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The Class 175 Coradia is a type of diesel multiple unit passenger train used in the United Kingdom. The fleet of 27 sets were built from 1999 to 2001 by Alstom at Washwood Heath in Birmingham. They are part of the Coradia family of trains along with the Class 180. They are the basis of Transport for Wales' express fleet, but cannot operate on all lines (including those fitted with ETCS).

British Rail Class 175 Coradia
Class 175 train.jpg
Transport for Wales 175107 in October 2018
Chelford MMB 01 Crewe to Manchester Line 175007.jpg
Interior of Arriva Trains Wales 175007 in 2013.
In service20 June 2000 – present
ManufacturerAlstom[1]
Built atWashwood Heath, Birmingham[2]
Family nameCoradia[1]
Replaced
Constructed1999–2001[1]
Number built27 sets[1]
Number in service27 sets
Formation175/0: 2 cars per train set (DMSL-DMSL)
175/1: 3 cars per train set (DMSL-MSL-DMSL)[1]
Capacity136 seats per 2-car unit[1]
Operator(s)current:
Transport for Wales
previously:
First North Western
First TransPennine Express
Wales and Borders
Arriva Trains Wales
Depot(s)Chester
Specifications
Car body constructionSteel[1]
Car lengthDriving end vehicles 23.71 m (77 ft 9 in)
Centre cars 23.03 m (75 ft 7 in)[1]
Width2.73 m (8 ft 11 in)[1]
DoorsSwing plug at vehicle ends[1]
Articulated sectionsFlexible diaphragm within unit only[1]
Maximum speed100 mph (160 km/h)[1]
Weight97.85 t (96.30 long tons; 107.86 short tons) or 144.14 t (141.86 long tons; 158.89 short tons) per set[1]
Prime mover(s)One per car,
Cummins N14 diesel [1]
Power output450 hp (340 kW)[1]
TransmissionVoith T211 hydraulic transmission
ZF final drive[1]
2 axles driven per car
Braking system(s)Friction/Hydrodynamic retarder (Retarders bypassed due to unreliability)
Safety system(s)AWS, TPWS
Coupling systemScharfenberg[3]
Track gauge1,435 mm (4 ft 8 12 in) standard gauge

The entire fleet is owned by the rolling stock operating company Angel Trains. They were originally leased to First North Western, but the fleet was since transferred to Arriva Trains Wales, and then Transport for Wales. For a brief period, units were also sub-leased to First TransPennine Express.

Contents

DescriptionEdit

In September 1997, North West Trains placed an order with Alstom for 27 train-sets. The original order was for eleven two-carriage units with a top speed of 100 mph, seven three-carriage units with a top speed of 100 mph and nine three-carriage units with a top speed of 125 mph. This was reconfigured to eleven two-carriage and sixteen three-carriage units all with a top speed of 100 mph, worth £78 million,[4] built to allow for the replacement of elderly Class 101 'heritage' DMUs and locomotive-hauled trains to Bangor and Holyhead. As they were constructed, the old locomotive sheds at Chester were replaced with a purpose-built facility in order to service the Class 175 units.[2] Units were tested at low speed at the Severn Valley Railway before further testing and driver training at the Old Dalby Test Track from November 1999.[5] The first unit entered service on 20 June 2000.[4]

The two-carriage units are numbered 175001–011, and the three-carriage units 175101–116. Carriages are labelled as coaches A–B–C, with two-car units having no coach B. Each train has provision for two disabled passengers in coach A, and storage for two bicycles in coach C.[6]

Early reliability problems meant that some services were operated by old rolling stock at short notice.[7][8] Remedial work included improving brakes and bogies,[9] and the reliability of the units is now greatly improved.[10]

Class 175 Coradias are fitted with a passenger information system, which consists of onboard LED display and audio announcements of train destinations and arrivals.[1]

OperationsEdit

The entire Class 175 fleet was operated by First North Western from their introduction in 2000 until October 2003, when franchise changes led to North Wales Coast Line services being transferred to Wales & Borders; as a result most of the fleet was then used by Wales & Borders: First North Western's branding was removed from all the units, but the livery remained largely the same.[11]

The fleet was transferred to Wales & Borders' successor Arriva Trains Wales in 2004, with some being sub-leased to First TransPennine Express, who took over First North Western's long-distance routes. First TransPennine Express took delivery of new Class 185 Desiro units in 2006, and the sub-leased Class 175s returned to ATW. On 14 October 2018, the Class 175 fleet transferred to Transport for Wales. The units have been based at the Chester depot throughout, and they have been operated in Wales, North-West England and the West Midlands.

North West and West MidlandsEdit

From their introduction in 2000,[12] First North Western (FNW) operated the Class 175s until 2003, when the fleet was transferred to Arriva Trains Wales.

The units were used on various services:

In 2003, the trains transferred to the Wales & Borders franchise and subsequently ATW. However, under a contractual agreement, 11 units were leased back daily from ATW to FNW and then later to First TransPennine Express for use on the Manchester Airport to Blackpool and Cumbria services until mid-December 2006, when that contract expired. They also continued to work the First North Western morning peak service between Chester and Manchester Piccadilly via Altrincham until December 2004.

WalesEdit

 
175113 rounds the bend into Deganwy with a service from Llandudno.

The entire Class 175 Coradia fleet was transferred to ATW when it took over responsibility for the North Wales Coast Line in 2004. On 14 October 2018, the Class 175 fleet transferred to Transport for Wales. The fleet is based at Chester Depot.

Transport for Wales uses Class 175s on Cardiff Central to Manchester and Holyhead service. Some South Wales bound services continue beyond Cardiff to Maesteg, Carmarthen, Fishguard Harbour and Milford Haven. They also continue to operate in the North West on Llandudno to Manchester Piccadilly services and the three trains daily extend to Manchester Airport. Since the installation of ERTMS signalling on the Cambrian Coast in 2008, the Class 175s are not used on services to Aberystwyth and Pwllheli because they lack the necessary equipment. These services are operated with Class 158 Express Sprinter units.

Fourteen Class 175 Coradia units are in operation on daily Welsh Marches Line services to South Wales from Manchester and Holyhead, while ten are in operation on the North Wales Inter-Urban services between Manchester/Crewe and Chester/North Wales. One Sunday-only service sees the unit travel from Holyhead to Birmingham New Street via Stafford.

They have been cleared by Network Rail to operate the lines from Cardiff Central to Maesteg,[13] Cheltenham,[14] and Ebbw Vale.[15]

All units are scheduled to be off-lease in 2021/22.[16]

Accidents and IncidentsEdit

On 16 January 2010, 175103 operating the 08:30 service from Manchester Piccadilly to Milford Haven struck two cars at Moreton-on-Lugg crossing between Hereford and Leominster.[17] The front seat passenger in one of the cars was fatally injured, although there were no casualties on the train. The train did not derail. The signaller had raised the barriers in error when the train was approaching the crossing,[18] and he was arrested on suspicion of manslaughter in July 2010.[19][20]

The same service collided with a trailer on the Morfa Main level crossing near Kidwelly on 31 January 2011. No-one was injured, but the unit involved, 175108, received nearly £82,000 worth of damage due to striking the trailer at 75 miles per hour (121 km/h). The farmer in charge of the trailer was sentenced to a 36-week suspended jail sentence and was ordered to carry out 200 hours of community work.[21][22]

On 19 December 2011, 175002 collided with a lorry at the Llanboidy level crossing near Whitland.[23] The train was operating the service from Milford Haven to Manchester Piccadilly and the driver of the lorry was arrested on suspicion of endangering safety.[24]

Class 175 units have caught fire in 2004 at Preston (175008), 2009 at Prestatyn, 2011 at Manchester Piccadilly, 2017 both at Shrewsbury (175109) and between Chester and Crewe, 2018 at Deganwy, and most recently in 2019 near Pontrilas (175107).[25][26][27][28][29][30]

In February 2018, the entire Class 175 fleet was temporarily withdrawn from service for safety checks.[31] After further investigation, it was found that a track fault between Newport and Cwmbran had been caused wheel damage to several class 175 units, and also some Class 158s.[32]

Fleet detailsEdit

Class Operator No. built Year built Cars per set Unit nos.
Class 175/0 Transport for Wales 11 1999–2001 2 175001 – 175011
Class 175/1 16 1999–2001 3 175101 – 175116

Named unitsEdit

Some of the class have received names:

All except for Eisteddfod Genedlaethol Cymru were named by First North Western. The nameplates were all removed in 2009 when the fleet was repainted into Arriva Trains Wales livery.[40]

GalleryEdit

ReferencesEdit

  1. ^ a b c d e f g h i j k l m n o p q "Class Data Page". Angel Trains. Retrieved 27 November 2015.
  2. ^ a b "Exciting new era of high speed travel". First North Western. n.d. Archived from the original on 28 November 1999.
  3. ^ "Mechanical And Electrical Coupling Index". Rail Safety and Standards Board. Archived from the original on 21 December 2013. Retrieved 20 December 2010.
  4. ^ a b Angel Trains (21 June 2000). "Angel Trains delivers first of 27 Class 175 Coradia trains" (Press release). Retrieved 17 March 2009.
  5. ^ "Class 175 Coradia DMU". traintesting.com. Retrieved 17 March 2009.
  6. ^ North Wales Coast Railway - The Trains nwrail.org.uk refers to the coach labelling.
  7. ^ "Select Committee on Transport Appendices to the Minutes of Evidence". 11 June 2003. Retrieved 14 March 2009. Section 2.3:unit availability was over 60% on only one occasion
  8. ^ "About us - History". Riviera Trains. Archived from the original on 29 March 2009. Retrieved 14 March 2009. With the ongoing poor availability of Arriva Trains Wales North Wales Coast Class 175 units...
  9. ^ "About Us". Train Maintenance Solutions. Retrieved 14 March 2009.
  10. ^ "How do you solve a problem like Coradia?". Modern Railways (January 2007): 50.
  11. ^ "North Wales Railway notice board". 14 October 2003. Retrieved 17 March 2009.
  12. ^ "Angel Trains delivers first of 27 Class 175 Coradia trains" (Press release). Angel Trains. 21 June 2000. Retrieved 14 March 2009.
  13. ^ "Utilisation of Cardiff-Maesteg Service" (PDF). Network Rail. 21 November 2006. Retrieved 20 October 2008.
  14. ^ "Introduction of Class 175 units between Gloucester and Cheltenham" (PDF). Network Rail. 3 April 2008. Retrieved 20 October 2008.
  15. ^ "Introduction to Ebbw Vale line" (PDF). Network Rail. 20 November 2007. Retrieved 20 October 2008.
  16. ^ Annex A Government of Wales
  17. ^ Hulme, Charlie (19 January 2010). "Level Crossing fatality on the Marches line". The North Wales Coast Railway Notice Board. Retrieved 19 December 2011.
  18. ^ Fatal accident at Moreton-on-Lugg, near Hereford, 16 January 2010 (PDF) (Report). Rail Accident Investigation Branch, Department for Transport. July 2011. Retrieved 19 December 2011.
  19. ^ Hulme, Charlie (26 July 2010). "Moreton-on-Lugg accident: man arrested". The North Wales Coast Railway Notice Board. Retrieved 19 December 2011.
  20. ^ "Arrest after level crossing death in Herefordshire". BBC News. 19 July 2010. Retrieved 19 December 2011.
  21. ^ "Kidwelly train crash farmer 'incredibly stupid'". BBC News. 28 October 2011. Retrieved 19 December 2011.
  22. ^ Samuel, A (31 October 2011). "Farmer who caused train crash given suspended prison sentence". Rail.co. Retrieved 19 December 2011.
  23. ^ "Train and lorry collide on level crossing near Whitland". BBC News. 19 December 2011. Retrieved 19 December 2011.
  24. ^ "Whitland train crash: Lorry driver, 48, is arrested". BBC News. 19 December 2011. Retrieved 19 December 2011.
  25. ^ Hulme, Charlie (14 November 2011). "Fire drama at Manchester Piccadilly". The North Wales Coast Railway Notice Board. Retrieved 19 December 2011.
  26. ^ "Train evacuated after engine fire". BBC News. 26 August 2009. Retrieved 19 December 2011.
  27. ^ Hulme, Charlie (21 November 2011). "The fire in 175 110 - update". The North Wales Coast Railway Notice Board. Retrieved 19 December 2011.
  28. ^ Rowden, Nathan. "Trains cancelled and delayed after Shrewsbury Railway Station blaze drama - with pictures and video". www.shropshirestar.com. Retrieved 8 November 2017.
  29. ^ "Eighty evacuated over train fire reports". 15 February 2019. Retrieved 17 February 2019.
  30. ^ Holmes, David (24 October 2017). "Train fire caused disruption between Chester and Crewe". chesterchronicle. Retrieved 17 February 2019.
  31. ^ Austin, Sue (28 February 2018). "Rail chaos as Arriva Trains Wales cancels services for urgent safety checks on damaged wheels". Shropshire Star. Retrieved 28 February 2018.
  32. ^ "North Wales Coast Railway Notice Board: Arriva's Troubled Week". 8 March 2018. Retrieved 23 January 2019.
  33. ^ Llandudno and Conwy Valley Railway Society (2006). "News 2006". Archived from the original on 18 December 2007. Retrieved 17 March 2009. At Bangor station on 2nd August 2005 Bryn Terfel named 175003 Eisteddfod Genedlaethol Cymru
  34. ^ a b "The Encyclopaedia of Modern Traction Names - M". TheRailwayCentre.com. Retrieved 17 March 2009.
  35. ^ a b "The Encyclopaedia of Modern Traction Names - B". TheRailwayCentre.com. Retrieved 17 March 2009.
  36. ^ "The Encyclopaedia of Modern Traction Names - V". TheRailwayCentre.com. Retrieved 17 March 2009.
  37. ^ a b "The Encyclopaedia of Modern Traction Names - C". TheRailwayCentre.com. Retrieved 17 March 2009.
  38. ^ "The Encyclopaedia of Modern Traction Names - S". TheRailwayCentre.com. Retrieved 17 March 2009.
  39. ^ "The Encyclopaedia of Modern Traction Names - P". TheRailwayCentre.com. Retrieved 17 March 2009.
  40. ^ "North Wales Coast Line - Notice Board". 22 February 2009. Retrieved 17 March 2009. It is confirmed that the name Eisteddfod Genedlaethol Cymru on 175 003 did not survive the repainting experience. ATW seem to be removing all names as trains are repainted...[permanent dead link]

External linksEdit