Merthyr line

The Merthyr line is a commuter railway line in South Wales from central Cardiff to Merthyr Tydfil and Aberdare. The line is part of the Cardiff urban rail network, known as the Valley Lines.

Merthyr Line
An Arriva Trains Wales Class 150, with Castell Coch in the background
Overview
TypeHeavy rail
SystemNational Rail
LocaleCardiff
Rhondda Cynon Taff
TerminiCardiff Central
Operation
OwnerNetwork Rail
Technical
Line length
  • Merthyr–Abercynon: 8 miles 18 chains (13.2 km)
  • Aberdare–Abercynon: 6 miles 8 chains (9.8 km)
  • Abercynon–Cardiff: 15 miles 74 chains (25.6 km)
  • Total: 30 miles 20 chains (48.7 km)
[1]
Number of tracksDouble track Cardiff to Abercynon,
single track with loops on Aberdare and Merthyr Tydfil branches
Track gauge4 ft 8 1⁄2 in (1,435 mm) standard gauge
Merthyr line
Tower Colliery
Hirwaun
Trecynon
Aberdare
Cwmbach
Fernhill
Mountain Ash
Penrhiwceiber
Merthyr Tydfil
Pentre-bach
Troed-y-rhiw
Merthyr Vale
Quakers Yard
Abercynon North
Abercynon
Pontypridd
 Treforest
 Treforest Estate
 Taffs Well
 Radyr
Llandaf
 Cathays
Cardiff Queen Street
Cardiff Central

History

The line is historically the Taff Vale Railway, the first rail development in the Valleys in the 1840s and associated with the notorious Taff Vale Judgment in 1901 when the courts penalised trade unions for losses caused by strikes.

The Aberdare line was closed in the 1960s under the Beeching Axe. However, the line was re-opened in the 1980s in an attempt to stimulate jobs and employment in the valley in response to the closure of the last few coal mines.

In 2005, following further grant from the Welsh Assembly, the stations at Abercynon, Penrhiwceiber, Fernhill, Cwmbach and Aberdare were extended to four-car length to accommodate longer peak trains in an initiative to relieve overcrowding, train leasing/running costs also funded by the Welsh Assembly Government.

The Route

The line follows the Rhondda line as far as Pontypridd, serving Cathays, Llandaf, Radyr, Taff's Well, Treforest and Pontypridd. It then divides at Abercynon with separate branches to Merthyr and Aberdare up diverging valleys.

The Merthyr branch serves Quakers Yard, Merthyr Vale, Troed-y-rhiw, Pentre-bach and Merthyr Tydfil. The Welsh Assembly Government confirmed in February 2007 that it is grant funding, in conjunction with European Union Objective 1 assistance, a scheme to upgrade the line north of Abercynon, including reinstatement of 2 miles of double track, to enable the introduction of a half-hourly train service, the revenue costs of which the Welsh Assembly Government will also meet. The enhanced service was said to commence in 2008 but postponed to May 2009[2][3].

The Aberdare branch serves Penrhiwceiber, Mountain Ash, Fernhill, Cwmbach and Aberdare. The line continues beyond Aberdare – for goods purposes only – to serve Tower Colliery, which was the last deep coal mine to remain open in South Wales. Mountain Ash station was redeveloped with a grant from the Welsh Assembly Government in the early part of the decade, the scheme including the provision of a new station and a passing loop to permit an upgrade of the passenger service to two trains per hour from late 2003. There are a few gaps in the half-hourly service to enable coal/stone trains to run to/from Tower Colliery/Hirwaun.

Services

The line is currently operated by Transport for Wales (TfW) as part of the Valley Lines network. TfW replaced the previous franchise, Arriva Trains Wales in October 2018.

Both the Merthyr and Aberdare branch lines have a half-hourly service during the day which decreases to hourly in the evening. On a Sunday service frequency decreases to two-hourly.

In December 2017, Arriva Trains Wales introduced extra sunday morning services on the Aberdare line on a trial basis. This was in response to demand from the local Assembly Member.[4] The trial was deemed a success and the extra Sunday services were made permanent from April 2018.[5]

Extension to Hirwaun
EWS Class 66 moves coal from Tower Colliery towards Aberdare, 2006

Since its termination at Aberdare following the Beeching Axe, there have been various proposals to extend the line northwards towards Hirwaun again. In recent years, these have been driven by the Welsh Assembly Government.

In 2006, a study by local transport alliance Sewta appeared to rule out any such extension for the foreseeable future.

In November 2009, WAG sponsored Network Rail in a feasibility study to reopening both the section to Hirwaun, and parts of the former Anglesey Central Railway between Llangefni on Anglesey, and Bangor. Network Rail has already begun work on gathering evidence for its study, beginning with cutting away vegetation on track sections to examine the condition of rails and track bedding. Its report was expected to be published in early 2010, before any business case to reopen the lines can be developed.[6]

It was announced in March 2011 that the Welsh Assembly Government's 2011–12 capital programme would include the re-opening of the line to Hirwaun as part of the Cynon Valley Scheme.[7] There is currently no information on when the work will commence and when the line will re-open.

Electrification

On 16 July 2012 plans to electrify the line were announced by the Government as part of a £9.4bn package of investment of the railways in England and Wales.[8]

The announcement was made as an extension of the electrification of the South Wales Main Line from Cardiff to Swansea and the electrification of the south Wales Valley Lines at a total cost of £350 million. The investment will require new trains and should result in reduced journeys times and cheaper maintenance. It is thought to start between 2014 and 2019.[9]

gollark: Oh, *or* launch a gas giant at relativistic speeds from the next solar system along somehow.
gollark: Maybe just put the black hole into the sun.
gollark: So how much do you think adding 0.002% more mass to the sun will do?
gollark: > The principal component of the Solar System is the Sun, a G2 main-sequence star that contains 99.86% of the system's known mass and dominates it gravitationally.[18] The Sun's four largest orbiting bodies, the giant planets, account for 99% of the remaining mass, with Jupiter and Saturn together comprising more than 90%. The remaining objects of the Solar System (including the four terrestrial planets, the dwarf planets, moons, asteroids, and comets) together comprise less than 0.002% of the Solar System's total mass.[h]
gollark: 99.86% according to Wikipedia.

See also

References
  1. Yonge, John; Padgett, David (August 2010) [1989]. Bridge, Mike (ed.). Railway Track Diagrams 3: Western (5th ed.). Bradford on Avon: Trackmaps. maps 28B & 29A. ISBN 978-0-9549866-6-7.CS1 maint: ref=harv (link)
  2. Green Light for New Rail Links Welsh Assembly website. Retrieved 4 March 2009
  3. New half-hourly train service due to start Wales Online. Retrieved 14 May 2009
  4. "Christmas boost for Cynon Valley as Arriva Trains Wales confirms pilot of extra Sunday services". Arriva Trains Wales News. Archived from the original on 7 December 2017. Retrieved 6 December 2017.
  5. "Archived copy". Archived from the original on 28 April 2018. Retrieved 28 April 2018.CS1 maint: archived copy as title (link)
  6. "Old tracks could see trains again". BBC News. 5 March 2009. Retrieved 6 November 2009.
  7. WalesOnline (24 March 2011). "Aberdare-to-Hirwaun rail line set to reopen". walesonline.co.uk.
  8. "£9Bn Railway Investment Announced By Coalition". BBC News. 16 July 2012.
  9. "Rail electrification to Swansea and south Wales valleys welcomed". BBC News. 16 July 2012.

Further reading
  • Allen, David (6–19 May 1998). "Taff Vale Update". RAIL. No. 330. EMAP Apex Publications. pp. 38–39. ISSN 0953-4563. OCLC 49953699.

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