The Trans-Dublin is a railway route serving the city of Dublin and its surrounding areas. The route is used primarily by the DART

Dublin Area Rapid Transit

The Dublin Area Rapid Transit is part of the suburban railway network in Ireland, running mainly along the coastline of Dublin Bay on the Trans-Dublin route, from Greystones in County Wicklow, through Dublin to Howth and Malahide in County Dublin.Trains are powered via a 1500V DC overhead catenary...

 service, and runs north-south along the east coast of Ireland

Ireland

Ireland is an island to the northwest of continental Europe. It is the third-largest island in Europe and the twentieth-largest island on Earth...

. The route is divided into two parts over two different railway lines:

• Belfast to Dublin main line
  Dublin-Belfast railway line
  The Dublin-Belfast main line is a major railway route in Ireland that connects Dublin Connolly station in the Republic of Ireland and Belfast Central station in Northern Ireland.-History:The railway line was built by three separate companies...
  
   - This runs from Dublin Connolly
  Dublin Connolly railway station
  Dublin Connolly, commonly called Connolly station , is one of the main railway stations in Dublin, Ireland, and is a focal point in the Irish route network. Opened in 1844 as Amiens Street Station, the ornate facade has a distinctive Italianate tower at its centre...
  
   to Belfast Central
  Belfast Central railway station
  Belfast Central is a railway station serving the city of Belfast in County Antrim, Northern Ireland. It is one of the four stations located in Belfast City Centre, the others being Great Victoria Street, City Hospital and Botanic....
  
  . The northern section of the Trans-Dublin operates between Dublin Connolly and Howth Junction
  Howth Junction railway station
  Howth Junction & Donaghmede railway station serves the area of Donaghmede, and parts of Kilbarrack in Dublin. It is located where the Dublin-Belfast railway line and Dublin-Malahide line separates from the Dublin-Howth line. It is located in Donaghmede....
  
  , where it branches off. The main line continues to Malahide
  Malahide
  Malahide is a coastal suburban town, near Dublin city, located in the administrative county of Fingal, within the traditional County Dublin, Ireland. It has a village-like centre and extensive residential areas to the south, west and northwest.-Name:...
  
  , while a short branch terminates at Howth
  Howth
  Howth is an area in Fingal County near Dublin city in Ireland. Originally just a small fishing village, Howth with its surrounding rural district is now a busy suburb of Dublin, with a mix of dense residential development and wild hillside, all on the peninsula of Howth Head. The only...
  
  .
• Dublin to Rosslare main line
  Dublin-Rosslare railway line
  The Dublin-Rosslare railway line is a main rail route between Dublin Connolly station and Rosslare Europort, where it theoretically connects with ferry services to the United Kingdom and mainland Europe. The line between Dublin and Greystones is electrified and forms the southern part of the DART...
  
   - This runs from Dublin Connolly to Rosslare Europort
  Rosslare Europort railway station
  Rosslare Europort railway station is a railway station serving Rosslare Harbour in County Wexford, Ireland. There is only one platform. The station is owned and operated by Iarnród Éireann and is served by the mainline from station. Until 18 September 2010 there was also a single daily service...
  
  . The southern half of the Trans-Dublin runs as far as Greystones
  Greystones
  Greystones is a coastal town and small seaside resort in County Wicklow, Ireland. It is located on Ireland’s east coast, south of Bray and south of Dublin , with a population in the region of 15,000....
  
   in County Wicklow
  County Wicklow
  County Wicklow is a county in Ireland. It is part of the Mid-East Region and is also located in the province of Leinster. It is named after the town of Wicklow, which derives from the Old Norse name Víkingalág or Wykynlo. Wicklow County Council is the local authority for the county...
  
  .

The two sections of the route are connected through the centre of Dublin by the Loopline Bridge

Loopline Bridge

The Loopline Bridge is a railway bridge spanning the River Liffey and several streets in Dublin, Ireland. It joins rail services from south of Dublin to Connolly Station and lines north....

 over the River Liffey

River Liffey

The Liffey is a river in Ireland, which flows through the centre of Dublin. Its major tributaries include the River Dodder, the River Poddle and the River Camac. The river supplies much of Dublin's water, and a range of recreational opportunities.-Name:The river was previously named An Ruirthech,...

 between Dublin Connolly and Tara Street

Tara Street railway station

Tara Street is the 3rd busiest railway station in Ireland , with over 25,000 passengers using it daily. The station is arguably the closest station to the Dublin city centre and certainly is the closest to O'Connell Bridge....

.

Future

The Trans-Dublin route will see significant changes over the next decade with the construction of the Interconnector

Interconnector (rail tunnel)

DART Underground , previously known as the Interconnector, is a planned railway tunnel in Ireland, projected to run under the city centre of Dublin. The tunnel would allow for the expansion of the electrified DART and the Dublin Suburban Rail network, and connect Heuston Station with Pearse Station...

. This is a railway tunnel that will be built under the centre of the city to connect Dublin Heuston

Dublin Heuston railway station

Dublin Heuston , commonly called Heuston Station , is one of Ireland's main railway stations, serving the south, southwest and west. It is operated by Iarnród Éireann , the national railway operator...

, Dublin Pearse

Dublin Pearse railway station

Dublin Pearse, also known as Pearse Station , located on Westland Row in the Southside in Dublin, Ireland, is Ireland's busiest railway station and an important commuter terminus for the Dublin area.-Services:...

 and Docklands

Docklands railway station

Docklands Station is a new railway station serving the Dublin Docklands area in Ireland owned by Córas Iompair Éireann planned as part of the Government Transport 21 initiative....

. This will be used to create two "new" DART lines. The northern section will be diverted away from Dublin Connolly to Docklands and then through the new tunnel calling at new underground stations at Dublin Pearse, St Stephen's Green, High Street and Dublin Heuston, where it will connect with the lines to the south and west of Ireland, terminating at Hazelhatch

Hazelhatch

Hazelhatch is an area on the border between County Kildare and County Dublin in Ireland. It is located approximately halfway between Celbridge and Newcastle. It is located on the R405 regional road. The Grand Canal passes through the area, and Hazelhatch is one of the places of recreational...

. The southern section will continue on its existing route as far as Dublin Connolly, where it will then be diverted via the Western Commuter

Dublin Suburban Rail

The Dublin Suburban Rail network, , is a railway network that serves the city of Dublin, Ireland, most of the Greater Dublin Area and outlying towns...

 route via Drumcondra to terminate at either Maynooth

Maynooth

Maynooth is a town in north County Kildare, Ireland. It is home to a branch of the National University of Ireland, a Papal University and Ireland's main Roman Catholic seminary, St. Patrick's College...

, or the new Pace M3

Pace M3 railway station

M3 Parkway is a railway station in County Meath on the planned Clonsilla-Navan railway line. It mainly serves as a large Park and Ride site, with 1,200 spaces...

 Park and Ride station on the re-opened Navan

Navan

-People:Navan was the childhood home of Pierce Brosnan, who appeared in the television series Remington Steele and was the fifth film actor to play James Bond. TV personality Hector Ó hEochagáin, and comedians Dylan Moran and Tommy Tiernan also hail from Navan....

 branch.

See also

• Thameslink
  Thameslink
  Thameslink is a fifty-station main-line route in the British railway system running north to south through London from Bedford to Brighton, serving both London Gatwick Airport and London Luton Airport. It opened as a through service in 1988 and by 1998 was severely overcrowded, carrying more than...
  
   - a similar north-south route through Central London
  London
  London is the capital city of :England and the :United Kingdom, the largest metropolitan area in the United Kingdom, and the largest urban zone in the European Union by most measures. Located on the River Thames, London has been a major settlement for two millennia, its history going back to its...