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KA Commuter Jabodetabek, commonly known by its former name KRL Jabodetabek, is a commuter rail system in the Jakarta metropolitan area in Indonesia. The commonly used term of KRL Jabodetabek is an acronym for "Kereta Rel Listrik Jakarta Bogor Depok Tangerang Bekasi" translated as "Jabodetabek's Electric Trains". KA Commuter serves commuters in Jakarta, Bogor, Depok, Tangerang, South Tangerang, and Bekasi. The current rolling stock are mostly ex-Tokyo Metro, Toei Subway, Japan Railways and Tokyu trains and some are from PT Industri Kereta Api (PT INKA) a subsidiaries of PTKA, Indonesian National Railways Company. KA Commuter Jabodetabek are operated by PT KAI Commuter Jabodetabek (PT KCJ), another subsidiaries of PTKA. ==History== In 1923, before Indonesian declaration of independence, ''Staats Spoorwegen (SS)'', a Dutch colonial railways company, built the first electrified railway from Tanjung Priok to ''Meester Cornelis'' (Jatinegara) and began operation in 1925 with 3000 series locomotives from SLM–BBC (Swiss Locomotive and Machine Works - Brown Boveri & Cie), 3100 series electric locomotives from AEG Germany, 3200 series locomotives from Werkspoor Netherlands and passenger coaches from Westinghouse and General Electric. The electrification project continued in 1927 in an existing railway which served around Batavia and neighboring cities. After independence in 1945, the railway operation was taken over by ''Djawatan Kereta Api Repoeblik Indonesia'' (Indonesian Railways Bureau, now PT Kereta Api). In 1976, the old locomotives and coaches were replaced with electric trains from Japan. The commuter system was started in 2000, integrating railway lines covered under PTKA's Division of First Operational Areas (''Daop 1 Jakarta'') and the said area was taken under its subsidiary, PT KAI Commuter Jabodetabek, in 2008. The modernization of the commuter railway system was started in 2011, which reduced the number of lines from 37 to 6 current integrated lines, removal of express class services, and simplifying the classes into 2 train classes (Economy class or non-air-conditioned train which is subsidized by Ministry of Transportation and Commuter class or air-conditioned train) which stops at every station. Due to extreme crowding, unruly passengers (colloquially called Atappers) had been riding on top of the trains ''en masse'', but that has since been brought under control with physical barriers. In July 2013, the operator introduced the Commet (Commuter Electronic Ticketing) system replacing the old paper ticket system and changing the old fare system into 'progressive fare' system, as well as modernization of all 80 serving stations. To improve passenger comfort, all non-airconditioned Economy class services are discontinued and replaced with air-conditioned train services. Starting on April 1, 2015 the trip per day become 872 which mostly are still dominant by Bogor/Depok route and Bekasi route with 391 trips and 153 trips per day, respectively. Headway of Bogor route is 5 minutes, while Bekasi route is still 12 minutes.〔(【引用サイトリンク】title=Penambahan Jadwal Commuter Line dan Ancaman Kemacetan )〕 In July 2015, KA Commuter Jabodetabek served more than 850,000 passengers per day, which is approaching triple the 2011 figures, but still less than 3.5% of all Jabodetabek commutes.〔(【引用サイトリンク】title=PT KCJ: Keterlambatan KRL Sudah di Bawah 10 Menit )〕 It is predicted will serve 1.2 million passengers per day in 2019.〔(【引用サイトリンク】title=2014, Sebanyak 200 Juta Orang Naik Kereta Jabodetabek )〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「KA Commuter Jabodetabek」の詳細全文を読む スポンサード リンク
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