Rolling stock › In serviceData updated
Class 334
Alstom's three-car electric train, in service since 2001. It runs the Airdrie–Bathgate line between Edinburgh and Glasgow and other services around Glasgow. Eversholt Rail, which owns the fleet, has since fitted it with new digital CCTV for driver-only operation, Voith couplers, new heating and air conditioning, remote condition monitoring, a driver advisory system, WiFi and at-seat power. In November 2020 it placed a contract with Alstom for an overhaul of all 40 units at Polmadie (Glasgow) and Longsight (Manchester), from October 2021.
Scale
203 ft (61.96 m) (the cars’ lengths added)
Class 334 · schematic drawing GB Trains · gbtrains.uk/stock/334/ · CC BY 4.0
You’re welcome to use this drawing
Free to use, change and share, in print or online, under CC BY 4.0. Please credit it:
Drawing: GB Trains, gbtrains.uk, CC BY 4.0Online, link the words to this page. The downloaded file already carries the credit; please leave it on. What the licence covers
Liveries
Special liveries 1
- Pride progress-flag colours Unveiled in June 2021; the wrap is to stay until 2029.
Former liveries 1
Delivery livery (SPT)Ran as ScotRail (National Express), then First ScotRail; SPTFormer2001-02 to 2010Not drawn yet
- Type
- Electric multiple unit
- Builder
- Alstom
- In service
- since 2001
- Operators
- ScotRail
- Formation
- 3 cars (DMS-PTS-DMS): driving cars 68 ft 11 in (21.01 m), middle car 65 ft 5 in (19.94 m)
- Fleets
- ScotRail: 40
- Top speed
- 90 mph (145 km/h)
- Power
- 25 kV AC overhead · how it works
- Bogies
- Alstom ACR bogies (Juniper) · drawn with the same bogie component as Class 458 Juniper
- Train length
- 203 ft (61.96 m) (the cars’ lengths added)
- Profile
- main-line
- Seats per train
- 178
- Total capacity
- 178 seats and 5 tip-up; one universal access toilet; cycle storage
- Status
- In service: 40 three-car units.
Car types
| Code | Car | Length | Doors per side |
|---|---|---|---|
| DMS | Driving motor standard (DMS) | 68 ft 11 in21.01 m | 2 double |
| PTS | Pantograph trailer standard (PTS) | 65 ft 5 in19.94 m | 2 double |
| DMSB | Driving motor standard (DMS), with the cycle area | 68 ft 11 in21.01 m | 2 double |
Sources
How we source figures → · Spotted a mistake? Tell us → (opens in a new tab)
Show the 29 sources from Wikimedia Commons, Flickr, Eversholt Rail and 5 more
- Class 334 Eversholt Rail40 three-car units; Alstom; in service 2001; formation; car lengths; seats; 90 mph (145 km/h); 25 kV AC; routes; one universal access toilet and bicycle storage; the enhancement programme: digital CCTV for driver-only operation, Voith couplers, HVAC, Train Tracer, driver advisory system, at-seat power, WiFi (summary, capacity)
- Eversholt Rail award Class 334 maintenance contract to Alstom Eversholt Rail, 20 November 2020the overhaul of all 40 units by Alstom at Polmadie and Longsight from October 2021 (summary)
- Identity Guidelines for Scotland's Railway, version 1.1: Rolling stock (pp. 14-36), with ScotRail's train outlines (livery sheets) and decals Transport Scotland, 2023, pp. 15-17, 20the drawing: the Class 334 livery sheet (a three-car unit in side elevation), measured; the livery colours
- ScotRail Saltire photographs, side-on or nearly ('Abellio ScotRail class 380 "Electrostar" EMU 380014 at Largs', 2021-06-21; 'Largs - ScotRail 380020 Glasgow service', 2025-06-08; 'Eastfield - ScotRail 385014 and 385111', 2025-06-09; 'Scotrail Train at Falkirk Grahamston (47738786752)', 2019; 'British Rail Class 385s - Abellio ScotRail 385123 (3)', 2020-01-31; 'Motherwell - ScotRail 320316 Dalmuir service', 2025-06-07; 'Glasgow Queen Street - ScotRail 153377 West Highland Explorer', 2025-06-09; 'ScotRail Class 156 DMU in 2022', 2022-10-06; '318261 in saltire livery at Gourock', 2019-10-29) Wikimedia Commons (Matt Buck, CC BY-SA 2.0; Geof Sheppard, CC BY-SA 4.0; Daniel from Glasgow, CC BY 2.0; Kevin.B, CC BY-SA 4.0; Coopydood, CC BY-SA 4.0; dave souza, CC BY-SA 4.0), 2019-2025the Saltire's dots: where the arrows and vignettes sit, and the dots a row and rows a field (layout and count only)
- Scotrail Class 334 w-pantograph.png: a three-car Class 334 in ScotRail's Saltire livery (side diagram, CC BY-SA 4.0) WestRail642fan, via Wikimedia Commons, 17 June 2020the drawing: layout of the underframe equipment
- '334 006 Pride scheme on Bathgate depot.jpg' (photograph: 334006's leading driving car side on, its bogie behind a fence; CC BY 4.0) Wikimedia Commons (kitmasterbloke), 1 September 2026the bogies' layout, side on, and the dark mass behind them (layout only)
- 'British Rail Class 334 005.jpg' (photograph: 334005 at a platform, its leading bogie from three-quarters; CC BY-SA 2.5) Wikimedia Commons (Dave souza), 9 June 2006the bogies' axleboxes, rubber spring stacks and yaw damper (layout only)
- 'Class 334 Coradia Juniper EMU (55152099173).jpg' (photograph: 334002 from above, three-quarter; CC BY-SA 4.0) Wikimedia Commons (Samson Ng, D201@EAL), 17 August 2025the pantograph's base and insulators down in the roof well (layout only)
- '334001 - Dalreoch.jpg' (photograph: a Class 334 crossing the River Leven at Dalreoch, side on from a little above; public domain) Wikimedia Commons (TheDullName), 6 August 2024the pantograph's base frame flush with the roof, its end and place on the PTS (layout only)
- 'Scot Rail train (48402691291).jpg' (photograph: a Class 334 on a viaduct in Glasgow, side on from below; CC BY 2.0) Wikimedia Commons (John Seb Barber), 6 October 2016the pantograph's base hidden in its well from below (layout only)
- 'Class 334 Coradia Juniper EMU (55152099173).jpg' (photograph: 334002 from above, its leading bogie in sunlight; CC BY-SA 4.0) Wikimedia Commons (Samson Ng, via Flickr), 17 August 2025the bogies' yaw damper and console (layout only)
- '334001 - Dalreoch.jpg' (photograph: a Class 334 crossing the River Leven at Dalreoch, side on from a little above; public domain) Wikimedia Commons (TheDullName), 6 August 2024the pantograph well closed at the side: the bodyside up to the roof line over it (layout only)
- IMGP5380 (photograph: 'Abellio ScotRail class 334 Juniper EMUs in the depot at Bathgate', a DMS's cab end close and near side on) Flickr, 25 October 2021the drawing: the cab-end arrow's dots, counted and placed on one lattice, and their sizes (layout only)
- IMGP5380 (photograph: 'Abellio ScotRail class 334 Juniper EMUs in the depot at Bathgate', a DMS's cab end close and near side on) Flickr, 25 October 2021the drawing: the cab door's window against its door (layout only)
- 334028, Haymarket, March 2nd 2016 (photograph: the DMS side on, its cab door and window) Flickr, 2 March 2016the drawing: the cab door's window against its door (a check; layout only)
- IMGP5380 (photograph: 'Abellio ScotRail class 334 Juniper EMUs in the depot at Bathgate', a DMS's cab end close and near side on) Flickr, 25 October 2021the drawing: the cab door's width against its height (SA46; layout only)
- 334028, Haymarket, March 2nd 2016 (photograph: the DMS side on, its cab door and window) Flickr, 2 March 2016the drawing: the cab door's width against its height (SA46; a check; layout only)
- IMGP5380 (photograph: 'Abellio ScotRail class 334 Juniper EMUs in the depot at Bathgate', a DMS's cab end close and near side on) Flickr, 25 October 2021the drawing: the cab door window's rubber surround and the divider between its two panes, measured; the other windows' frames (a334b, 12 October 2026, set A334; layout only)
- 334028, Haymarket, March 2nd 2016 (photograph: the DMS side on, its cab door and window) Flickr, 2 March 2016the drawing: the cab door window's divider (a check), and the rubber round the passenger door windows, measured (a334b, 12 October 2026, set A334; layout only)
- IMGP5380 (photograph: 'Abellio ScotRail class 334 Juniper EMUs in the depot at Bathgate', a DMS's cab end close and near side on) Flickr, 25 October 2021the drawing: the cab door window's foot re-read between the door's seams, and the wide saloon windows' transom (c334, 13 October 2026, set A334B; layout only)
- 334028, Haymarket, March 2nd 2016 (photograph: the DMS side on, its cab door and window) Flickr, 2 March 2016the drawing: the wide saloon windows' transom, measured, and the cab door window's foot (a check) (c334, 13 October 2026, set A334B; layout only)
- '334001 - Dalreoch.jpg' (photograph: a Class 334 crossing the River Leven at Dalreoch, side on from a little above; public domain) Wikimedia Commons (TheDullName), 6 August 2024the drawing: the transom on every wide saloon window of the DMS and PTS, none on the narrow pane behind the cab (c334, 13 October 2026, set A334B; layout only)
- 334028, Haymarket, March 2nd 2016 (photograph: the DMS side on, its cab door and window) Flickr, 2 March 2016the drawing: the saloon glass inside its body-coloured frame, and the glass's corners, measured (c334c, 13 October 2026, Q131; layout only)
- IMGP5380 (photograph: 'Abellio ScotRail class 334 Juniper EMUs in the depot at Bathgate', a DMS's cab end close and near side on) Flickr, 25 October 2021the drawing: the saloon glass's height against its frame (a check) (c334c, 13 October 2026, Q131; layout only)
- '334001 - Dalreoch.jpg' (photograph: a Class 334 crossing the River Leven at Dalreoch, side on from a little above; public domain) Wikimedia Commons (TheDullName), 6 August 2024the door markings (set T13): the accessible area at the PTS's door 1 and the cycle area at the far DMS's door next to the PTS, one DMS a unit; their colours (layout and colour only)
- '334 006 Pride scheme on Bathgate depot.jpg' (photograph: 334006's leading driving car side on, its bogie behind a fence; CC BY 4.0) Wikimedia Commons (kitmasterbloke), 1 September 2026the cycle-area marking at a DMS's door 2: its bar and outlines (layout only)
- British Rail Class 334 Wikipedia, read 13 October 2026the livery's name, who ran it and its years (no colours taken)
- Pride of ScotRail Train unveiled Rail Technology Magazine, 25 June 2021the progress-flag livery on a Class 334, unveiled in June 2021 for Pride Month; the vinyls to stay until 2029
- A Guide to Overhead Electrification (132787-ALB-GUN-EOH-000001, rev 10) Network Rail (prepared by Alan Baxter), February 2015, p. 39the contact wire in the In operation drawing: 15 ft 5 in (4.7 m) above rail, Network Rail's normal height
.jpg){kind=link}
.jpg){kind=link}
unverified
- The drawing's source sheet: ScotRail's livery template of March 2010 (unit number '334000'); changes to the trains since then, such as for the accessible toilet Eversholt now lists, may not be shown
- The drawing's driving cars: the sheet draws them 0.2-0.3% long against the PTS (38 to 66 mm); each car is scaled by its own printed length
- The drawing's couplings: taken at the nose foot and mid-way between bodies, which the sheet doesn't mark
- The drawing's wheels (2 ft 11 in (889 mm)) and bogie frames: as drawn on a livery sheet, not from a bogie drawing; the bogie's other parts (springs, damper, console) placed from photographs, layout only; the type ('Alstom ACR', as Wikipedia gives for the 458 and 460) isn't named for the 334 in a source read
- The drawing's pantograph: no photograph read shows it folded (every one has it raised), so its folded height (12 ft 11 in (3,946 mm)) is the drawer's shortest stack on the sheet's well floor, not a measurement; its length and place are the sheet's (the Dalreoch photograph puts the base about 3 ft 3 in (1 m) nearer the car end, within its error); and the Dalreoch photograph shows the knee, raised, standing out over the gangway beyond the lower arm's foot, where the shared drawer puts it over the car on the far side of the hinge
- The cab-end arrow's dots (salt3) are read from one photograph (2021) and checked on 334028 (2016); the dots on the nose's curve are a little foreshortened in it, and the two dots the photograph leaves out at the cab door's front edge (the second and third rows) are drawn; the Bathgate camera stands about level with the nose, so the dots round the nose's shoulder in front of the point are hidden from it (334028 at Haymarket, 2016, shows one or two more there, squeezed by the curve) and aren't drawn: the point stops about 90 mm short of the nose's outline (a334, 11 October 2026, set FU125)
- The delivery livery's operators: National Express ran ScotRail when the trains came in (2001), and First ScotRail only from October 2004 (Wikipedia; no primary source read)
- The drawing's door markings (set T13): each read off one photograph, about +/-100 mm along the car and +/-60 mm up (334001 at Dalreoch, 2024; 334006 at Bathgate, 2026, its outlines' foot read through a fence); their colours sampled from one sunlit photograph
- The years of the former liveries come from Wikipedia's class article and the other sources listed, and haven't been checked against a second source.
Know a source for one of these? Send it to us → (opens in a new tab)