A Class 68 seen in February 2022 departing Warwick along with Mark 3 coaches and a DVT.
|Franchise(s)||21 July 1996 – 31 December 2027|
|Main route(s)||Chiltern Main Line|
|Stations called at||66|
|Parent company||Arriva UK Trains|
Chiltern Railways was founded as M40 Trains Limited by a group of ex-British Rail managers backed by John Laing and 3i; in June 1996, it was announced that M40 Trains had been awarded the Chiltern Railways franchise. On 21 July 1996, it took over operations from British Rail. The company promptly commenced the redoubling of the Chiltern Main Line under the Evergreen initiative and ordered the Class 168 Clubman diesel multiple units (DMUs) to supplement its ex-British Rail fleet. Following the awarding of a 20-year franchise to Chiltern Railways in August 2000, Evergreen phase 2 works begun to raise line speeds around Beaconsfield, built two new platforms at its London Marylebone terminus. In January 2010, a £250 million upgrade package was agreed for Evergreen phase 3, remodelling the line and permitting 100 mph operations, thus greatly reducing journey times.
In August 2002, the John Laing Group became the sole owner of Chiltern Railways after buying out all other shareholders; shortly after John Laing's purchase by Henderson Equity Partners, the company was sold to the German publicly owned railway company Deutsche Bahn in January 2008. Chiltern Railways became a subsidiary of Arriva UK Trains as a result of restructuring during early 2011. Around this time, Chiltern was considered one of the best railway operators in Britain, with Public Performance Measure (PPM) regularly over 90%. However, the introduction of new timetables during the 2010s was repeatedly received negatively by the travelling public. Severe disruption to Chiltern's services occurred following the collapse of Gerrards Cross Tunnel on 30 June 2005; an unplanned six week closure of the main line was forced, resulting in compensation being paid by Tesco to both Chiltern Railways and Network Rail.
Chiltern Railways operates commuter/regional rail passenger services from its central London terminus at Marylebone along the M40 corridor to destinations in Buckinghamshire, Oxfordshire and Warwickshire, as well as long-distance services to the West Midlands along two routes. Services on the Chiltern Main Line run from London to Birmingham Snow Hill, Stratford-upon-Avon and Oxford, with some peak-hour services extended to Kidderminster. Chiltern Railways also runs trains on the London–Aylesbury line to Aylesbury (some of which continue on to Aylesbury Vale Parkway), and on the Princes Risborough to Aylesbury and Oxford to Bicester branch lines. From December 2010, Chiltern began operating the Chiltern Mainline service of two peak-hour locomotive-hauled services consisting of a Class 67 hauling a rake of modernised Mark 3 coaches and a Driving Van Trailer.
Chiltern Railways originated with a number of former British Rail managers who sought to conduct a management buyout on one of the soon-to-be-created rail franchises that would be produced as a part of the privatisation of British Rail. In April 1995, they were granted a licence by the railway regulator. However, the team recognised that they lacked the resources to successfully pursue a bid, thus they secured the backing of the infrastructure investment group John Laing and the venture capital specialist 3i.
In October 1995, M40 Trains Limited which was established; the various railway managers held a combined 51% shareholding in the business, while the John Laing Group and 3i held 26% and 23% stakes respectively. The company reportedly spent £38 million in its bid for the Chiltern Railways franchise. In June 1996, the Director of Passenger Rail Franchising awarded the franchise to M40 Trains for an initial period of seven years. It was the only franchise operator to have as many as 51% of its shared controlled by its directors.
On 21 July 1996, the company commenced operations, taking over from the publicly owned British Rail. Chiltern Railways was the first railway franchise to order new rolling stock in the post-privatisation era in the form of the Class 168 Clubman diesel multiple units (DMUs). However, their introduction was marred by unreliability, in part due to their rushed entry into service in respond to booming passenger demand. By April 1999, the company claimed to employ 50% more staff than it had at the start of the franchise, and to be running 25% more services than had been operated by British Rail. Meanwhile, under the terms of the franchise agreement, the annual subsidy provided by the British government was gradually reduced.
During early 1999, the ownership of M40 Trains underwent substantial changes; the John Laing Group opted to increase its shareholding in the venture to 84% via the purchase of shares from their previous holders; the outstanding 16% of shares were owned by several members of the former British Rail management team.
During March 2000, the Shadow Strategic Rail Authority announced that both M40 Trains and the British transport group Go-Ahead had been shortlisted to bid for the next Chiltern franchise. In August 2000, M40 Trains was awarded the new franchise, which was set to run for 20 years, conditional on various investments being made across that period. On 3 March 2002, the new franchise period commenced.
In August 2002, John Laing acquired the remaining 16% of shares in M40 Trains that it did not already own. In September 2006, John Laing was purchased by the global investment firm Henderson Equity Partners in exchange for £887 million.
During December 2004, Chiltern Railways took over operation of passenger services on the Leamington Spa to Stratford-upon-Avon branch line from First Great Western Link. In June 2006, M40 Trains was invited by the Department for Transport to lodge a bid to operate the Snow Hill Lines, then operated by Central Trains, as part of the letting of the West Midlands franchise. However, this bid was not successful.
During mid-2005, Chiltern Railways' services were heavily disrupted by the collapse of Gerrards Cross Tunnel. In 1996, the British retailer Tesco sought to build a supermarket near Gerrards Cross railway station; despite the local council's initial objection to the scheme, it was approved by the Deputy Prime Minister John Prescott in July 1998. Due to a lack of available space, Tesco started building a tunnel over the active railway line to provide suitable land for the development. On 30 June 2005, the partially-constructed tunnel collapsed; nobody was injured, but a complete closure of the line was enacted for over six weeks before being permitted to reopen on 20 August 2005. Tesco paid an estimated £200 million of compensation to both Chiltern Railways and Network Rail for the disruption; the retailer also pledged to fund a media campaign to win back passengers lost by the route's unplanned closure.. The tunnel's construction resumed in January 2009. In late November 2010, the completed store was opened.
In July 2007, Henderson Equity Partners announced that its intention to sell on Laing Rail along with the Chiltern Railways franchise. Amongst the parties to express interest in acquiring the company were the transport groups Arriva and Go-Ahead. However, by December 2007, only the German publicly owned railway company Deutsche Bahn and the Dutch transport company NedRail reportedly remained in the bidding contest. In January 2008, Laing Rail was purchased by Deutsche Bahn; accordingly Chiltern Railways became a part of the DB Regio group. During early 2011, the company was restructured, with DB Regio becoming a subsidiary of Arriva UK Trains.
During May 2011, Chiltern took over operating services on the Oxford–Bicester line from First Great Western. On 26 October 2015, the company opened two new stations, Oxford Parkway and Bicester Village, providing services between north Oxford and London Marylebone. In December 2016, Chiltern Railways started running train services from Oxford to London Marylebone.
Chiltern Railways was one of several train operators impacted by the 2022 United Kingdom railway strike, which was the first national rail strike in the UK for three decades. Its workers were amongst those who participated in industrial action due to a dispute over pay and working conditions.
Chiltern Railways operates regular services on five routes.
The Chiltern Main Line is the core route for the majority of Chiltern Railways services and is one of two "mainline routes" operated by the company. The route links the major cities of London and Birmingham (Marylebone and Snow Hill stations respectively), passing through the towns of High Wycombe, Banbury, Royal Leamington Spa, Warwick and Solihull. Chiltern Railways operates trains along the entire line, services ranging from stopping suburban trains (e.g. London Marylebone – Gerrards Cross) to express trains running the full length of the line between London and Birmingham. The fastest timetabled journey from Birmingham to London by this route is 99 minutes (compared with 82 minutes using Avanti West Coast services between Birmingham New Street and London Euston via the West Coast Main Line). In addition to the Chiltern Railways services, CrossCountry also operates regular services on the line north of Banbury, and West Midlands Trains operates regular services north of Dorridge.
The London–Aylesbury line is the second "mainline route" operated by the company. The route links London (Marylebone) with Aylesbury via Amersham. All Chiltern Railways services on this route run the full length of the line between Marylebone and Aylesbury stations and call at all stations north of Amersham; most trains are extended one station further to Aylesbury Vale Parkway. The line runs alongside London Underground's Metropolitan line between Finchley Road (just north of Marylebone station) and Harrow-on-the-Hill, each operator running on separate tracks. Beyond Harrow-on-the-Hill, the tracks are shared between Chiltern Railways and Metropolitan line services. This is an example of National Rail services using non-Network Rail tracks, and it uses a unique unregulated track-access agreement with London Underground. Beyond Amersham (where the Metropolitan line terminates), all services are operated by Chiltern Railways only.
The other three routes regularly served by the company are all branch lines. The Aylesbury–Princes Risborough line links Princes Risborough, on the Chiltern Main Line, with Aylesbury, on the London to Aylesbury Line. Most trains on the line continue beyond Princes Risborough to London Marylebone, which gives Aylesbury an alternative route to reach central London; however, a few services terminate at Princes Risborough. The Oxford–Bicester line branches off the Chiltern Main Line just south of Bicester and links the town with Oxford. The line is mostly served by express services to and from Marylebone. Until December 2016, the line terminated a few miles northeast of Oxford, at the nearby Oxford Parkway station; the line was then extended to the main Oxford station. The Leamington–Stratford line branches off the Chiltern Main Line at Hatton (a few miles west of Leamington Spa) and runs to Stratford-upon-Avon. The branch line is also operated by regular West Midlands Trains services.
|London Marylebone to Birmingham Moor Street||1|
|London Marylebone to Birmingham Snow Hill||1|
|London - Oxford|
|London Marylebone to Oxford||1|
|Leamington - Stratford and Birmingham|
|Leamington Spa to Stratford-upon-Avon||1⁄2|
|Leamington Spa to Birmingham Moor Street||1⁄2|
|London - Aylesbury via High Wycombe|
|London Marylebone to Gerrards Cross||1|
|London Marylebone to Aylesbury||1|
|London - Aylesbury via Amersham|
|London Marylebone to Aylesbury||1|
|London Marylebone to Aylesbury Vale Parkway||1|
Extension to Kidderminster
At peak times on weekdays, some services between London Marylebone and Birmingham are extended beyond the latter, to and from Kidderminster (via Stourbridge Junction). These trains run to Marylebone in the morning peak and return towards Kidderminster in the evening peak. The trains also call at some stations between Birmingham Moor Street and Kidderminster, although not all services have the same calling pattern.
As of July 2016[update], there are four trains per day in each direction between Marylebone and Kidderminster, plus another one which is extended only as far as Stourbridge Junction. On Saturdays, there are also four morning trains from Kidderminster to Marylebone from the December 2017 return services in the evening were introduced. There were no Chiltern Railways service to Kidderminster on Sundays until the December 2017 timetable when two trains in each direction were introduced.
Regular trains between Birmingham Moor Street, Stourbridge Junction and Kidderminster are operated by West Midlands Trains as part of its Snow Hill route service.
- Cherwell Valley line: there is a single daily parliamentary service operating on the Cherwell Valley Line from Oxford to Banbury, operated by Chiltern Railways. This service runs on Tuesdays to Saturdays just after midnight and calls at Tackley, Heyford and Kings Sutton - the three intermediate stations on the line. There is no corresponding return service heading towards Oxford. This service exists to maintain route knowledge for Chiltern Railways' drivers. Regular services on the line are operated by Great Western Railway and CrossCountry.
- New North Main line/Greenford branch line: the company also operates a weekday parliamentary service to and from West Ealing in the late morning. As of August 2022[update], one train per week (on Wednesdays) starts from West Ealing, running via Greenford branch line until it leaves just beyond Greenford to join the single-track line parallel to London Underground's Central line formerly known as the New North Main Line, before terminating at West Ruislip. On other weekdays (Monday, Tuesday, Thursday and Friday) the train operates this route as an empty stock movement. The operational service does not call at any intermediate stations. Until December 2018, these services ran to and from London Paddington. They were then diverted to West Ealing following closure of the easternmost section of the New North Main line for High Speed 2 construction. The parlimentary service used to run a return service, with the returning service terminating at High Wycombe. At the start of the COVID-19 pandemic, the service was suspended until December 2021.
Buckinghamshire Railway Centre
On certain Bank Holiday Mondays, services are extended from Aylesbury to the Buckinghamshire Railway Heritage Centre facilities at Quainton Road, a short way north of Aylesbury Vale Parkway. However, this did not happen in 2019 and their future is uncertain. The link will continue to be used by freight services to Calvert.
Since winning the franchise, Chiltern has introduced "Route: High Wycombe" tickets for the Chiltern route between Birmingham and London that are considerably cheaper than "Route: Any Permitted" tickets, valid on the faster Avanti West Coast service to London Euston as well a number of other operators and routes. Chiltern offers only standard class, not standard and First Class as on Avanti services. However, Chiltern does offer a premium economy "Business Zone" carriage on a small number of peak-time trains between Birmingham or Oxford and London. Passengers pay an upgrade fee to sit in a larger first-class-style seat; and formerly, this upgrade came with complimentary refreshments but, since May 2017, refreshment services have been cut on all Chiltern Railways services, meaning the "Business Zone" no longer comes with complimentary refreshments.
Chiltern Railways' early operations were subject to considerable criticism. During 1998, its poor performance figures in criteria such as reliability, punctuality, and customer approval has led to financial penalties being incurred by the company, some of which was in the form of refunds to its passengers.
By the mid-2010s, Chiltern was considered one of the best railway operators in Britain, with Public Performance Measure (PPM) regularly over 90%, until the introduction of changes in November 2015, and infrastructure issues saw punctuality fall to 86% in December 2015. Chiltern's PPM is measured on stricter conditions than its long-distance rivals, such as Avanti West Coast, as Chiltern has a five-minute window for performance while others have a ten-minute window.
Performance figures published by Network Rail rate Chiltern Railways sixth in train operating companies in the UK at 89.4% (PPM – period 9) and 94.3% (MAA) for the year to 12 December 2015.
A new timetable introduced in September 2011, combined with significant disruption caused by engineering work, caused a negative reaction from customers. A petition to have the service reviewed was started, and articles describing the disrupted journeys of commuters appeared in the local press.
A new timetable introduced in December 2012 also met with frustration and opposition from some customers, particularly those using Saunderton and Princes Risborough stations.
Evergreen is the name given by Chiltern to the major infrastructure works that the company has committed to over the 20-year duration of its franchise to improve routes and services. This has been divided into three distinct phases.
The main focus of phase 1 was the redoubling of the Chiltern Main Line between Princes Risborough and Bicester North, with work taking place during 1998, as well as between Bicester North and Aynho Junction during 2001. Furthermore, several stations were subject to reconstruction works. Haddenham and Thame Parkway was rebuilt to have two operational platforms instead of a single platform; a new platform was also installed at Princes Risborough. Finally, the line speed limit was raised following appropriate infrastructure improvements.
Phase 2 commenced shortly following the award of Chiltern's 20-year franchise period in August 2000. The most extensive works undertaken was the realignment of the route through Beaconsfield, which permitted line speeds to be increased to 75 mph (121 km/h). Further improvements in this phase included the enactment of signalling improvements between High Wycombe and Bicester, as well as between Princes Risborough and Aylesbury, two new platforms were constructed at London Marylebone on land formerly occupied by the carriage sidings, while a new depot was constructed at Wembley.
Phase 1 of the project, now complete, involved upgrading the Marylebone – Birmingham Chiltern Main Line to permit 100 mph (160 km/h) running on an additional 50 miles (80 km) of route. Junctions at Neasden, Northolt and Aynho were remodelled to permit higher speeds. The 'up' through track has been restored at Princes Risborough, the existing 'up' line becoming a platform loop, a new turnback siding has been provided at Gerrards Cross, and a new, straighter 'down' through track built from Northolt Junction (where the original layout favoured the now little-used Paddington route) to Ruislip Gardens. The existing 'down' track continues to serve South Ruislip station. The former speed restrictions through Bicester North have been removed to permit 100 mph running. Two additional terminating platforms at Birmingham Moor Street were reopened in December 2010. Accelerated services were initially planned to start in May 2011, but there were delays and it was not until 5 September 2011 that Chiltern was able to introduce a new timetable to take advantage of the improvements.
As a result of the speed increases, journey times have been reduced significantly. From Marylebone, the fastest peak-hour journey time to Birmingham Moor Street is now 90 minutes, instead of 117 minutes previously. Chiltern Railways former chairman Adrian Shooter stated: "This is the biggest passenger rail project for several generations not to call on the taxpayer for support. Working closely with Network Rail, we are going to create a new main-line railway for the people of Oxfordshire and the Midlands. This deal demonstrates that real improvements to rail services can be paid for without public subsidy by attracting people out of their cars and on to trains."
The table below outlines the peak timetable improvements.
|Previous time||Post Phase 1 time|
|Birmingham (Moor Street)||117||92|
During October 2012, the Secretary of State for Transport granted permission for work to begin on Phase 2 of the Evergreen 3 project, with services between London Marylebone and Oxford. Under Phase 2, a quarter-of-a-mile double track has been constructed joining the Oxford–Bicester line at Bicester Village to the Chiltern Main Line, allowing a new Oxford to London Marylebone service to operate. A new station, Oxford Parkway, has been constructed at Water Eaton; the service between Oxford Parkway and London started on 26 October 2015, with the link from Oxford Parkway to Oxford becoming operational on 12 December 2016. All signalling on the route (including the new platforms at Oxford) is controlled by the Marylebone Signalling Centre.
As part of Phase 2, the Oxford to Bicester Village service transferred from First Great Western to Chiltern in May 2011. Part of the line between Wolvercote Tunnel (on the outskirts of Oxford) and Bicester Village was restored to double track, and the scheme included additional platforms at Oxford, Islip and Bicester Village.
Network Rail provided the capital for the upgrade and will recover this through a facility charge over the subsequent 30 years, initially payable by Chiltern until its franchise expires, and then by the next franchisee. The infrastructure upgrade was carried out by main contractor BAM Nuttall, in partnership with Jarvis and WS Atkins.
Oxfordshire County Council supported the scheme, but required convincing of the benefits of the new Oxford Parkway station at Water Eaton, which is in the Green Belt. In November 2011, there was a further setback to the project when a planning inspector withheld approval due to the discovery of bats roosting in Wolvercote Tunnel. Great crested newts also had a breeding habitat close to the route. In early 2012, the "bat problem" was apparently resolved.
Chiltern Railways inherited a fleet of 34 Class 165 Turbos diesel multiple units (DMUs) from British Rail. From the franchise's onset in July 1996, the company publicly promised to introduce new rolling stock. During December 2004, a further five Class 165s were transferred from First Great Western Link. Between 2003 and 2005, all 39 Class 165s were overhauled by Bombardier at Ilford EMU Depot; during this work, air conditioning units were installed throughout the fleet, while the hopper opening windows were removed; a first-class seating area was also implemented. As the fleet had been designed for suburban use, rather than InterCity travel, the Class 165s tend to be concentrated on services to Aylesbury and Banbury, although this stock can also be found operating the service between Birmingham and Leamington Spa.
Chiltern ordered several batches of Class 168 Clubman DMUs. Between 1998 and 2004, these entered revenue service, the company eventually operated nine three-car and ten four-car sets. These operate across the network.
During April 2003, Chiltern restored a single Class 121 Bubble Car for use on the Aylesbury to Princes Risborough shuttles. In May 2011, a second Class 121 followed after being overhauled at Tyseley TMD. During March 2013, a third Class 121 (121032) was acquired from Arriva Trains Wales for use as a spare parts donor. On 19 May 2017, the Chiltern Bubble cars ran for the last time, as their age made spare parts increasingly difficult to obtain.
In January 2008, Chiltern ordered four two-coach Class 172 Turbostars; these entered service during June 2011. Because they cannot be fitted with the tripcock safety equipment necessary to operate on London Underground lines, none of the Class 172s can operate via Amersham unless attached to a Class 165 or Class 168 DMU. Although initially intended for use on all-stations services out of London, they frequently operated as far afield as Birmingham. During mid-2021, all of Chiltern's Class 172s were leased to West Midlands Trains for use with their existing Class 172 fleet pending the delivery of British Rail Class 196 DMUs. In December 2021, it was later announced that the Class 172/1 fleet would not be returning to Chiltern once the Class 196s enter service with WMT.
Starting in December 2010, Chiltern began operating two peak-hour loco-hauled services consisting of a Class 67 diesel locomotive hauling a rake of Mark 3 coaches and a Driving Van Trailer. A single set was initially hired from fellow DB Regio subsidiary Wrexham & Shropshire to operate a Birmingham Moor Street to London Marylebone service while another was made up of some DB-Regio-owned Mark 3s painted in British Rail blue/grey and Virgin Trains livery and operated from Banbury to London Marylebone.
After Wrexham & Shropshire ceased operations in January 2011, Chiltern started using a second ex-Wrexham & Shropshire set from May 2011. For the introduction of Chiltern's new timetable in September 2011, these sets had a Mainline logo and blue stripes added to their silver livery. Motive power continued to be provided by several Class 67s, including 67010, 67012-015 and 67018, all of which had been modified to operate with Driving Van Trailers.
During 2012, the ex-Wrexham & Shropshire Mark 3 coaches were overhauled and fitted with sliding plug doors (similar to those fitted to South West Trains' Class 444 Desiros) and toilet retention tanks by Wabtec's Doncaster Works. Once this work was completed, a further ten Mark 3s were overhauled by Wabtec to create a fifth set and to extend the existing sets up to six coaches. In 2012, the DB-Regio-owned Mark 3s used on the peak-hour Banbury service were given a light overhaul at LNWR, Bristol, and the Virgin-liveried examples repainted into British Rail blue/grey. To allow Class 168s to be cascaded to the new Oxford services as part of Evergreen 3, more Mark 3s are to be returned to service in the future.
Between 2015 and 2016, Class 170 Turbostars with First TransPennine Express transferred to Chiltern Railways. Chiltern took five of the First TransPennine Class 170s from May 2015 and the remaining four in July 2016. Upon delivery, the Class 170s were modified to allow them to be used with Chiltern's existing Class 168s, and reclassified as Class 168/3s.
In early 2014, Chiltern Railways agreed a sub-lease from Direct Rail Services (DRS) for six Class 68 locomotives for use on its London Marylebone to Birmingham service to replace the existing fleet of Class 67s. Maintenance and commissioning for the new fleet is assisted by DRS.
During 2017, Chiltern Railways entered into an agreement with Artemis Intelligent Power and the Rail Safety and Standards Board to provide one of its redundant DVTs as a donor vehicle for conversion into a new type of diesel locomotive.
In July 2021, Chiltern Railways converted a single Class 168 unit (168329) into a Battery Hybrid train, referred to as "HybridFlex"; during February 2022, it was first run on services between London and Aylesbury. The company promoted the HybridFlex as increasing acceleration while reducing fuel consumption, vibration, and noise emissions, along with lessening the environmental impact of rail travel.
|Family||Class||Image||Type||Top speed||Carriages per unit/set||Number of units/vehicles||Routes operated||Built|
|Networker||165/0||DMU||75||120||2||28||All Chiltern Railways services (apart for Mainline services)||1990–1992|
|Bombardier Turbostar||168/0 Clubman||100||160||4||5||Chiltern Mainline and some local services||1998|
|168/1 Clubman||3||6||Chiltern Mainline and some local services||2000|
|4||2||Chiltern Mainline and some local services||2000|
|168/2 Clubman||3||3||Chiltern Mainline and some local services||2004|
|4||3||Chiltern Mainline and some local services||2004|
|168/3 Clubman||2||9||Chiltern Mainline and some local services||2000|
|Stadler UKLight||68||Diesel locomotive||100||160||6||8||Chiltern Main Line services||2014|
|Mark 3||Passenger carriage||125||200||25||1975–1988|
|Driving Van Trailer||Control car||6||1988|
Former train types operated by Chiltern Railways include:
|Class||Image||Type||Top speed||Carriages||Number||Routes operated||Built||Withdrawn|
|67||Diesel locomotive||125||200||N/A||5||Chiltern Main Line services||1999–2000||December 2014|
|121||DMU||70||112||1||2||Aylesbury–Princes Risborough||1959–60||19 May 2017|
|172/1||100||160||2||4||All Chiltern Railways services (apart for London-Amersham/Aylesbury line)||2011||May 2021|
In addition to the completed Evergreen initiatives, other potential enhancements for Chiltern's route have been discussed, but had not progressed as at the end of 2017. These include:
- Upgrading the Acton–Northolt line (formerly the "New North Main Line") to new platforms at Old Oak Common. This upgrade will also extend to London Paddington to increase capacity on the Chiltern Main Line as there is no room to expand the station at Marylebone.
- Restoration of fast through lines at Beaconsfield as part of a longer-term aspiration for a 90-minute journey time between London and Birmingham.
- Remodelling Banbury Station and tracks.
- Building of the West Hampstead interchange to allow easy interchange with the London Overground - North London Line, Jubilee line, Metropolitan line and Thameslink services.
- New Chiltern Metro Service that would operate more than four trains per hour for Wembley Stadium, Sudbury & Harrow Road, Sudbury Hill Harrow, Northolt Park, South Ruislip and West Ruislip. This would require a reversing facility at West Ruislip, passing loops at Sudbury Hill Harrow, and a passing loop at Wembley Stadium (part of the old down fast line is in use as a central reversing siding, for stock movements and additionally for eight-car football shuttles to convey passengers to the stadium for events). This 'Chiltern Metro' service was not programmed into the last round of franchising agreements.
- Re-opening the passenger line between Oxford and Bedford as part of the East West Rail project, and from Aylesbury to East West Rail at Claydon LNE Junction to provide a route to Milton Keynes and the West Coast Main Line via Bletchley. Two miles of the line north of Aylesbury re-opened on 14 December 2008, terminating at a new station, Aylesbury Vale Parkway. However, during late 2017, the Government announced that the private company, East West Rail Company, had been formed to build and operate the line exclusively.
- Opening a rail line from Aylesbury to an M6-M1 Parkway Station near Rugby.
- Extending Oyster Pay-as-you-go to High Wycombe and Aylesbury.
Since successful completion of Project Evergreen 3 has fulfilled Chiltern Railways' obligation to invest in infrastructure, there is no clear road to completion for these projects.
- Chiltern Main Line
- London–Aylesbury line
- Varsity Line
- Deutsche Bahn, Chiltern Railways' owner
- London Midland
- ^ "Chiltern Railways awarded new six-year contract". BBC News. 4 December 2021. Retrieved 4 December 2021.
- ^ "The Chiltern Railway Company Limited, company no. 3007939". Companies House. Retrieved 4 July 2022.
- ^ a b c d e f g h i Stokdyk, John (14 April 1999). "Full steam ahead". Accountancy Age.
- ^ Shooter 2022, pp. 24-26.
- ^ "M40 Trains Limited, company no. 3005018". Companies House. Retrieved 4 July 2022.
- ^ a b "M40 to put new stock on Chiltern". The Independent. London. 26 June 1996.
- ^ Stokdyk, John (1 March 1999). "Fat cat row in Chiltern bid". Accountancy Age.
- ^ "Six Companies Shortlisted for First Franchise Replacement Round". Shadow Strategic Rail Authority. 14 March 2000.
- ^ "Go-Ahead shortlisted for Chiltern and South Central rail franchises". Go-Ahead Group. 14 March 2000.
- ^ "Laing Rail to Build upon Chiltern Success". John Laing. 10 August 2000.
- ^ "Chiltern Railways to Ride Again". Coventry & Warwickshire News. 10 August 2000.
- ^ "Chiltern wins first 20-year franchise". The Guardian. 19 February 2002.
- ^ "Review (proof 2)" (PDF). John Laing. Retrieved 23 November 2012.
- ^ "Laing accepts £887m takeover bid". BBC News. 19 September 2006.
- ^ "Bidders announced for rail franchises". New Civil Engineer. 19 September 2006.
- ^ "Department for Transport Announces Winner of West Coast Franchise" (Press release). Department for Transport. 21 June 2007.
- ^ a b Glancey, Jonathan (25 August 2005). "In a hole". The Guardian. London. Retrieved 17 June 2009.
- ^ Hansford, Mark (15 January 2009). "Tesco restarts work at tunnel collapse site". New Civil Engineer. London. Retrieved 6 May 2009.
- ^ Abell, Jack (3 December 2010). "Tesco finally opens its doors". Buckinghamshire Advertiser. Uxbridge. Archived from the original on 17 August 2011. Retrieved 13 December 2010.
- ^ "Chiltern Railways is on the market". Railnews. Stevenage. 31 July 2007. Archived from the original on 8 November 2007. Retrieved 10 September 2007.
- ^ Milmo, Dan (7 September 2007). "Arriva poised to bid for Chiltern". The Guardian. London. Retrieved 8 September 2007.
- ^ "Go-Ahead interested in Chiltern Railways bid – CEO". Reuters. 7 September 2007. Retrieved 8 September 2007.
- ^ O'Connell, Dominic (9 December 2007). "Rail rivals line up Chiltern". The Sunday Times. London.
- ^ "Deutsche Bahn and NedRail line up Chiltern". business-sale.com. 11 December 2007.
- ^ "Deutsche Bahn announces acquisition of Laing Rail" (Press release). Chiltern Railways. 21 January 2008. Archived from the original on 13 May 2008. Retrieved 22 January 2008.
- ^ "Deutsche Bahn buys Laing Rail". Construction News. 21 January 2008.
- ^ "Review of the year to 31 December 2010: Strongly positioned for future growth" (Press release). Arriva. 3 May 2011.
- ^ a b "Oxford to Bicester Town Service Change of Train Operator". First Great Western. Archived from the original on 21 April 2011. Retrieved 28 April 2011.
- ^ "Chiltern Railways takes over Bicester to Oxford services" (Press release). Chiltern Railways. 28 April 2011. Archived from the original on 23 July 2012.
- ^ "Chiltern Railways launches Oxford Parkway service". Railway Gazette International. London. 26 October 2015. Retrieved 21 April 2021.
- ^ "Chiltern Railways announces Oxford city centre to London Marylebone launch date" (Press release). Chiltern Railways. 2016. Retrieved 21 April 2021.
- ^ "Rail strike: RMT union votes for national action". BBC News. 24 May 2022. Retrieved 24 May 2022.
- ^ "The dates of the train, Tube and bus strikes this week, and how services will be affected". inews.co.uk. 20 June 2022. Retrieved 24 June 2022.
- ^ a b c d e "May - December 2019 timetables". Chiltern Railways. Retrieved 4 July 2022.
- ^ Yonge, John (November 2008) . Jacobs, Gerald (ed.). Railway Track Diagrams 5: Southern & TfL (3rd ed.). Bradford on Avon: Trackmaps. maps 41C, 42A, 42B, 43A. ISBN 978-0-9549866-4-3.
- ^ a b "Chiltern Oxford Launch" (Press release). Chiltern Railways. Archived from the original on 16 May 2016. Retrieved 20 January 2016.
- ^ "Route Map". Chiltern Railways. Retrieved 15 June 2020.
- ^ "2M27 1117 West Ealing to West Ruislip". Real Train Times. 18 August 2022.
|archive-url=is malformed: save command (help)
- ^ "5M32 1117 West Ealing to West Ruislip". Real Train Times. 11 August 2022. Archived from the original on 11 August 2022.
- ^ "2V27 1057 South Ruislip to London Paddington". Real Train Times. 7 December 2018. Archived from the original on 5 December 2018.
- ^ "2M29 1135 London Paddington to High Wycombe". Real Train Times. 7 December 2018. Archived from the original on 5 December 2018.
- ^ "Riding the Parliamentary Train out of Paddington". IanVisits. 8 May 2017. Retrieved 8 December 2017.
- ^ "Timetable" (PDF). Chiltern Railways. 9 December 2017.
- ^ "Faq categories - Chiltern Railways". www.chilternrailways.co.uk.
- ^ Murray, Dick (16 May 2017). "Chiltern Railways axes all on-board catering". www.standard.co.uk.
- ^ "Proportion of trains running on time". GOV.UK.
- ^ "Chiltern Railways admits problems". BBC News. 16 November 2015.
- ^ "Performance". Archived from the original on 8 December 2015. Retrieved 26 December 2012.
- ^ "Rail performance results period 9". Network Rail. Archived from the original on 8 December 2015. Retrieved 26 December 2012.
- ^ Dunhill, Lawrence (24 September 2011). "Beaconsfield commuters say new Chiltern line is 'misery'". Bucks Free Press. High Wycombe. Retrieved 5 October 2011.
- ^ Cain, Rebecca (4 January 2011). "Commuters call for a return to a better train service". Bucks Free Press. Princes Risborough. Retrieved 27 January 2013.
- ^ "Display Report | Office of Rail Regulation - National Rail Trends Portal". Dataportal.orr.gov.uk. Archived from the original on 8 November 2016. Retrieved 15 October 2018.
- ^ "Display Report - Office of Rail Regulation - National Rail Trends Portal". dataportal.orr.gov.uk. Office of Rail and Road.
- ^ a b "Chiltern Renaissance – The Evergreen Success". Rail.co. 26 October 2011.
- ^ a b c "£250 investment from Chiltern Railways creates new main line" (PDF) (Press release). Chiltern Railways. 15 January 2010. Archived from the original (PDF) on 2 March 2012.
- ^ "£250m Rail Investment to Bring Much Faster Journeys for Chiltern Passengers" (Press release). Network Rail. 15 January 2010. Archived from the original on 5 May 2013.
- ^ a b "Evergreen 3 progress". Modern Railways. London. December 2010. p. 9.
- ^ "Chiltern Railways plan to make Bicester well connected". Railnews. Stevenage. 29 August 2008. Retrieved 7 September 2008.
- ^ "Project Evergreen 3". Chiltern Railways. 2009. Archived from the original on 28 August 2009. Retrieved 6 February 2009.
- ^ "Chiltern Railways given green light to build new rail line between Oxford and London" (Press release). Chiltern Railways. 18 October 2012. Archived from the original on 24 January 2013. Retrieved 18 November 2012.
- ^ McGregor, Sam (19 October 2012). "New £130m rail link to London approved". Oxford Mail.
- ^ "Chiltern Railways announces £250m improvements and new main line to be built by BAM Nuttall". London: New Civil Engineer. 15 January 2010.
- ^ "BAM Nuttall lands £190 million Evergreen 3 Contract for Chiltern Railways" (Press release). Camberley: BAM Nuttall. January 2010. Archived from the original on 31 August 2011. Retrieved 20 October 2012.
- ^ "Rail link plan runs into problems". Oxford Mail. 15 September 2009. Retrieved 10 October 2009.
- ^ Little, Reg (17 November 2011). "Rail line hits buffers amid bat risk fear". The Oxford Times. p. 1.
- ^ "Chiltern Railways: Oxford–London line statement". 8 March 2012. Archived from the original on 19 April 2012. Retrieved 18 April 2012.
- ^ "Thames 165s on their way to Chiltern". Rail. No. 487. 12 May 2004. p. 27.
- ^ "Our Train Fleet". Chiltern Railways. Archived from the original on 17 July 2012. Retrieved 20 October 2012.
- ^ "Chiltern axes First Class seating". Rail. No. 452. 8 January 2003. p. 57.
- ^ "It's one class only on Chiltern". Entrain. No. 14. February 2003. p. 10.
- ^ "Unique revamped Class 121 enters service for Chiltern". Rail. No. 460. 30 April 2003. p. 60.
- ^ "BR green 'bubble car' headlines £1million upgrade by Chiltern". Rail Express. 27 May 2011. Archived from the original on 16 October 2013. Retrieved 20 October 2012.
- ^ "Class 121 Driving Motor Brake Second (Returned to Mainline use)". The Railcar Association.
- ^ "First Generation DMU era ends as Chiltern Bubblecars head for retirement". The Railway Magazine. No. 1395. June 2017. p. 8.
- ^ "Angel Trains orders 'Green Trains' for the UK Rail Market" (Press release). Angel Trains. 31 January 2008. Archived from the original on 16 October 2013. Retrieved 20 October 2012.
- ^ a b "CHILTERN '172s' MOVE TO WEST MIDLANDS". www.modernrailways.com. 20 May 2021. Retrieved 30 January 2022.
- ^ "The 172 style trains will not be coming back to us, the silver sets will be back in action as soon as repairs have been completed". Twitter. Chiltern Railways. 23 September 2021. Archived from the original on 24 September 2021. Retrieved 4 December 2021.
- ^ "Chiltern commence Birmingham loco-hauled". Rail Express. 14 December 2010. Archived from the original on 16 October 2013. Retrieved 20 October 2012.
- ^ "Chiltern mounts Silver Trains Challenge to Virgin". Railnews. 5 September 2011.
- ^ "Chiltern Railways puts refurbished Mk 111 coaches into service". Railway Gazette International. 31 May 2012.
- ^ Comfort, Nick; Pritchard, Robert (2010). "Marylebone-Birmingham expresses from December". Today's Railways. Sheffield (99): 7.
- ^ "Campaigners' fury as nine TransPennine Express trains sent south in 'crazy and scandalous' move". Manchester Evening News. 3 March 2014.
- ^ Wilson, James (9 January 2015). "Train users in Mid Cheshire suffer capacity setback". Knutsford Guardian. Retrieved 28 February 2015.
- ^ "Chiltern leases six Class 68 locos for Mainline services in £15m deal". Rail Technology Magazine. 15 April 2014. Retrieved 12 August 2014.
- ^ "RSSB funds powertrain demonstrator". London: Rail Safety and Standards Board. 10 March 2017. Archived from the original on 22 August 2018. Retrieved 21 August 2018.
- ^ Lancefield, Neil (10 February 2022). "UK's first 100mph battery-diesel hybrid train enters passenger service". www.standard.co.uk.
- ^ "First battery-diesel hybrid train runs between London and Aylesbury". BBC News Online. 10 February 2022. Archived from the original on 11 February 2022. Retrieved 11 February 2022.
- ^ "Cutting Emissions – cleaner, greener Turbostars". railengineer.co.uk. 26 April 2022.
- ^ "Angel Trains orders 'green trains' for the UK rail market". railtechnologymagazine.com. 15 April 2014.
- ^ "Passenger Board Annual Report 08/09" (PDF). Chiltern Railways. 24 June 2009. Archived from the original (PDF) on 29 December 2009.
- ^ "Coaching Stock Design Contract for Chiltern Railways". Railway Technology. 21 July 2009.
- ^ "Retirement of the Class 121 "Bubble Car"" (Press release). Chiltern Railways. Retrieved 12 July 2017.
- ^ "Angel Trains orders 'green trains' for the UK rail market" (Press release). Angel Trains. 31 January 2008.[permanent dead link]
- ^ "Chilterns Route Study to tackle capacity challenges". Rail Magazine. 5 July 2016.
- ^ Development of Train Services for Chiltern Routes (Draft Publication February 2011) (PDF)
- ^ "Longer trains, new track, upgraded stations - planning for future demand for rail travel in the West Midlands and Chilterns". Network Rail media centre. 4 July 2016.
- ^ "West Midlands and Chilterns Route Study Summary" (PDF). Network Rail. Archived from the original (PDF) on 24 September 2017. Retrieved 8 June 2018.
- ^ West Midlands & Chilterns Route Study Advice and choices for funders (PDF) (Report). Network Rail. August 2017. p. 80. Retrieved 2 March 2018.
- ^ "Route plans 2008: Route 16: Chilterns" (PDF). Network Rail. April 2008. p. 12. Archived from the original (PDF) on 20 March 2009. Retrieved 31 July 2008.
- ^ "Route plans 2007: Route 17: West Midlands" (PDF). Network Rail. 2007. p. 35.
- ^ "Planning Framework for West Hampstead Interchange Area Appendix 2". London Borough of Camden. 19 April 2005. p. 25. Archived from the original on 11 June 2011. Retrieved 26 February 2017.
- ^ "There's more to Chiltern than the Chilterns – The Case for a Chiltern Metro". London Travel Watch. January 2001. Archived from the original on 11 March 2007.
- ^ Buggins, Arryn (10 August 2000). "Bid To Reopen Central Railway To Passengers". CWN. Coventry. Retrieved 15 April 2008.
- ^ "Services at Aylesbury's new train station to begin on Sunday". The Bucks Herald. Aylesbury. 9 December 2008. Archived from the original on 2 August 2012.
- ^ "Chancellor accepts East West Rail targets and strengthens plans with extra cash". www.railtechnologymagazine.com.
- ^ "Transport Secretary officially launches East West Railway Company at Bletchley Park". East West Rail. 22 November 2017.
- ^ Buggins, Arryn (11 August 2000). "The Next Train Calling at Rugby... Could be Chiltern". CWN. Coventry. Retrieved 15 April 2008.
- ^ "Exciting times ahead for passengers using Chiltern Railways!" (Press release). Chiltern Railways. 22 January 2007. Archived from the original on 8 May 2009. Retrieved 2 January 2009.
- ^ "Private Sector Specification and Delivery of Enhancement" (PDF). International Council on Systems Engineering. 22 June 2010.
- Shooter, Adrian (5 May 2022). Chiltern Railways: The Inside Story. Pen and Sword Transport. ISBN 978-1526792525.
- Holley, Mel (11–24 February 1998). "The quiet revolution". Rail. No. 324. EMAP Apex Publications. pp. 26–29. ISSN 0953-4563. OCLC 49953699.
- Official website
- Evergreen 3 Project
|Preceded by|| Operator of Chiltern franchise |