 trains on weekdays
- Brunswick Line – 18 trains on weekdays
Only the Penn Line provides weekend service, with 18 trains running on Saturdays and 12 on Sundays. Service levels are reduced or halted on select federal holidays.
All MARC trains utilize push–pull configurations, typically positioning the cab car nearest to Washington to reduce diesel emissions near Union Station. Train consists vary from 3 to 5 cars for most runs, extending up to 10 cars during rush hours on the Penn Line. Shorter trains generally consist entirely of either single-level or bilevel cars, while longer consists combine both types.
Amtrak handles operations and upkeep for the Penn Line, whereas Alstom is responsible for the Brunswick and Camden Lines.
Penn Line
The Penn Line covers along Amtrak's Northeast Corridor, connecting Washington, D.C., to Perryville, Maryland, passing through Baltimore Penn Station. Most services operate across a stretch between Washington and Baltimore Penn Station, with limited trips extending to Martin State Airport and Perryville. As North America's fastest commuter rail route, its rolling stock can reach speeds up to . Originating from Pennsylvania Railroad commuter services, it is MARC's busiest line, transporting nearly twice the number of passengers and running twice as many trains as the combined total of the other two lines. The Penn Line is also unique for being fully electrified and offering weekend schedules.
Camden Line
The Camden Line operates over on tracks owned by CSX between Washington, D.C., and Baltimore’s Camden Station. It traces its roots back to Baltimore & Ohio (B&O) commuter services beginning in 1830, making it one of the longest continuously running passenger rail lines in the United States.
Brunswick Line
The Brunswick Line travels along CSX-owned tracks from Washington, D.C., to Martinsburg, West Virginia, with a branch line extending to Frederick, Maryland. This line developed from B&O commuter routes that connected Washington with its northern and western suburban areas.
Dedicated Western Maryland Service
MARC offers special weekend train services linking Cumberland, Maryland with the Washington–Baltimore region. These trips are designed to accommodate residents of Western Maryland attending sports events and to bolster tourism in the area.
Connections to Other Transport Modes
The majority of MARC stations provide transfers to local bus networks or Metrobus routes. Major transfer points such as Washington Union Station, New Carrollton, College Park, Greenbelt, Silver Spring, and Rockville offer access to the Washington Metro. In Baltimore, Penn Station and Camden Station serve as connections to the Baltimore Light RailLink. Although not directly integrated, the Baltimore Metro SubwayLink's State Center station lies close to Baltimore Penn Station. Stations including Washington Union, Baltimore Penn, BWI Airport, Aberdeen, New Carrollton, Rockville, Harpers Ferry, and Martinsburg also accommodate Amtrak services; additionally, Union Station connects with the Virginia Railway Express.
Early Development
The three MARC lines trace their origins back to railroads established in the 19th century. The Baltimore and Ohio Railroad (B&O) began operations between Baltimore and Ellicott City on May 24, 1830—this route now forms part of the Camden Line. Service between Baltimore and Washington by B&O commenced on August 25, 1835.
The B&O main line was extended incrementally: reaching Frederick Junction in 1831 (branching toward ), in 1832, in 1834, and finally in 1842. The completion of the Metropolitan Branch in 1873 redirected most traffic from Martinsburg and Frederick toward Washington via this corridor, laying the groundwork for what is now known as the Brunswick Line.
The Philadelphia, Wilmington and Baltimore Railroad (PW&B) completed its Baltimore-to-Philadelphia connection by December 1838. Although B&O initially dominated travel between Baltimore and Washington, competition arose when the Pennsylvania Railroad-owned Baltimore and Potomac Railroad (B&P) introduced a rival line in 1872. Following a stock dispute with B&O, PRR acquired PW&B in 1881. PW&B then operated PRR’s through service—precursor to today’s Penn Line—between Washington and Philadelphia alongside B&P. In 1884, PRR terminated B&O’s trackage rights over PW&B and opened a parallel route two years later. By 1902, PW&B and B&P had merged into PRR’s Philadelphia, Baltimore and Washington Railroad.
B&O ended local service on the Frederick Branch in November 1949. By 1958, all B&O passenger operations between Baltimore and Philadelphia had ceased; local service out of Washington was confined to Camden Station. While B&O continued local Brunswick Line service alongside long-distance routes, PRR operated both local and intercity trains on the Northeast Corridor, discontinuing local service north of Baltimore around 1964.
Transition to Public Management
Passenger rail usage declined mid-century due to automobile popularity despite ongoing suburban commuting patterns. In 1968, PRR merged into the Penn Central, which assumed its passenger services. On May 1, 1971, Amtrak took over most intercity passenger routes including some operated by Penn Central. Meanwhile, B&O and Penn Central maintained Washington–Baltimore and Washington–Brunswick commuter runs without subsidies.
Amtrak initially operated the Washington–Parkersburg West Virginian, later renamed Potomac Special. This was reduced on May 7, 1973 to a commuter trip between Washington and Cumberland called the Blue Ridge. Facing financial losses in early 1974, B&O threatened to discontinue its unsubsidized commuter services. Consequently, on March 1, 1974, the Maryland Department of Transportation (MDOT) began subsidizing half of B&O's Washington–Brunswick and Washington–Baltimore operations—the first state-supported commuter rail service into Washington. In 1975 Maryland formalized an agreement with B&O providing equipment and covering operational deficits. Amtrak introduced the Washington–Cincinnati Shenandoah on October 31, 1976 while shortening the Blue Ridge route to run between Washington and Martinsburg. Toward the late 1970s West Virginia started funding shuttle services from Brunswick to Martinsburg operated by B&O; these were integrated with Brunswick Line trains to qualify for federal subsidies. MDOT acquired 22 former PRR coaches for use on B&O lines in December 1981. The Maryland State Railroad Administration (SRA) was established in 1986 to oversee contracts, rolling stock procurement, and management of short line railroads.
On April 1, 1976 Conrail took over unsubsidized ex-PRR Baltimore–Washington service from Penn Central. After Conrail threatened discontinuation in April 1977, MDOT began subsidizing this service. Prior to 1978 most Baltimore–Washington trains ran with aging MP54 electric multiple units dating from the original electrification in 1933. In that year Amtrak and Baltimore collaborated with New Jersey DOT to lease new Arrow cars replacing MP54s. Supported by Pennsylvania and Maryland funding, Amtrak launched a Philadelphia–Washington commuter train named Chesapeake on April 30, 1978—marking commuter service north of Baltimore for the first time since the early ’60s.
BWI Rail Station opened on October 26, 1980 serving both Amtrak and Conrail trains. Conrail trains began stopping at Capital Beltway station in August 1982 while stations at , , were closed. Two additional daily round trips were introduced July 5, 1983—one peak-direction trip plus a reverse commute for Baltimore riders. On October 30 that year Amtrak and MARC relocated from Capital Beltway station to a new platform at New Carrollton station, connected since 1978 with Washington Metro services. On April 30, 1984 Edmondson Avenue and Frederick Road stops in Baltimore were replaced by West Baltimore station.
In response to growing ridership MDOT installed highway signage guiding drivers to commuter rail stations starting in 1981. The Northeast Rail Service Act of that year allowed Conrail to divest commuter operations by focusing on freight by January 1983. Public agencies such as Metro-North Railroad, NJ Transit, and SEPTA Regional Rail assumed responsibility for Conrail’s Northeast commuter lines at that time. MDOT began contracting Amtrak for operation of ex-PRR Washington–Baltimore runs under the AMDOT brand (Amtrak Maryland Department of Transportation). Due to low patronage overlapping with MDOT-subsidized routes Amtrak discontinued Chesapeake service in October 1983.
In 1984 SRA consolidated its three state-subsidized lines under the MARC brand—originally Maryland Rail Commuter but later interpreted as Maryland Area Rail Commuter—standardizing schedules and crew uniforms while retaining operational control. The lines were named Penn Line, Camden Line, and Brunswick Line.
Service Enhancements
In October 1986 MARC trialed an Amtrak-built AEM-7 locomotive aimed at replacing Arrow cars with modern push–pull trainsets. On February 27, 1989 weekday round trips between Washington and Baltimore increased from seven to thirteen coinciding with opening a new park-and-ride facility at Template:Marc, which replaced the older Bowie station. Two additional round trips followed in May that year.
Service extended northward from Baltimore to Template:Marc on May 1, 1991 adding stops at Template:Marc, Template:Marc, and Template:Marc stations. Between 1988 and 1993 daily trips grew from thirty-four to seventy. In 1995 Odenton station expanded parking capacity by adding eight hundred spaces.
From late ’80s through mid-’90s Camden Line ridership surged alongside station improvements. A new Template:Marc station opened July 31, 1989; MARC began serving Greenbelt station on May 3, 1993—preceding Metro's arrival there by several months. Midday service expanded January 31, 1994 on Camden and Brunswick Lines; new Laurel Race Track station opened easing parking pressures at nearby Laurel station while Berwyn station closed due to low use. Muirkirk station launched December 12, 1994 reducing congestion along Route 1 corridor near Laurel. A $1.2 million project added six hundred parking spaces at Savage station in 1996; Elkridge station closed that July replaced by larger Dorsey station featuring dedicated access to Route 100.
Following its merger into CSX Transportation on April 30, 1987 B&O's Camden and Brunswick Line services continued under CSX management. MARC opened Metropolitan Grove station—the first new stop along Brunswick Line in over one hundred years—on July 6 that same year.
Silver Spring Collision of 1996
During Friday evening rush hour on February 16, 1996 an eastbound Brunswick Line MARC train collided head-on with a westbound Amtrak Capitol Limited near Silver Spring Maryland resulting in eleven fatalities aboard the MARC train including engineer Ricky Orr; conductors Jimmy Major Jr., Jim Quillen; plus eight Jobs Corps students riding onboard. Most deaths resulted from post-collision fire after MARC’s control car struck Amtrak lead locomotive’s fuel tank.
The NTSB investigation concluded MARC crew likely missed a signal approaching after a flag stop at Kensington station while operating push mode with cab control car leading forward. The Amtrak locomotives were crossing over tracks when impact ruptured fuel tank of F40PH #255 igniting fatal fire; a second newer locomotive’s tank sustained less damage due to improved shielding measures installed previously during signaling upgrades in 1992 which might have prevented accident had human factors been considered then.
Controversy Over Operations Contracting
In June 2010 MTA sought proposals for a new operations and maintenance provider for Camden and Brunswick Lines replacing incumbent CSX Transportation. French-based Keolis—the operator of Virginia Railway Express—was sole bidder prompting suspension of procurement process due to lack of competition.
Maryland legislature then enacted a law requiring Keolis’ parent company SNCF disclose involvement in Holocaust deportations before bidding—a measure advocated by survivor groups seeking transparency. Keolis/SNCF asserted prior compliance with documentation requests.
By mid-2011 uncertainty persisted over Keolis’ eligibility amid critiques from The Washington Post highlighting conflicts between Maryland’s disclosure law versus French legal constraints risking constitutional challenges plus jeopardizing federal transit funding for state programs.
MTA reissued a request for proposals July 2011 seeking nearly six-year contract with optional five-year extension option. Ultimately Bombardier Transportation secured $204 million contract award October 2012 ending Keolis dispute while CSX continued interim operations during transition period. Bombardier exercised five-year renewal option in 2018; following Alstom’s acquisition of Bombardier in 2021 Alstom obtained $401 million five-year contract award April 2023 including two additional five-year extensions possible thereafter.
Rolling stock
The tables below provide an overview of MARC's current and previous rolling stock.
Locomotives
| Manufacturer | Model | Quantity | Unit Numbers | Image | Remarks |
|---|---|---|---|---|---|
| EMD | GP39PH-3C | 6 | 70–75 | Introduced in 1988; rebuilt to GP39PH-3C configuration in 2023. | |
| GP40PH-2A | 1 | 4145 | Acquired from New Jersey Transit in 2018. | ||
| GP40WH-2 | 1 | 68 | Entered service in 1992; designated for non-revenue and emergency tasks. | ||
| Bombardier– Alstom | HHP-8 | 6 | 4910–4913, 4915 |
Began operation in 1998; top speed of 125 mph; refurbished between 2017 and 2018. Unit 4914 retired for spare parts. | |
| MPI | MP36PH-3C | 26 | 10–35 |
Introduced from 2009 to 2011; replaced the GP40WH-2 models. | |
| Siemens | Charger SC-44 | 8 | 80–87 | Commenced service in 2018; replaced AEM-7 units; maximum speed of 125 mph. |
| Manufacturer | Model | Quantity | Unit Numbers | Image | Remarks |
|---|---|---|---|---|---|
| EMD/ASEA | AEM-7 | 4 | 4900–4903 |
Superseded by Siemens SC-44 Chargers; currently stored awaiting disposal. | |
| EMD | GP40WH-2 | 19 | 51–67, 69 |
Replaced by MP36PH-3Cs; multiple units rebuilt or sold to operators such as SunRail and PNLX; unit 68 kept for non-revenue purposes; unit 69 transferred to CSX as #9969. | |
| E9AM | 10 | 60–69 |
Originally E8As, ex-Burlington Northern/Metra units. | ||
| F9PH | 5 | 81–85 |
Former Baltimore and Ohio Railroad units; rebuilt from F7 locomotives by Morrison-Knudsen. | ||
| F7 APCU | 1 | 7100 |
Converted B&O F7 #4553 into an APCU with head-end power generator; preserved at the B&O Railroad Museum and utilized on excursion trips. |
Passenger cars
| Manufacturer | Model | Quantity | Delivery Period | Car Numbers | Image | Remarks |
|---|---|---|---|---|---|---|
| Sumitomo/Template:ZwspNippon Sharyo | MARC IIA | 16 coaches | 1985–1987 | 7700–7715 | Cars numbered 7710 to 7713 serve as "Bike Cars," equipped with racks for sixteen bicycles and seating for twenty-two passengers. Car number 7709 was destroyed in the 1996 Silver Spring accident | |
| MARC IIB | 28 coaches | 1991–1993 | 7716–7735, 7791–7799 | Refurbished between 2009 and 2011 by Bombardier; car number 7720 lost in the 1996 Maryland train collision | ||
| 6 cab cars | 7757–7762 | |||||
| Kawasaki | MARC III | 49 coaches | 1999–2001 | 7800–7834, 7870–7876, 7890–7896 | Underwent overhaul from 2018 to 2020 by Bombardier; numbers 7826–7834 and 7855–7858 are former VRE cars acquired in the year 2000, obtained by MARC in 2008. | |
| 14 cab cars | 7845–7858 |
| Manufacturer | Model | Quantity | Delivery Period | Car Numbers | Image | Remarks |
|---|---|---|---|---|---|---|
| Budd | RDC | 16 | '1984 | '1,3,8,9,11,12,20,22,23,800,9801,9802,9805,9918,9921,9941 | 'Self-propelled cars inherited from various railroads. | |
| 'MARC I | '22 | '1984 | '100–114,130–134,140–149,150–154,160–169,190–191 | 'Single-level coaches formerly operated by the Pennsylvania Railroad, Norfolk and Western Railway, NJ Transit Rail Operations, and SEMTA Commuter Rail; some units preserved or sold privately. | ||
| 'Sumitomo Corporation/Nippon Sharyo | 'MARC IIA | '11 | '1985–1987 | 'Cabs:7745–7756 | 'Single-level coaches with unit number 7752 destroyed in the Silver Spring accident of 1996. Stored since the year 2020. | |
| 'Pullman Company | 'Gallery cars | '12 | '2004 | '7900–7911 | 'Previously Metra bilevel coaches primarily used on the Brunswick Line; replaced by Bombardier MARC IV coaches in early 2015 and returned to Metra. |
2007 Strategy
During the early 2000s, MARC experienced a significant increase in passenger numbers, bringing the system close to its maximum capacity. Due to population growth and the BRAC initiative that brought employment opportunities to Aberdeen Proving Ground and Fort Meade, Maryland prioritized expanding transit services. In September 2007, MTA Maryland introduced a comprehensive 30-year plan aimed at enhancing capacity and operational flexibility, although funding had yet to be secured. The main proposals included:
- Procuring 54 Bombardier MultiLevel railcars to replace outdated single-level rolling stock.
- Launching weekend operations on the Penn Line starting December 7, 2013, providing service between Baltimore and Washington, D.C., with some trains extending service to Martin State Airport. The schedule features nine round trips on Saturdays (three of which begin or end at Martin State) and six round trips on Sundays (two starting or ending at Martin State).
- Increasing mid-day and reverse commute service frequencies on the Camden and Brunswick Lines; by 2015, limited reverse commute options were available on the Camden Line.
- Extending routes beyond Union Station to L'Enfant Plaza and further into Northern Virginia via VRE lines to ease congestion on the Washington Metro.
- Adding more daily trips east of Baltimore’s Penn Station to improve access to Aberdeen Proving Ground.
- Extending service past Perryville toward Newark or Wilmington, facilitating connections with SEPTA commuter trains bound for Philadelphia.
- Building new or enlarging existing tunnels along Baltimore's segment of the Northeast Corridor.
- Introducing additional stations within Baltimore to enable direct transfers with the Baltimore Metro Subway, including stops serving Johns Hopkins Hospital and Bayview Medical Center.
- Developing rapid transit-style service throughout Baltimore.
While some elements of the plan required extended timelines for implementation, others—such as weekend Penn Line service—were feasible for near-term introduction but were postponed due to budgetary limitations. To mitigate funding deficits in spring 2009, most non-Amtrak stations replaced ticket agents with Amtrak "Quik-Trak" touchscreen kiosks; certain train services were also reduced or eliminated. Stations that previously lacked staffing, like , were equipped with ticket vending machines. Odenton and Frederick stations continued to have staff through Commuter Direct.
2010s: Early Proposal for Delaware Extension
In 2017, the Wilmington Area Planning Council provided ridership analyses to Cecil County, the Delaware Valley Regional Planning Commission, SEPTA, and the Delaware Department of Transportation advocating for MARC service expansion from Perryville into Newark, Delaware, with a possible extension to Wilmington via Elkton. This portion of the Northeast Corridor remains one of only three segments without commuter rail service. Historically, Cecil Transit’s Route 5 bus connected Perryville and Newark stations.
2020s: Agreement on Extensions to Delaware and Virginia
On April 13, 2023, MDOT revealed a partnership with the Virginia Passenger Rail Authority and Delaware Transit Corporation to investigate extending MARC services beyond their existing endpoints. Expanding service into Virginia would provide a direct, single-seat journey from Maryland to Alexandria, Virginia. Meanwhile, the proposal to extend service to Newark, Delaware—first introduced in 2017—continues to be a topic of regional deliberation. Achieving the Virginia extension hinges on replacing the Long Bridge over the Potomac River to accommodate more trains, with project completion anticipated by 2030. Additionally, on August 8, 2024, VRE and MDOT launched a cross-honoring ticket initiative aimed at improving connectivity across the region.
MARC Growth and Transformation Plan
In June 2025, the Maryland Transit Administration presented the MARC Growth and Transformation Plan, which sets forth a phased approach for expanding service and increasing train frequency. This strategy is divided into three segments: an initial 5-year period (FY2026–2030), a subsequent 15-year period (FY2031–2040), and a long-term phase extending beyond FY2041 without set constraints. Although designed to boost capacity and introduce additional stops, the plan currently lacks secured funding.