106-568: PT Kereta Api Indonesia (Persero) ( lit. ' Indonesian Railways (State-owned) Limited ' , abbreviated as PT KAI or simply KAI ) is a major railway operator in Indonesia and one of the public railway companies in the country. It is state-owned and pays track access charges. Its headquarters are located in Bandung , West Java . In 2019, KAI carried 429 million passengers and 47.2 million tonnes of cargo. Kereta Api Indonesia
212-531: A special autonomous status ( otonomi khusus ) from the central government. Aceh, a conservative Islamic territory , has the right to create some aspects of an independent legal system implementing sharia . Yogyakarta is the only pre-colonial monarchy legally recognised within Indonesia, with the positions of governor and vice governor being prioritised for the reigning Sultan of Yogyakarta and Duke of Pakualaman , respectively. The six Papuan provinces are
318-435: A combination of letters denote the wheel arrangement (currently there are C, D, BB and CC types), and a three-digit number denotes the class (2 xx for classes with electric transmission and 3 xx for classes with hydraulic or mechanical transmission), starting from 0. A two-digit number shows the year of operations, and two- or three-digit after the year shows the running number. Examples The steam locomotive classification
424-462: A dividing line ( Wallace Line ) between the distribution of Indonesia's Asian and Australasian species. It runs roughly north–south along the edge of the Sunda Shelf, between Kalimantan and Sulawesi, and along the deep Lombok Strait , between Lombok and Bali. Flora and fauna on the west of the line are generally Asian, while east from Lombok is increasingly Australian until the tipping point at
530-720: A legislature ( DPRD Kabupaten/Kota ). The third level are the districts ( kecamatan , distrik in Papua , or kapanewon and kemantren in Yogyakarta ), and the fourth are the villages (either desa , kelurahan , kampung , nagari in West Sumatra , or gampong in Aceh ). The village is the lowest level of government administration. It is divided into several community groups ( rukun warga , RW), which are further divided into neighbourhood groups ( rukun tetangga , RT). In Java,
636-487: A longer term target to further increase the coverage of its marine protected areas to 10% of its territorial waters, or 31 million hectares. Indonesia is a republic with a presidential system. Following the fall of the New Order in 1998, political and governmental structures have undergone sweeping reforms, with four constitutional amendments revamping the executive, legislative and judicial branches. Chief among them
742-616: A memorandum of understanding was signed between KAI and Bombardier Transportation . The project would have established final assembly of diesel-electric TRAXX Asia Locomotives in Surabaya , East Java for export and domestic use. The plant and project appears to have been abandoned as no TRAXX plant has been built in Surabaya. In 2012, KAI and GE Transportation signed a Memorandum of Understanding to cooperate on train services. All services are provided locally by Indonesian workers. GE runs
848-566: A motive power depot) have been used for scrapping of the disused economy class electric multiple units since 2013. Polsuska ( Indonesian : Pol isi Khu sus K ereta A pi or Railroad Special Police) is KAI's security unit. Polsuska works as a special railroad police that is charged with issuing tickets and patrolling stations to supplement the work of the national police . Polsuska has responsibilities relating to law and order including security of railway stations and train users. Polsuska officers wear black uniforms and orange berets pulled to
954-425: A part of the planned reactivation of Semarang–Ambarawa line, is to be the only railway in Indonesia without road crossings. It was planned to have eight flyovers and underpasses to improve safety in congested roads. As of 2016, KAI operated: The company is a major customer of the local railway equipment industry, PT Industri Kereta Api , operating passenger coaches, freight wagons and electric multiple units made by
1060-545: A press bureau in the Netherlands, Indonesisch Pers-bureau . Fossilised remains of Homo erectus , popularly known as the " Java Man ", suggest the Indonesian archipelago was inhabited two million to 500,000 years ago. Homo sapiens reached the region around 43,000 BCE. Austronesian peoples , who form the majority of the modern population, migrated to Southeast Asia from what is now Taiwan. They arrived in
1166-915: A queen bed. Snacks, meals and drinks are provided for free. On 18 October 2014, KAI launched the Jayabaya train for disabled persons traveling the Pasar Senen-Surabaya-Malang route and back. The train contains two disability carriages, which include accessible toilets, doors and spacious areas. It is planned to be implemented on other trains. KAI operated coal trains under partnership with Bukit Asam (PTBA) in Southern Sumatra. The coal were transported from Tanjung Enim in South Sumatra to Tarahan Rotary Car Dumper in Lampung, which were then shipped to Java. Other service which
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#17327824695521272-478: A range of sea and coastal ecosystems, including beaches , dunes, estuaries, mangroves, coral reefs, seagrass beds, coastal mudflats, tidal flats, algal beds, and small island ecosystems. Indonesia is one of the Coral Triangle countries with the world's most enormous diversity of coral reef fish , with more than 1,650 species in eastern Indonesia only. British naturalist Alfred Russel Wallace described
1378-405: A subsidiary under the name PT Kereta Commuter Indonesia (KCI). Kereta Api Pariwisata (branded as KA Wisata, formerly IndoRailTour) provides rail tourism services. KA Properti Manajemen (KAPM) provides property management. Kereta Api Logistik (Kalog) provides logistics. A KAI joint venture with Angkasa Pura II operates an airport train service, under the name Railink [ id ] via
1484-483: A traction motor remanufacturing center to serve all ASEAN countries. In 2012, Indonesian Railways allocated Rp20 billion (US$ 2.2 million) to restore and renovate 20 heritage sites and historical railways on Java and Sumatra. 727 kilometres (452 mi) of the northern coast area lines of Java were double tracked in May 2014, followed by the completion of a 1,000 kilometres (620 mi) double tracking project on
1590-520: A wealth of Asian fauna. Large species such as the Sumatran tiger , rhinoceros, orangutan, Asian elephant , and leopard were once abundant as far east as Bali, but numbers and distribution have dwindled drastically. Having been long separated from the continental landmasses, Sulawesi, Nusa Tenggara, and Maluku have developed their unique flora and fauna. Papua was part of the Australian landmass and
1696-569: Is US$ 15,835, while nominal per capita GDP is US$ 5,108. Services are the economy's largest sector and account for 43.4% of GDP (2018), followed by industry (39.7%) and agriculture (12.8%). Since 2009, it has employed more people than other sectors, accounting for 47.7% of the total labour force, followed by agriculture (30.2%) and industry (21.9%). Over time, the structure of the economy has changed considerably. Historically, it has been weighted heavily towards agriculture, reflecting both its stage of economic development and government policies in
1802-516: Is a country in Southeast Asia and Oceania , between the Indian and Pacific oceans. It consists of over 17,000 islands , including Sumatra , Java , Sulawesi , and parts of Borneo and New Guinea . Indonesia is the world's largest archipelagic state and the 14th-largest country by area , at 1,904,569 square kilometres (735,358 square miles). With over 280 million people, Indonesia is
1908-649: Is a founding member of the Association of Southeast Asian Nations ( ASEAN ) and the East Asia Summit . In common with most of the Muslim world , Indonesia does not have diplomatic relations with Israel and has actively supported Palestine . However, observers have pointed out that Indonesia has ties with Israel, albeit discreetly. Indonesia has been a member of the United Nations since 1950 and
2014-579: Is a luxury passenger carriage that can be rented and attached to a regular train for a specific journey. Exclusive carriages are known as kereta wisata ("tourist carriage"). The main users of these exclusive carriages are government officials, corporate boards, extended families, and groups of artists or tourists. The rental fee is about Rp 15,000,000 for short trips such as Jakarta–Bandung or Jakarta–Cirebon and up to Rp 27,000,000 for Jakarta–Surabaya trips. The carriages can accommodate up to 22 passengers, or 19 passengers for "Nusantara" carriage with
2120-404: Is believed to have caused a global volcanic winter and cooling of the climate and subsequently led to a genetic bottleneck in human evolution, though this is still in debate. The 1815 eruption of Mount Tambora and the 1883 eruption of Krakatoa were among the largest in recorded history. The former caused 92,000 deaths and created an umbrella of volcanic ash that spread and blanketed parts of
2226-536: Is elected for a five-year term, as are the party-aligned members of the DPR and the non-partisan DPD. Beginning with the 2015 local elections , elections for governors and mayors have occurred on the same date. In 2014, the Constitutional Court ruled that legislative and presidential elections would be held simultaneously, starting in 2019. Indonesia has several levels of subdivisions. The first level are
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#17327824695522332-403: Is generally below average in both regional and global context. Indonesia has one of the world's fastest deforestation rates. In 2020, forests covered approximately 49.1% of the country's land area, down from 87% in 1950. Since the 1970s, log production, various plantations and agriculture have been responsible for much of the deforestation in Indonesia . Most recently, it has been driven by
2438-754: Is highly unstable, making it a site of numerous volcanoes and frequent earthquakes. It lies on the Pacific Ring of Fire , where the Indo-Australian Plate and the Pacific Plate are pushed under the Eurasian Plate , where they melt at about 100 kilometres (62 miles) deep. A string of volcanoes runs through Sumatra, Java , Bali and Nusa Tenggara , and then to the Banda Islands of Maluku to northeastern Sulawesi . Of
2544-495: Is home to a unique fauna and flora closely related to that of Australia, including over 600 bird species. Indonesia is second only to Australia in terms of total endemic species, with 36% of its 1,531 species of bird and 39% of its 515 species of mammal being endemic. Indonesia harbours 83% of Southeast Asia's old-growth forest , and the highest amount of forest carbon in the region. Tropical seas surround Indonesia's 80,000 kilometres (50,000 miles) of coastline. The country has
2650-1179: Is located in Pengok, Special Region of Yogyakarta for maintenance of diesel electric and diesel hydraulic locomotives. In Sumatra the maintenance shops are in Lahat Regency (South Sumatra), Padang (West Sumatra) and Pulubrayan (North Sumatra). Other rolling stock workshops are present in Manggarai (Jakarta), Tegal (Central Java) and Gubeng (Surabaya, East Java). These places are used for maintenance of passenger carriages and freight wagons. A large stabling point and maintenance facility for electric multiple units are located in Depok , West Java . Motive power depots are located in Medan, Padang, Padang Panjang, Kertapati, Tanjungkarang, Rangkasbitung, Cipinang (Jakarta), Bandung, Cirebon, Purwokerto, Cilacap, Kutoarjo, Semarang Poncol, Ambarawa, Yogyakarta, Solo Balapan, Madiun, Sidotopo (Surabaya), and Jember. Large areas in front of Purwakarta station (formerly
2756-563: Is some policy recognition of OECMs but no national mechanism for reporting them. There are 55 national parks in Indonesia, of which 9 are predominantly marine . Of these 6 are World Heritage Sites , such as the Tropical Rainforest Heritage of Sumatra that includes three parks. Seven national parks are part of the World Network of Biosphere Reserves and 5 are wetlands of international importance under
2862-555: Is the delegation of power and authority to various regional entities while remaining a unitary state . The President of Indonesia is the head of state and head of government , commander-in-chief of the Indonesian National Armed Forces ( Tentara Nasional Indonesia , TNI), and the director of domestic governance, policy-making, and foreign affairs. The president may serve a maximum of two consecutive five-year terms. The highest representative body at
2968-417: Is the latest of a long line of successive state railway companies dating from Dutch colonial days. On 27 August 1863, Indonesia's first railway company was named Nederlandsch-Indische Spoorweg Maatschappij (NIS). The colonial government of Dutch-East Indies gave the concession to W. Poolman, Alex Frazer and E.H. Kol on 28 August 1862. Samarang-Tanggung (Grobogan) was its initial route. The ground breaking
3074-598: Is the most common, used in Java and the majority of Sumatra, while the 1,435 mm gauge is used only in Aceh , the Trans-Sulawesi Railway , and Jabodebek LRT . The company used to operate 750 mm ( 2 ft 5 + 1 ⁄ 2 in ) gauge lines in Aceh and 600 mm ( 1 ft 11 + 5 ⁄ 8 in ) gauge for some tramway lines. The total trackage laid in Indonesia
3180-607: Is the world's largest producer of nickel . These commodities make up a large portion of the country's exports, with palm oil and coal briquettes as the leading export commodities. In addition to refined and crude petroleum as the primary imports, telephones, vehicle parts and wheat cover the majority of additional imports. China, the United States, Japan, Singapore, India, Malaysia, South Korea, and Thailand are Indonesia's principal export markets and import partners. Surabaya Too Many Requests If you report this error to
3286-426: The 2006 Yogyakarta earthquake . Indonesia's size, tropical climate, and archipelagic geography support one of the world's highest levels of biodiversity , and it is among the 17 megadiverse countries identified by Conservation International . Its flora and fauna are a mixture of Asian and Australasian species. The Sunda Shelf islands (Sumatra, Java, Borneo, and Bali) were once linked to mainland Asia and have
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3392-639: The Army (TNI–AD), Navy (TNI–AL, which includes Marine Corps ), and Air Force (TNI–AU). The army has about 400,000 active-duty personnel. Defence spending in the national budget was 0.7% of gross domestic product (GDP) in 2018, with controversial involvement of military-owned commercial interests and foundations. The Armed Forces were formed during the Indonesian National Revolution when it undertook guerrilla warfare along with informal militia. Since then, territorial lines have formed
3498-495: The Bali myna , Sumatran orangutan , and Javan rhinoceros . Some academics describe the deforestation and other environmental destruction in the country as an ecocide . As of 2023, the government of Indonesia has gazetted 21.3% of the country's land as protected areas , with the intention of developing a new protected area strategy in line with global post-2020 framework . The country also has 411 marine reserves , or 9% of
3604-611: The Constitutional Court ( Mahkamah Konstitusi ) which listens to constitutional and political matters, and the Religious Court ( Pengadilan Agama ), which deals with codified Islamic Personal Law ( sharia ) cases. Additionally, the Judicial Commission ( Komisi Yudisial ) monitors the performance of judges. Since 1999, Indonesia has had a multi-party system. In all legislative elections since
3710-471: The Consumer Price Index have contributed to strong economic growth in recent years. From 2007 to 2019, annual growth accelerated to between 4% and 6% due to improvements in the banking sector and domestic consumption, helping Indonesia weather the 2008–2009 Great Recession , and regain in 2011 the investment grade rating it had lost in 1997. As of 2019 , 9.41% of the population lived below
3816-528: The Jabotabek commuter urban transport, which was spun off from KAI in August 2008. After changing the rail between Purwosari station and Wonogiri station and the bridges with R42 (37 kilometres), so line between Sangkrah station, Solo and Wonogiri became served by heavy electric diesel locomotives. On 3 May 2011 the company trialed a cargo train from Cikarang Dry Port to Surabaya . In December,
3922-564: The Japanese invasion and occupation ended Dutch rule and encouraged the independence movement. Two days after the surrender of Japan in August 1945, influential nationalist leaders Sukarno and Mohammad Hatta issued the Proclamation of Indonesian Independence . Sukarno, Hatta, and Sutan Sjahrir were appointed president, vice-president, and prime minister, respectively. The Netherlands attempted to re-establish their rule. In
4028-614: The Kualanamu Airport Rail Link train. PT KAI is in a consortium with Wijaya Karya [ id ] (Wika), Perkebunan Nusantara VIII [ id ] (PTPN VIII), and Jasa Marga , under the name Pilar Sinergi BUMN Indonesia for the Jakarta–Bandung high-speed train project operated by Kereta Cepat Indonesia China (KCIC). Indonesia Indonesia , officially the Republic of Indonesia ,
4134-549: The Madiun -based company. KAIs' diesel-electric locomotives are mostly made in the United States or Canada, while the diesel hydraulics are mostly made in Germany. Electric units are mostly Japanese-built. Local industry is capable of building both diesel and electric units. AIC assembles diesel-electric TRAXX Asia Locomotives in Surabaya , East Java with Bombardier Transportation (now Alstom since 2021). All locomotives of
4240-733: The Maluku Islands . Dutch and British traders followed. In 1602, the Dutch established the Dutch East India Company ( Verenigde Oostindische Compagnie ; VOC) and became the dominant European power for almost 200 years. The VOC was dissolved in 1799 following bankruptcy, and the Netherlands established the Dutch East Indies as a nationalised colony. For most of the colonial period , Dutch control over
4346-512: The Organisation of Islamic Cooperation . The name Indonesia derives from the Greek words Indos ( Ἰνδός ) and nesos ( νῆσος ), meaning "Indian islands". The name dates back to the 19th century, far predating the formation of independent Indonesia. In 1850, George Windsor Earl , an English ethnologist , proposed the terms Indunesians —and, his preference, Malayunesians —for
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4452-556: The Prosperous Justice Party (PKS). The first general election was held in 1955 to elect members of the DPR and the Constitutional Assembly ( Konstituante ). The most recent elections in 2019 resulted in nine political parties in the DPR, with a parliamentary threshold of 4% of the national vote. At the national level, Indonesians did not elect a president until 2004. Since then, the president
4558-529: The Ramsar convention . Around 9% of the Indonesia surface are national parks. As of 2012 Indonesia had over 100 marine protected areas covering an area of 15.7 million ha, of which 32 where managed by the Ministry of Forestry while the rest where managed by local governments. In 2009 the president Susilo Bambang Yudhoyono declared a target of reaching 20 million hectares by 2020. In 2010 Indonesia also set out
4664-715: The UNHRC have raised the issue of human rights abuses committed by Indonesian troops in Papua such as extrajudicial killings and forced disappearances. Past engagements of the army include the conflict against the Netherlands over the Dutch New Guinea , the opposition to the British -sponsored creation of Malaysia (" Konfrontasi "), the mass killings of the Indonesian Communist Party (PKI), and
4770-489: The Weber Line . In his 1869 book, The Malay Archipelago , Wallace described numerous species unique to the area. The region of islands between his line and New Guinea is now termed Wallacea . Indonesia's large and growing population and rapid industrialisation present serious environmental issues . They are often given a lower priority due to high poverty levels and weak, under-resourced governance. Problems include
4876-703: The armed forces and police . Act No. 23 of 2007 took effect on 25 April 2007. In this law, track maintenance is more directly handled by the government via the Directorate General of Railways, under the Ministry of Transportation. KAI operates multiple subsidiary businesses. The Railway Employee Welfare Center Foundation (Yayasan Pusaka), one of PNKA's foundations, established PT Karya Pusaka (founded on 5 December 1967) and renamed it PT Pusaka Nusantara on 18 April 1970. Pusaka focuses on restoration, outsourcing, and cleanliness of train infrastructure and facilities. The first subsidiary of PT Kereta Api
4982-489: The eastern part of Malaysia , as well as maritime borders with Singapore , Peninsular Malaysia , Vietnam , Thailand , the Philippines , Australia , Palau , and India . Despite its large population and densely populated regions, Indonesia has vast areas of wilderness that support one of the world's highest levels of biodiversity . The Indonesian archipelago has been a valuable region for trade since at least
5088-682: The invasion of East Timor , the latter having been Indonesia's most massive military operation. Indonesia has a mixed economy in which the private sector and government play vital roles. As the only G20 member state in Southeast Asia, the country has the largest economy in the region and is classified as a newly industrialised country . Per a 2023 estimate, it is the world's 16th largest economy by nominal GDP and 7th in terms of GDP at PPP , estimated to be US$ 1.417 trillion and US$ 4.393 trillion, respectively. Per capita GDP in PPP
5194-436: The palm oil industry, which has been criticised for its environmental impact and displacement of local communities. The situation has made Indonesia the world's largest forest-based emitter of greenhouse gases. It also threatens the survival of indigenous and endemic species. The International Union for Conservation of Nature (IUCN) identified 140 species of mammals as threatened and 15 as critically endangered, including
5300-436: The provinces , which have a legislature ( Dewan Perwakilan Rakyat Daerah , DPRD) and an elected governor . A total of 38 provinces have been established from the original eight in 1945, the most recent change being the split of Southwest Papua from the province of West Papua in 2022. The second level are the regencies ( kabupaten ) and cities ( kota ), led by regents ( bupati ) and mayors ( walikota ), respectively, and
5406-410: The tropical rainforest climate found on every large island of Indonesia. Cooler climate types exist in mountainous regions that are 1,300 to 1,500 metres (4,300 to 4,900 feet) above sea level. The oceanic climate (Köppen Cfb ) prevails in highland areas adjacent to rainforest climates, with uniform precipitation year-round. In highland areas near the tropical monsoon and tropical savanna climates ,
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#17327824695525512-413: The 1950s and 1960s to promote agricultural self-sufficiency. A gradual process of industrialisation and urbanisation began in the late 1960s and accelerated in the 1980s as falling oil prices saw the government focus on diversifying away from oil exports and towards manufactured exports. This development continued throughout the 1980s and into the next decade despite the 1990 oil price shock , during which
5618-411: The 400 volcanoes, around 130 are active. Between 1972 and 1991, there were 29 volcanic eruptions, mostly on Java. Volcanic ash has made agricultural conditions unpredictable in some areas. However, it has also resulted in fertile soils, a factor in historically sustaining the high population densities of Java and Bali. A massive supervolcano erupted at present-day Lake Toba around 70,000 BCE. It
5724-580: The Cold War. Numerous attempts by the United States and the Soviet Union , and China to some degree, culminated in the 1965 coup attempt and subsequent upheaval that led to a reorientation of foreign policy. Quiet alignment with the Western world while maintaining a non-aligned stance has characterised Indonesia's foreign policy since then. Today, it maintains close relations with its neighbours and
5830-524: The Deli area. In 1939, the total operational trackage was 4,588 kilometres (2,851 mi) (it is unclear whether dual gauge tracks were counted once or twice). Indonesia gained independence in 1945 and has its sovereignty recognized in 1949. The various railway systems (except the Deli Railway Company ) were combined into Djawatan Kereta Api Republik Indonesia (DKARI, Railways Service of
5936-561: The East ( de Oost ); and Insulinde . After 1900, Indonesia became more common in academic circles outside the Netherlands, and native nationalist groups adopted it for political expression. Adolf Bastian of the University of Berlin popularized the name through his book Indonesien oder die Inseln des Malayischen Archipels, 1884–1894 . The first native scholar to use the name was Ki Hajar Dewantara when in 1913, he established
6042-544: The GDP rose at an average rate of 7.1%. As a result, the official poverty rate fell from 60% to 15%. Trade barriers reduction from the mid-1980s made the economy more globally integrated. The growth ended with the 1997 Asian financial crisis that severely impacted the economy, including a 13.1% real GDP contraction in 1998 and a 78% inflation. The economy reached its low point in mid-1999 with only 0.8% real GDP growth. Relatively steady inflation and an increase in GDP deflator and
6148-503: The KAI (with the exception of steam locomotives ) are diesel . Most new locomotives use diesel-electric transmission , while shunters and older locomotives have hydraulic transmission . More than 400 locomotives are documented, but the tally of operational locomotives is smaller. Based on Minister of Transportation's Regulation No. 45 of 2010 , locomotives are required to use a combination of letters and numbers for designations. A letter or
6254-521: The Philippines, Palau, and Australia. At 4,884 metres (16,024 ft), Puncak Jaya is Indonesia's highest peak, and Lake Toba in Sumatra is the largest lake, with an area of 1,145 km (442 sq mi). Indonesia's largest rivers are in Kalimantan and New Guinea and include Kapuas , Barito , Mamberamo , Sepik and Mahakam . They serve as communication and transport links between
6360-485: The Railways Public Corporation), and as of 1 June 1999 converted into joint-stock company PT Kereta Api (Persero) (PT KA, Indonesian Railways Company JSC). In May 2010, it became PT Kereta Api Indonesia (Persero) (PT KAI). Electric locomotives were always a minority, and no new electric locomotives were acquired until the 1970s. However, electric multiple units have been imported since 1976 for
6466-709: The Republic of Indonesia) in 1953. Non-state railway systems in Java retained their formal existence until 1958, when all railway lines were nationalised , including the Deli in North Sumatra, thereby creating the Perusahaan Negara Kereta Api (PNKA, State Railways Corporation) on 28 September 1960. On 28 September 1970 PNKA was changed to Perusahaan Jawatan Kereta Api (PJKA, the Railway Service Corporation). Much of
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#17327824695526572-489: The Spice Islands of Maluku during the Age of Discovery . Following three and a half centuries of Dutch colonialism , Indonesia secured its independence after World War II . Indonesia's history has since been turbulent, with challenges posed by natural disasters, corruption, separatism, a democratisation process, and periods of rapid economic growth. Indonesia consists of thousands of distinct native ethnic groups and hundreds of linguistic groups, with Javanese being
6678-443: The UN) scattered over both sides of the equator, around 6,000 of which are inhabited. The largest are Sumatra , Java , Borneo (shared with Brunei and Malaysia), Sulawesi , and New Guinea (shared with Papua New Guinea). Indonesia shares land borders with Malaysia on Borneo and Sebatik , Papua New Guinea on the island of New Guinea, East Timor on the island of Timor , and maritime borders with Singapore, Malaysia, Vietnam,
6784-399: The archipelago and made much of the Northern Hemisphere without summer in 1816 . The latter produced the loudest sound in recorded history and caused 36,000 deaths due to the eruption itself and the resulting tsunamis, with significant additional effects around the world years after the event. Recent catastrophic disasters due to seismic activity include the 2004 Indian Ocean earthquake and
6890-560: The archipelago around 2,000 BCE and confined the native Melanesians to the far eastern regions as they spread east. Ideal agricultural conditions and the mastering of wet-field rice cultivation as early as the eighth century BCE allowed villages, towns, and small kingdoms to flourish by the first century CE. The archipelago's strategic sea-lane position fostered inter-island and international trade, including with Indian kingdoms and Chinese dynasties, from several centuries BCE. Trade has since fundamentally shaped Indonesian history. From
6996-464: The archipelago was tenuous. Dutch forces were engaged continuously in quelling rebellions on and off Java. The influence of local leaders such as Prince Diponegoro in central Java, Imam Bonjol in central Sumatra, Pattimura in Maluku , and the Aceh War weakened the Dutch and tied up the colonial military forces. Only in the early 20th century did Dutch dominance extend to what was to become Indonesia's current boundaries. During World War II,
7102-427: The basis of all TNI branches' structure, aimed at maintaining domestic stability and deterring foreign threats. The military has possessed a strong political influence since its founding, which peaked during the New Order . Political reforms in 1998 included the removal of the TNI's formal representation from the legislature. Nevertheless, its political influence remains, albeit at a reduced level. Since independence,
7208-441: The beginning of the Indonesian National Revolution , the Dutch recognised Indonesian independence in the face of international pressure in December 1949, following the Dutch–Indonesian Round Table Conference . Despite political, social, and sectarian divisions, Indonesians found unity in their fight for independence. As president, Sukarno moved Indonesia from democracy towards authoritarianism and maintained power by balancing
7314-574: The branch lines constructed in the colonial era were lifted up or abandoned in the 1980s. Railway operations in Indonesia were at one time regulated by Act No. 13 of 1992 on Railways. This legislation stated that the government operates railways (arts. 4 and 6), delegates operations to an operating body [then the Perumka , later PT Kereta Api ] (art. 6) and provides and maintains railway infrastructure (art. 8). Private companies were allowed to co-operate in operation of railways (art. 6). On 1 August 1990, PJKA changed to Perusahaan Umum Kereta Api (Perumka,
7420-499: The country hardest hit by the 1997 Asian financial crisis . It brought out popular discontent with the New Order's corruption and suppression of political opposition and ultimately ended Suharto's presidency. In 1999, East Timor seceded from Indonesia, following its 1975 invasion by Indonesia and a 25-year occupation marked by international condemnation of human rights abuses . Since 1998, democratic processes have been strengthened by enhancing regional autonomy and instituting
7526-456: The country has struggled to maintain unity against local insurgencies and separatist movements. Some, notably in Aceh and Papua , have led to an armed conflict and subsequent allegations of human rights abuses and brutality from all sides. The former was resolved peacefully in 2005, while the latter has continued amid a significant, albeit imperfect, implementation of regional autonomy laws. Reports from Amnesty , Human Rights Watch , and
7632-446: The country's first direct presidential election in 2004 . Political, economic and social instability, corruption, and instances of terrorism remained problems in the 2000s; however, the economy has performed strongly since 2007. Although relations among the diverse population are mostly harmonious, acute sectarian discontent and violence remain problematic in some areas. A political settlement to an armed separatist conflict in Aceh
7738-415: The country's total maritime area, and has set a target to increase this to 30% by 2045. However, a 2023 study suggested this target is not on track and that existing marine reserves are poorly managed. Around 390 marine areas are managed in some way by government bodies, communities, and other sectors, with potential for these to be considered other effective area-based conservation measures (OECMs). There
7844-432: The destruction of peatlands, large-scale illegal deforestation (causing extensive haze across parts of Southeast Asia ), over-exploitation of marine resources, air pollution, garbage management, and reliable water and wastewater services . These issues contribute to Indonesia's low ranking (number 116 out of 180 countries) in the 2020 Environmental Performance Index . The report also indicates that Indonesia's performance
7950-488: The dominant religion in Java and Sumatra by the end of the 16th century. For the most part, Islam overlaid and mixed with existing cultural and religious influences, which shaped the predominant form of Islam in Indonesia, particularly in Java. The first Europeans arrived in the archipelago in 1512, when Portuguese traders, led by Francisco Serrão , sought to monopolise the sources of nutmeg , cloves , and cubeb pepper in
8056-651: The executive branch. Reforms since 1998 have markedly increased its role in national governance, while the DPD is a new chamber for matters of regional management. Most civil disputes appear before the State Court ( Pengadilan Negeri ); appeals are heard before the High Court ( Pengadilan Tinggi ). The Supreme Court of Indonesia ( Mahkamah Agung ) is the highest level of the judicial branch and hears final cessation appeals and conducts case reviews. Other courts include
8162-728: The fall of the New Order , no political party has won an overall majority of seats. The Indonesian Democratic Party of Struggle (PDI-P) secured the most votes in the 2024 general election , becoming their third consecutive wins since 2014. Other notable parties include the Party of the Functional Groups ( Golkar ), the Great Indonesia Movement Party ( Gerindra ), the Democratic Party , and
8268-438: The frequency of drought and food shortages (with an impact on precipitation and the patterns of wet and dry seasons, and thus Indonesia's agriculture system ) as well as numerous diseases and wildfires. Rising sea levels would also threaten most of Indonesia's population, who live in low-lying coastal areas. Impoverished communities would likely be affected the most by climate change. Tectonically , most of Indonesia's area
8374-576: The inhabitants of the "Indian Archipelago or Malay Archipelago ". In the same publication, one of his students, James Richardson Logan , used Indonesia as a synonym for Indian Archipelago . Dutch academics writing in East Indies publications were reluctant to use Indonesia . They preferred Malay Archipelago ( Dutch : Maleische Archipel ); the Netherlands East Indies ( Nederlandsch Oost Indië ), popularly Indië ;
8480-449: The interiors of Kalimantan and Papua, and less in areas closer to Australia, such as Nusa Tenggara, which tends to be relatively dry. The almost uniformly warm waters that constitute 81% of Indonesia's area ensure that land temperatures remain relatively constant. Humidity is quite high, at between 70 and 90%. Winds are moderate and generally predictable, with monsoons usually blowing in from the south and east in May through October and from
8586-419: The island's river settlements. Indonesia lies along the equator, and its climate tends to be relatively even year-round. Indonesia has two seasons—a dry season and a wet season —with no extremes of summer or winter. For most parts of Indonesia, the dry season falls between May and October, while the wet season falls between November and April. Indonesia's climate is almost entirely tropical , dominated by
8692-464: The largest. A shared identity has developed with the motto " Bhinneka Tunggal Ika " ("Unity in Diversity" literally , "many, yet one"), defined by a national language , cultural diversity, religious pluralism within a Muslim-majority population, and a history of colonialism and rebellion against it. A developing country , Indonesia is classified a newly industrialized country , with its economy
8798-792: The left. Polsuska is trained by the Indonesian National Police . Polsuska is under the command of the Indonesian Railway Company's Directorate of Safety and Security. The commuter lines that serve Greater Jakarta maintain a separate security force (Petugas Keamanan Dalam/PKD) . They are categorized as security guards . Their service uniforms are dark blue and they wear white helmets (or peaked caps). They are not part of Polsuska. Every railway station employs security guards to assist Polsuska in maintaining order and security. During peak days such as national holidays, Polsuska may be assisted by members from
8904-642: The national level is the People's Consultative Assembly ( Majelis Permusyawaratan Rakyat , MPR). Its main functions are supporting and amending the constitution, inaugurating and impeaching the president, and formalising broad outlines of state policy. The MPR comprises two houses; the People's Representative Council ( Dewan Perwakilan Rakyat , DPR), with 575 members, and the Regional Representative Council ( Dewan Perwakilan Daerah , DPD), with 136. The DPR passes legislation and monitors
9010-559: The north and west in November through April. Typhoons and large-scale storms pose little hazard to mariners; significant dangers come from swift currents in channels, such as the Lombok and Sape straits. Several studies consider Indonesia to be at severe risk from the projected effects of climate change . These include unreduced emissions resulting in an average temperature rise of around 1 °C (2 °F) by mid-century, raising
9116-425: The only ones where the indigenous people have privileges in their local government. Indonesia maintains 132 diplomatic missions abroad, including 95 embassies. The country adheres to what it calls a "free and active" foreign policy, seeking a role in regional affairs in proportion to its size and location but avoiding involvement in conflicts among other countries. Indonesia was a significant battleground during
9222-487: The opposing forces of the military , political Islam, and the increasingly powerful Communist Party of Indonesia (PKI). Tensions between the military and the PKI culminated in an attempted coup in 1965. The army, led by Major General Suharto , countered by instigating a violent anti-communist purge that killed between 500,000 and one million people and incarcerated roughly a million more in concentration camps . The PKI
9328-544: The poverty line, and the official open unemployment rate was 5.28%. During the first year of the global COVID-19 pandemic , the economy suffered its first recession since the 1997 crisis but recovered in the following year. Indonesia has abundant natural resources. Its primary industries are fishing, petroleum, timber, paper products, cotton cloth, tourism, petroleum mining, natural gas, bauxite, coal, and tin. Its main agricultural products are rice, coconuts, soybeans, bananas, coffee, tea, palm, rubber, and sugar cane. Indonesia
9434-455: The seventh century CE, the Srivijaya naval kingdom flourished due to trade and the influences of Hinduism and Buddhism . Between the eighth and tenth centuries CE, the agricultural Buddhist Sailendra and Hindu Mataram dynasties thrived and declined in inland Java, leaving grand religious monuments such as Sailendra's Borobudur and Mataram's Prambanan . The Hindu Majapahit kingdom
9540-423: The seventh century, when Sumatra's Srivijaya and later Java's Majapahit kingdoms engaged in commerce with entities from mainland China and the Indian subcontinent . Over the centuries, local rulers assimilated foreign influences, leading to the flourishing of Hindu and Buddhist kingdoms. Sunni traders and Sufi scholars later brought Islam , and European powers fought one another to monopolise trade in
9646-612: The south coast by 2015. On 8 June 2015 the Duri-Tangerang double track project was inaugurated for KA Commuter Jabodetabek , but it can be also used for airport trains. Construction began in early 2015 to connect Cikarang Dry Port and Tanjung Priok Port to ease traffic. The first trackage project of the Trans-Sulawesi Railway with a length of 143 kilometres from Makassar to Pare-pare was completed in 2017. The train began service in 2018 with trackage wider than in Java to accommodate more weight and speed. Revaluation of assets
9752-438: The subtropical highland climate (Köppen Cwb ) is more pronounced during dry season. Some regions, such as Kalimantan and Sumatra , experience only slight differences in rainfall and temperature between the seasons, whereas others, such as Nusa Tenggara, experience far more pronounced differences with droughts in the dry season and floods in the wet season. Rainfall varies across regions, with more in western Sumatra, Java, and
9858-633: The village ( desa ) is divided into smaller units called dusun or dukuh (hamlets), which are the same as RW. Following the implementation of regional autonomy measures in 2001, regencies and cities have become chief administrative units responsible for providing most government services. The village administration level is the most influential on a citizen's daily life and handles village or neighbourhood matters through an elected village head ( lurah or kepala desa ). Nine provinces—Aceh, Jakarta, Yogyakarta, Papua , Central Papua , Highland Papua , South Papua , Southwest Papua , and West Papua —are granted
9964-521: The world's 16th-largest by nominal GDP and the 7th-largest by PPP . It is the world's third-largest democracy, a regional power , and is considered a middle power in global affairs. The country is a member of several multilateral organisations, including the United Nations, World Trade Organization , G20 , and a founding member of the Non-Aligned Movement , Association of Southeast Asian Nations , East Asia Summit , D-8 , APEC , and
10070-495: The world's fourth-most-populous country and the most populous Muslim-majority country . Java, the world's most populous island , is home to more than half of the country's population. Indonesia is a presidential republic with an elected legislature . It has 38 provinces , of which nine have special autonomous status . The country's largest city, Jakarta , is the world's second-most-populous urban area . Indonesia shares land borders with Papua New Guinea , East Timor , and
10176-653: Was Reska Multi Usaha [ id ] . This company focuses on business services to support railroad operations, such as restoration, parking, cleanliness on the train, restaurants and cafes , train washing, and comfort support. The company was formed on 2 July 2003. Reska owns the LoKo trademark, a restaurant chain with the theme of rail transportation that operates many station restaurants. Jabotabek Urban Transport Division manages electrified commuter service in Jakarta metropolitan area (currently KRL Commuterline ) as
10282-614: Was 7,583 kilometres (4,712 mi), although not all lines were in operation at the same time. The system spanned 5,042 kilometres (3,133 mi) as of 2019, with the Aceh system, most of the West Sumatra system and most former steam tram lines abandoned, but including new tracks built alongside old tracks (double tracking projects). Many of the busiest lines are double tracked . A Memorandum of Understanding has been signed to build railway around Bali with length of 565 km (351 miles). The Kedungjati – Tuntang railway line,
10388-681: Was a founding member of the Non-Aligned Movement (NAM) and the Organisation of Islamic Cooperation (OIC). Indonesia is a signatory to the ASEAN Free Trade Area agreement, the Cairns Group , the World Trade Organization (WTO), and a former member of OPEC . Indonesia has been a humanitarian and development aid recipient since 1967, and recently, the country established its first overseas aid programme in late 2019. Indonesia's Armed Forces (TNI) include
10494-579: Was achieved in 2005. Indonesia is the southernmost country in Asia. The country lies between latitudes 11°S and 6°N and longitudes 95°E and 141°E . A transcontinental country spanning Southeast Asia and Oceania, it is the world's largest archipelagic state , extending 5,120 kilometres (3,181 mi) from east to west and 1,760 kilometres (1,094 mi) from north to south. The country's Coordinating Ministry for Maritime and Investments Affairs says Indonesia has 17,504 islands (with 16,056 registered at
10600-454: Was blamed for the coup and effectively destroyed. Suharto capitalised on Sukarno's weakened position, and following a drawn-out power play with Sukarno , Suharto was appointed president in March 1968. His US-backed "New Order" administration encouraged foreign direct investment , which was a crucial factor in the subsequent three decades of substantial economic growth. Indonesia was
10706-461: Was directly derived from the Japanese 1928 numbering system (it was adopted by the wartime Japanese occupation authorities ). Tank locomotives were numbered from the 10s, while tender locomotives from the 50s. Letter combinations were used for articulated locomotives ( Mallets ). KAI runs three classes of named passenger trains on Java : Executive class (1st class), Business class (2nd class), and Economy class (3rd class). The "exclusive carriage"
10812-564: Was done by the Ministry of Transportation . The company owns Rp.35 trillion ($ 4.1 billion) as land and Rp.22 trillion ($ 2.6 billion) as other assets (bridges, signals, etc.). The exact value was to be determined by the end of 2011 or 2012, based on an audit by the Ministry of Finance . The company operates disp=or ( 1,067 mm or 3 ft 6 in ) and 1,435 mm ( 4 ft 8 + 1 ⁄ 2 in ) standard gauge lines. The 1,067 mm gauge
10918-401: Was founded in eastern Java in the late 13th century, and under Gajah Mada , its influence stretched over much of present-day Indonesia. This period is often referred to as the "Golden Age" in Indonesian history. The earliest evidence of Islamized populations in the archipelago dates to the 13th century in northern Sumatra . Other parts of the archipelago gradually adopted Islam, and it was
11024-697: Was in Kemijen village, Semarang by L.A.J.W. Baron Sloet van de Beele on 17 June 1864. The line opened on 10 August 1867 was Batavia ( Jakarta ) – Buitenzorg ( Bogor ) and Samarang – Vorstenlanden (Surakarta and Yogyakarta). They faced big losses and faced bankruptcy. The colonial government assisted the company by forming Staatsspoorwegen , a state-owned company on 6 April 1875. Their route stretched from Buitenzorg to Soerabaja . The private company Deli Spoorweg Maatschappij operated exclusively in North Sumatra , to transport rubber and tobacco around
11130-564: Was operated under partnership with PTBA transports coal from Tanjung Enim to Kertapati Apron Feeder in Palembang. After that, the coal will be transported using barges for export and domestic supply. KAI also made partnership with several private coal mining companies in South Sumatra. The first private coal train ( Baraswasta ) was launched in 2011 from Suka Cinta in Lahat to Kertapati in Palembang. To support operational, Suka Cinta station which
11236-561: Was previously just a small remote station was developed to a larger station with coal loading facilities. The company also operated intermodal container trains. In comparison, trucks and flatbeds can only carry 1.5 trip per day, while a train can carry 40 TEUs (Twenty-foot Equivalent Units) per trip. KAI operates a library train ( Kereta Pustaka Indonesia ) that documents company activities, small size assets and books. The library train holds an exhibition for one week in one station and then moves to another. In Java, KAI's main diesel workshop
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