British Rail Class 450
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The British Rail Class 450 Desiro is a type of third-rail DC electric multiple unit (EMU) passenger train that entered service during 2003. Used for outer-suburban services, the units were built with both first- and standard-class accommodation. They have a maximum speed of Template:Convert.
The Desiro UK family also includes units of Classes 185, 350, 360, 380 and 444.
Along with the Class 444 Desiro, the Class 450 units are operated by South Western Railway.
IntroductionEdit
In April 2001, 785 vehicles were ordered by South West Trains in order to complete the replacement of its slam-door rolling stock, in accordance with its franchise commitment to do so by 2005, as the slam-door trains, many of which were more than 40 years old, did not meet modern health and safety requirements. Introduction to service was delayed by the required power supply upgrades capable of powering the new trains, which feature air conditioning, a feature not present in the slam-door trains they replaced. In the December 2004 timetable change, the Class 450 Desiro began serving most intended routes, although introduction was delayed until June 2005 in some areas. The units are leased by Angel Trains to South Western Railway.<ref name= AngelTrains />
Sixty-eight new vehicles were ordered by South West Trains as a replacement to the growth order which was diverted to form the similar Template:Brc range of electric multiple units.
OperationsEdit
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Class 450 units operate suburban, outer-suburban, and regional services from London Waterloo. They are used on all SWR lines except the non-electrified West of England Main Line and Eastleigh to Romsey Line.
On occasion Class 450 units are also used on the Portsmouth Direct Line for services between Waterloo and Portsmouth Harbour, in place of the intended Class 444. The difference in comfortTemplate:Sndparticularly the higher-density 2+3 seating arrangement used on the Class 450 fleetTemplate:Sndhas prompted complaints from some passengers affected by the substitution.<ref>Template:Cite news</ref>
Both the Class 444 and 450 fleets are maintained at the purpose-built Northam Traincare Facility in Southampton, which is equipped to perform both preventative and corrective maintenance, deep-cleaning, and overhauls on up to eight units simultaneously.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>
In March 2012, the Class 450 fleet, along with the Class 458 and 444 fleets, was fitted with regenerative braking.<ref>Template:Cite news</ref>
Class 450/2 and more ordersEdit
Originally, SWT's order with Siemens was for 100 four-car sets (the current 450/0) and 32 five-car sets, intended as Class 450/2 for inner-suburban use. The Strategic Rail Authority, however, did not agree to the terms required, such as the lengthening of platforms and changes to railway infrastructure. As a result, the 32 five-car sets were cancelled and the 160 vehicles redistributed; an extra 10 four-car sets were added to the SWT order, while the remaining 120 vehicles were then ordered as 30 four-car sets of the dual-voltage Template:Brc for Silverlink and Central Trains.
Subsequently, SWT received further 17 four-car sets, bringing the total number of Class 450 units up to 127.<ref name="Siemens Mobility" /> These trains were delivered in 2006, not long after the last of the first order was delivered.
Class 450/5 modificationsEdit
In January 2008, 28 Class 450/0 sets were modified and re-numbered in the Class 450/5 series, for use on services between Waterloo and Windsor, the Hounslow Loop Line, as well as between Waterloo and Weybridge. They had their first-class seating removed and replaced with 2+3 formation standard-class seating, and some other seats were removed to provide more standing capacity; extra handrails were also provided. The numbers modified are 450043 to 450070, which have become 450543 to 450570 respectively and displayed the letters HC (denoting 'High Capacity') above the unit number on the front of the sets. The modifications were carried out at the Bournemouth Traincare Depot.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>
In anticipation of the Class 458/5 modifications for use on the Windsor Lines, the 450/5 sub class had the First Class reinstated, and they are now used generally across the SWR routes. These trains retained their 4505xx number as the standard seating configuration remained different but as they completed their SWR interior refurbishment during late 2019 they were returned to their original numbers.
RefreshEdit
South Western Railway, as part of its franchise award in 2017, has carried out a refurbishment programme on its Class 450 fleet. As part of this, every unit has been deep cleaned with carpets and seat covers replaced and every two seats in standard class have had a plug socket fitted. The 24 first class seats carried in the centre of one of the intermediate trailers<ref name="tr">Template:Cite book</ref> were replaced with standard-class rows, while new first-class areas of eight seats each were installed immediately adjacent to each driver's cab. These areas feature new leather seats and tables with wireless charging facilities. As part of this work, subclass /5 high-capacity units have also been similarly refurbished, and returned to their original numbers, meaning that all Class 450s once again share a common layout.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>
Accidents and incidentsEdit
On 6 November 2017, unit 450025 was derailed near Template:Stn.<ref name=BBC41883153>Template:Cite news</ref> Four people were injured; over 300 passengers were evacuated from the train.<ref name=ITN061117>Template:Cite news</ref> The accident was caused by track spread (an increase in the distance between rails), and occurred on a Template:Convert stretch of line that had not been inspected or maintained for many years because of a misunderstanding between Network Rail and London Underground as to which company was responsible for its upkeep.<ref name="RAIBWimbledon">Template:Cite book</ref>
On 4 March 2024, unit 450092 was derailed between Template:Rws and Template:Rws stations when it struck an obstruction on the line whilst travelling at a speed of Template:Cvt. No-one was injured and the train was safely evacuated.<ref name=BBC68466494>Template:Cite news</ref><ref name=NRWokingTweet>Template:Cite tweet</ref>
Fleet detailsEdit
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| Class | Operator | Qty. | Year built | Cars per unit | Unit nos. |
|---|---|---|---|---|---|
| 450 | South Western Railway | 127 | 2002–2006 | 4 | 450001–450127 |
InteriorsEdit
- 450086 Standard Class Interior.jpg
Original standard-class interior in 2012
- 450086 First Class Interior.jpg
Original first-class interior in 2013
- SWR Class 450 First Class Interior.jpg
Refurbished first-class interior in 2020
IllustrationEdit
Named unitsEdit
Some units have been named:
- 450015 - Desiro<ref name="MLI"/>
- 450042 - Treloar College<ref name="MLI">Template:Cite magazine</ref>
- 450067 - Key Workers - also given a special livery<ref>Template:Cite magazine</ref>
- 450100 - Transport Benevolent Fund CIO<ref>Template:Cite magazine</ref>
- 450114 - Fairbridge Investing in the Future (de-named)<ref>Template:Cite magazine</ref>
- 450127 - Dave Gunson<ref>Template:Cite magazine</ref>
ReferencesEdit
External linksEdit
- Class 450 "Desiro" - South Western Railway
- Class 450 refurbishment by Angel Trains
Template:UK Desiro {{#invoke:Navbox|navbox}}