The Hitachi A-train is a family of rail rolling stock built and designed by Hitachi Rail using a common base and construction techniques. The stock is designed to facilitate a number of product life-cycle improvements including ease of manufacture, increased energy efficiency, and recyclability.
The "A-train" design concept includes several elements. The primary feature is that vehicle car bodies are constructed from double skin aluminium extruded sections, which are friction stir welded, [1] creating a strong body. Other features include hollow, extruded mounting rails on the vehicle body to which modular components are attached. [2]
Initially the A-train family consisted of multiple units designed and built by Hitachi, for use on the railway system in Japan. It comprises trains for both commuter and limited express services. The modular design enables both production and refurbishment to be undertaken faster. [2] Due to the low heat input of friction stir welding, high strength, excellent crashworthiness and minimal distortion can be achieved.
Hitachi has provided a number of trains based on the A-train concept for use in Japan: [3]
For their products overseas, the Hitachi A-train has different designations by Hitachi depending on their type. [4] [5]
Hitachi have been marketing the A-train family overseas. Both the Chongqing Monorail in China and the Sentosa Express Monorail in Singapore utilise A-train derived cars.
In 2005 Hitachi received an order from Taiwan Railway Administration (TRA) for six 8-car trains, based on the Japanese 885 series, designated as TEMU1000, for operation on the main line between Taipei and Hualien. [6] Deliveries of the trains began in late 2006, with the first public test of the new trains in March 2007. [7] [8] Two more sets were purchased in December 2014, and delivered in early 2016. [9]
In 2007, Korail ordered eight 4-car express trains branded as the Trunk-Line Electric Car (TEC) to Hitachi. The car bodies, bogies and power systems were made in Japan, but were assembled at SLS Heavy Industry in Changwon, Korea. A significant number of the components were replaced by Korean parts. The trains were for deployment on "Rapid Train" services on the Gyeongbu Line and Janghang Line between Seoul Station and Sinchang station, branded Nuriro and with a maximum speed of 150 km/h (93 mph).
In 2018, the Taiwan Railway Administration placed a new order for 50 12-car EMU3000 series sets, to be delivered between 2021 and 2024. [10] The first set was delivered on July 31, 2021, with service entry scheduled for the end of the year. [11]
Between 2019 and 2021, the first Hitachi AT100 units arrived in Bangkok for the SRT Dark Red Line and SRT Light Red Line, which opened on 2 August 2021. These trains are coloured red, and are very reminiscent of a typical Japanese commuter train. 15 units form 6-car sets, while 10 form 4-car sets.
The United Kingdom became the first country outside Japan to place a major conventional rail order for Hitachi when Southeastern ordered 29 electric multiple units for use on domestic services on the High Speed 1 line. These are designated as Class 395 units, which are standard gauge with the ability to operate at speeds of up to 225 km/h (140 mph). [2] Southeastern branded these trains as the Javelin, a reference to the 2012 Summer Olympics. [12]
Hitachi gained further ground in the UK market when it was announced in 2009 that an A-train based design similar to that of the Class 395, initially named the Hitachi Super Express, was the preference for the government's Intercity Express Programme tender to replace InterCity 125 and InterCity 225 sets on the Greater Western and InterCity East Coast lines. These units were classified as Class 800 electro-diesel 'bi-mode' units (powered by AC overhead wires where available, and by underfloor diesel generators beyond the extents of electrification) and Class 801 electric multiple units sets powered purely by AC overhead wires. The train specification allows for the conversion of Class 800s to Class 801s, as it is assumed that electrification will continue to expand. [13] The units would form as part of the Hitachi AT300 product, joining the Class 395 in the same family.
The choice of Hitachi units was controversial, as it would see little final manufacturing in the UK in comparison to the foreign-owned but domestically manufactured Bombardier option, [14] leading to a campaign to reverse the decision. However, it was economics that became a sticking point, with the weight of the design creeping up (though some accused the Department for Transport of producing impossible specification requirements) and reportedly difficult negotiations over the final unit price and production balance between the different power options. The inability or reluctance of the financial markets to provide the necessary capital was the final straw, leading to the announcement in February 2010 of a three-month independent review into the value for money of the programme. [15]
After winning the franchise, Abellio ScotRail announced they would purchase Hitachi AT200 trains (designated as Class 385) for their commuter services. [16]
In March 2015, after the initial order of the Class 800 units, Great Western Railway (or First Great Western as it was at the time) ordered 29 bi-mode Class 802 units which would also join the AT300 product. These units have little difference over the Class 800 units, except that the 802s have a higher power output as-built to cope with gradients in Devon and Cornwall, and have larger fuel tanks. Being bi-mode, they will use overhead electric power between London Paddington and Newbury stations. [17] Having initially ordered 29 units, it was later announced that there would be an increase of up to 36 units on order. The first of the Class 800s entered service with GWR in October 2017 and the first of the Class 802s entered service with GWR in August 2018, with all of the units branded as Intercity Express Trains (IET) by GWR. [18] [19]
The first unit with London North Eastern Railway (the current holder of the InterCity East Coast franchise) entered service in May 2019 after a delay, with their first trains in service being Class 800s. Their Class 801s entered service afterwards in September 2019. Separately from GWR, these trains are branded as Azuma, which is 'east' in Japanese. [20]
Many other UK operators have bought Hitachi AT300 trains, including orders for Class 802 units by TransPennine Express (branded as Nova 1) and Hull Trains (branded as Paragon). [21] [22] East Midlands Railway have ordered Class 810 units (branded as Aurora), Lumo purchased Class 803 units and Avanti West Coast have ordered Class 805 and Class 807 units. [23] [24] [25]
| Class | Image | Type | Power | Operator | Brand | No. built /on order | Cars per set | Unit nos. | Year built |
|---|---|---|---|---|---|---|---|---|---|
| 385/0 |  | AT200 | EMU | ScotRail | eXpress | 46 | 3 | 385001-385046 | 2015-2019 |
 | |||||||||
| 385/1 |  | ScotRail | eXpress | 24 | 4 | 385101-385124 | 2015-2019 | ||
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| 395 |  | AT300 [26] | Southeastern | Javelin | 29 | 6 | 395001-395029 | 2007-2009 | |
 | |||||||||
| 800/0 |  | Bi-mode | Great Western Railway | Intercity Express Train (IET) | 36 | 5 | 800001-800036 | 2014-2018 | |
 | |||||||||
| 800/1 |  | London North Eastern Railway | Azuma | 13 | 9 | 800101-800113 | 2014-2018 | ||
 | |||||||||
| 800/2 |  | London North Eastern Railway | Azuma | 10 | 5 | 800201-800210 | 2014-2018 | ||
 | |||||||||
| 800/3 |  | Great Western Railway | Intercity Express Train (IET) | 21 | 9 | 800301-800321 | 2014-2018 | ||
 | |||||||||
| 801/1 |  | EMU | London North Eastern Railway | Azuma | 12 | 5 | 801101-801112 | 2017-2019 | |
 | |||||||||
| 801/2 |  | London North Eastern Railway | Azuma | 30 | 9 | 801201-801230 | 2017-2019 | ||
 | |||||||||
| 802/0 |  | Bi-mode | Great Western Railway | Intercity Express Train (IET) | 22 | 5 | 802001-802022 | 2017-2019 | |
 | |||||||||
| 802/1 |  | Great Western Railway | Intercity Express Train (IET) | 14 | 9 | 802101-802114 | 2017-2019 | ||
 | |||||||||
| 802/2 |  | TransPennine Express | Nova 1 | 19 | 5 | 802201-802219 | 2018-2019 | ||
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| 802/3 |  | Hull Trains | Paragon | 5 | 5 | 802301-802305 | 2019 | ||
 | |||||||||
| 803 |  | EMU | Lumo | None | 5 | 5 | 803001-803005 | 2020-2021 | |
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| 805 |  | Bi-mode | Avanti West Coast | None | 13 | 5 | 805001-805013 | 2020-Present | |
 | |||||||||
| 807 | EMU | Avanti West Coast | None | 10 | 7 | 807001-807010 | 2020-Present | ||
 | |||||||||
| 810 |  | Bi-mode | East Midlands Railway | Aurora | 33 | 5 | 810001-810033 | 2020-Present | |
Commuter rail, or suburban rail, is a passenger rail transport service that primarily operates within a metropolitan area, connecting commuters to a central city from adjacent suburbs or commuter towns. Commuter rail systems are considered heavy rail, using electrified or diesel trains. Distance charges or zone pricing may be used.
A diesel multiple unit or DMU is a multiple-unit train powered by on-board diesel engines. A DMU requires no separate locomotive, as the engines are incorporated into one or more of the carriages. Diesel-powered single-unit railcars are also generally classed as DMUs. Diesel-powered units may be further classified by their transmission type: diesel–mechanical DMMU, diesel–hydraulic DHMU, or diesel–electric DEMU.
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North Pole depot is a railway and maintenance depot built for Great Western Railway's AT300 units from the Hitachi A-train family. Located in the London Borough of Hammersmith and Fulham, the depot was partially redeveloped by Agility Trains from 2013 as a maintenance site when they were awarded the Intercity Express Programme.
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The Intercity Express Programme (IEP) is an initiative of the Department for Transport (DfT) in the United Kingdom to procure new trains to replace the InterCity 125 and InterCity 225 fleets on the East Coast Main Line and Great Western Main Line. These new trains would be built by Hitachi as part of their A-train family, classified as Class 800 electro-diesel units and Class 801 electric multiple units. Hitachi designated the units as the AT300 family, which is their Intercity High Speed fleet. Other AT300 units have also been ordered for other train operating companies, which are not part of the IEP.
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The British Rail Class 800 – branded by Great Western Railway (GWR) as Intercity Express Train (IET), and by London North Eastern Railway (LNER) as Azuma – is a type of bi-mode multiple unit train built by Hitachi Rail for GWR and LNER. The type uses electric motors powered from overhead electric wires for traction, but also has diesel generators to enable trains to operate on unelectrified track. It is a part of the Hitachi AT300 product family.
The British Rail Class 801 Azuma is a type of electric multiple unit (EMU) built by Hitachi Rail for London North Eastern Railway. The units have been built since 2017 at Hitachi's Newton Aycliffe Manufacturing Facility and have been used on services on the East Coast Main Line since 16 September 2019. As part of its production, the Class 801 units were ordered as part of the Intercity Express Programme and are in the Hitachi AT300 product family, alongside the closely related Class 800 units. LNER have branded the units as the Azuma, just like on their Class 800 units.
The British Rail Class 802 is a type of high-speed bi-mode multiple-unit passenger train designed and produced by the Japanese manufacturer Hitachi Rail. It has been operated by Great Western Railway, TransPennine Express, and Hull Trains; each of these train operating companies has given its own units a unique brand: Great Western Railway's units are branded Intercity Express Trains (IETs), TransPennine Express units are branded Nova 1s and Hull Trains' units are branded Paragons.
The British Rail Class 810 Aurora is a type of bi-mode multiple unit being constructed by Hitachi Rail for East Midlands Railway. Based on the Hitachi AT300 design, 33 five-car units will replace Class 222 units on EMR's intercity routes.
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