53-656: The MRT Orange Line ( Thai : รถไฟฟ้ามหานคร สายสีส้ม ) is a rapid transit line of the Mass Rapid Transit Authority of Thailand (MRTA) in the Bangkok Metropolitan Area , Thailand . When fully completed, the MRT Orange line will be 35.9 km (22.3 mi) long with 29 stations (7 stations will be elevated for 8.9 km (5.5 mi) and 22 will be underground for 27 km (16.8 mi)), including an interchange with
106-411: A dialect continuum . Thai language is spoken by over 69 million people (2020). Moreover, most Thais in the northern (Lanna) and the northeastern (Isan) parts of the country today are bilingual speakers of Central Thai and their respective regional dialects because Central Thai is the language of television, education, news reporting, and all forms of media. A recent research found that the speakers of
159-565: A second language among the country's minority ethnic groups from the mid-late Ayutthaya period onward. Ethnic minorities today are predominantly bilingual, speaking Thai alongside their native language or dialect. Standard Thai is classified as one of the Chiang Saen languages—others being Northern Thai , Southern Thai and numerous smaller languages, which together with the Northwestern Tai and Lao-Phutai languages, form
212-611: A construction period of 3 and a half years. There were 10 tenderers that purchased the request for proposal (RFP) form with two major consortiums that submitted final bids: However, in late August 2020 the tender submission deadline was subsequently delayed by the MRTA. Thereafter, the MRTA amended the tender assessment criteria resulting in a lawsuit being lodged by the BTSC in the Administrative Court on 17 September 2020 with
265-533: A four-way distinction among stops and affricates . The maximal four-way occurred in labials ( /p pʰ b ʔb/ ) and denti-alveolars ( /t tʰ d ʔd/ ); the three-way distinction among velars ( /k kʰ ɡ/ ) and palatals ( /tɕ tɕʰ dʑ/ ), with the glottalized member of each set apparently missing. The major change between old and modern Thai was due to voicing distinction losses and the concomitant tone split . This may have happened between about 1300 and 1600 CE, possibly occurring at different times in different parts of
318-564: A group of public universities in Thailand that were originally founded as teacher training colleges . In 1995, the Thai government elevated existing teacher training colleges to so-called Rajabhat Institutes. The transformation expanded the legal mandate of these institutions, granting them the authority to confer postgraduate degrees , including doctorates . Rajabhat Institutes were further transformed to Rajabhat Universities in 2005, allowing
371-466: A reissued tender in April or May 2022. The MRTA reissued the new tender on 24 May 2022 with tender packages available for purchase until 10 June. 14 different companies purchased the auction envelopes. The 141 billion baht western extension consists of 86 billion baht for civil works, 14 billion for land appropriation and 31 billion for systems installation, rolling stock and maintenance. The winning bidder
424-534: A route length of 27.3 kilometers from Bang Kapi to Rat Burana District , while the planned extensions are to Ban Na for 16.4 kilometers and finally to Min Buri District for 10 kilometers. In 2009, OTP proposed that the original MRT Brown line plan from Bang Kapi District elevated along Ram Khamhaeng Road to the eastern suburbs in Saphan Sung District and Min Buri District , be merged with
477-471: A scheduled opening in October 2022. At the end of the year, 31 December 2017, progress of civil works construction was at 4.66% according to the MRTA. By the end of July 2018, overall construction progress was 13.57%. By 30 September 2018, overall construction had progressed to 18.33%. At the end of March 2019, construction had progressed to 32.12%. At the end of July 2019, civil construction was at 42.27%. At
530-451: A signalling system is installed and rolling stock is ordered, both of which have not been tendered as the processes have been delayed due to problems with the western extension tender process. The line is not expected to open until August 2025 or more likely late 2025 or early 2026. Then it was later delayed again to 2028. By the end of April 2023, construction had progressed to 99.50%. The MRT Orange Line starts at Yeak Rom Klao station near
583-530: A syllable that formerly began with a voiceless consonant (including glottalized stops). An additional complication is that formerly voiceless unaspirated stops/affricates (original /p t k tɕ ʔb ʔd/ ) also caused original tone 1 to lower, but had no such effect on original tones 2 or 3. The above consonant mergers and tone splits account for the complex relationship between spelling and sound in modern Thai. Modern "low"-class consonants were voiced in Old Thai, and
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#1732779823434636-576: Is a Tai language of the Kra–Dai language family spoken by the Central Thai , Mon , Lao Wiang , Phuan people in Central Thailand and the vast majority of Thai Chinese enclaves throughout the country. It is the sole official language of Thailand . Thai is the most spoken of over 60 languages of Thailand by both number of native and overall speakers. Over half of its vocabulary
689-523: Is derived from or borrowed from Pali , Sanskrit , Mon and Old Khmer . It is a tonal and analytic language . Thai has a complex orthography and system of relational markers . Spoken Thai, depending on standard sociolinguistic factors such as age, gender, class, spatial proximity, and the urban/rural divide, is partly mutually intelligible with Lao , Isan , and some fellow Thai topolects . These languages are written with slightly different scripts, but are linguistically similar and effectively form
742-579: Is derived from the same origin as the Hindi, " Rajput " (from Sanskrit raja-putra, "son of a king"). In this sense, a "Rajabhat University" might be regarded as being analogous to the English "King's College", or "Royal Institute", or more literally as a "Prince's University" ("Rajabhat" could be considered to mean "prince"). For simplicity they may be considered a "Royal University". This Thailand university, college or other higher education institution article
795-597: Is to open the eastern section by early 2028, with the western section set to be completed ahead of schedule by November 2028. It was confirmed that the Orange Line’s maximum fare will be capped at 20 Baht or with a flat rate of 20 Baht for the entire route. & Ride Formerly Ramkhamhaeng. Note: In February 2020, the MRTA changed the names of 3 stations OR19 , OR20 , and OR29 . Thai language Thai , or Central Thai (historically Siamese ; Thai: ภาษาไทย ),
848-663: The Chao Phraya River near Phra Pinklao Bridge , passes Siriraj Hospital and goes along Bangkok Noi Rail line and terminates at Bang Khun Non at Charan Sanitwong road, where it interchanges with the MRT Blue Line . The original plan of the MRT Orange Line aimed to serve travel demand between the northwestern area of Thonburi , at Bang Bamru Railway Station in Bang Phlat District , and
901-466: The Northern Thai language (also known as Phasa Mueang or Kham Mueang) have become so few, as most people in northern Thailand now invariably speak Standard Thai, so that they are now using mostly Central Thai words and only seasoning their speech with the "Kham Mueang" accent. Standard Thai is based on the register of the educated classes by Central Thai and ethnic minorities in the area along
954-521: The Southwestern branch of Tai languages . The Tai languages are a branch of the Kra–Dai language family , which encompasses a large number of indigenous languages spoken in an arc from Hainan and Guangxi south through Laos and Northern Vietnam to the Cambodian border. Standard Thai is the principal language of education and government and spoken throughout Thailand. The standard is based on
1007-439: The Administrative Court given ongoing litigation, a new tender issued in October has a deadline for bids of January 2022. The Criminal Court - Corruption and Malfeasance Division hearing into the cancelled tender process was conducted in late December 2021 which further delayed the reissued tender timeframe. Subject to court approval, the MRTA planned to review tender bids for a period of 3 months before seeking Cabinet approval for
1060-610: The Cabinet approved the 142 billion baht extension. It was originally expected to open in February 2026 and serve 439,000 passengers daily. On 3 July 2020, the MRTA released the tender for the design, construction and operation of the Western extension as a Public-Private Partnership project on a 30 year lease. The tender deadline was 23 September 2020 with the successful bidder to be announced in early October 2020. The tender specified
1113-515: The Court imposing an injunction suspending the tender decision. The tender was subsequently cancelled by the MRTA in February 2021 due to litigation by the BTSC. After approval by the Administrative Court given ongoing litigation, a new tender issued in October has a deadline for bids of January 2022. The Criminal Court Corruption and Malfeasance division hearings into the cancelled tender process were conducted from 14 to 24 December 2021 and have delayed
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#17327798234341166-504: The Khmer system first before the Thai borrowed. Old Thai had a three-way tone distinction on "live syllables" (those not ending in a stop), with no possible distinction on "dead syllables" (those ending in a stop, i.e. either /p/, /t/, /k/ or the glottal stop that automatically closes syllables otherwise ending in a short vowel). There was a two-way voiced vs. voiceless distinction among all fricative and sonorant consonants, and up to
1219-420: The MRTA released the tender for the design and construction of the Western extension. However in late August 2020, the tender submission deadline was subsequently delayed. and the MRTA amended the tender assessment criteria resulting in a lawsuit and an injunction suspending the tender decision. The tender was subsequently cancelled by the MRTA in February 2021 given ongoing litigation by the BTSC. After approval by
1272-592: The Orange Line and updated Bangkok's mass rapid transit master plan accordingly. In July 2011, the section from Bang Khun Non to Taling Chan was finally scrapped in favour of the SRT Light Red Line spur line which duplicates the same route. In 2012, there were further notable changes made to the central and western sections of the Orange Line. The section from Din Daeng District to Bang Bamru
1325-966: The Orange line depot is located, along with the MRT Blue Line depot. The line then routes north to the Thailand Cultural Centre Station to interchange with the MRT Blue Line where it terminates. The western section of the MRT Orange Line, runs west from Thailand Cultural Centre Station via Din Daeng housing estates and Bangkok City Hall 2 to Vibhavadi Rangsit Road , Sam Liam Din Daeng Junction. Then turns left into Ratchaprarop Road towards Pratu Nam and turns right into Phetchaburi Road then interchanges with BTS Sukhumvit Line at Ratchathewi Station . It continues along Lan Luang Road and Ratchadamnoen Avenue , then crosses
1378-799: The Ramkhamheang-Suwinthawong Junction in Min Buri District in Bangkok's eastern suburbs as an elevated line running west along Ramkhamhaeng Road. It interchanges with the MRT Pink Line at Min Buri station. It then continues along Ramkhamhaeng road for 7.5 km (4.7 mi) before transitioning to underground before Ban Ma Junction in Bang Kapi District . The Orange Line then interchanges with
1431-491: The Thai-speaking area. All voiced–voiceless pairs of consonants lost the voicing distinction: However, in the process of these mergers, the former distinction of voice was transferred into a new set of tonal distinctions. In essence, every tone in Old Thai split into two new tones, with a lower-pitched tone corresponding to a syllable that formerly began with a voiced consonant, and a higher-pitched tone corresponding to
1484-479: The current Thailand Cultural Centre Station of MRT Blue Line ). The line is divided into two sections; the 22.5 km (14.0 mi) Eastern section from Yaek Rom Klao to Thailand Cultural Centre and the 2nd phase, 13.4 km (8.3 mi) Western section from Thailand Cultural Centre to Bang Khun Non. Construction of the 22.5 km (14.0 mi) Eastern Section started in June 2017. The line cannot open until
1537-545: The dialect of the central Thai people, and it is written in the Thai script . Hlai languages Kam-Sui languages Kra languages Be language Northern Tai languages Central Tai languages Khamti language Tai Lue language Shan language others Northern Thai language Thai language Southern Thai language Tai Yo language Phuthai language Lao language (PDR Lao, Isan language ) Thai has undergone various historical sound changes. Some of
1590-411: The east of Bangkok in Bang Kapi District . It was planned to run along Ramkhamhaeng Road and Ratchawithi Road , passing many public places like Hua Mak Stadium , Dusit Zoo and Victory Monument , and provide access to universities including Ramkhamhaeng University , Suan Sunandha and Suan Dusit Rajabhat University and many government offices. In the 1990s proposal for the Orange Line, it indicates
1643-529: The eastern and western sections was issued in May 2022, along with the construction of the western section. However, it was delayed due to the ongoing litigation regarding the western extension, and the tender was suspended. In July 2024, it was announced at the signing ceremony of the joint investment contract for the Orange Line that they planned to have 32 electric trains, each with 3 carriages. In October 2024, BEM has concluded its selection by choosing Siemens as
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1696-427: The elevated MRT Yellow Line at Yaek Lam Sali station. It continues farther southwest along Ramkhamhaeng rd passing Hua Mak Stadium and Ramkhamhaeng University to Rama 9 road intersection. The line then proceeds west along Rama IX road and crosses Pradit Manutham Road where it will interchange with the future MRT Grey Line before continuing to the current Mass Rapid Transit Authority of Thailand Headquarters where
1749-445: The end of October 2019, construction had progressed to 49.05%. At the end of January 2020, construction had progressed to 54.93%. By the end of May 2020, construction had progressed to 62.42%. On 5 October 2020, TBM number 2 finished tunneling and reached Ramkhamhaeng 12 station box as part of contract 2. At the end of September 2020, was at 69.82%. At the end of January 2021, construction had progressed to 76.09%. Construction progress
1802-406: The institutions to function as independent universities. There are currently 38 Rajabhat Universities. They are generally considered easier to gain admission to than the traditional public universities. Most Rajabhat Universities offer graduate degrees, some even to the doctoral level. Enrollments have been shrinking. As of 2018 , students numbered 540,000, down from 600,000. The word "Rajabhat"
1855-528: The local patois as pronounced in Guangdong Ayutthaya , the old capital of Thailand from 1351 - 1767 A.D., was from the beginning a bilingual society, speaking Thai and Khmer . Bilingualism must have been strengthened and maintained for some time by the great number of Khmer-speaking captives the Thais took from Angkor Thom after their victories in 1369, 1388 and 1431. Gradually toward the end of
1908-625: The manufacturer for the Orange Line trains, with a design similar to that of the Blue Line . The trains will be manufactured in Europe . However, there are currently no additional details about the Orange Line trains, as the parties involved are preparing to announce further information. The Phase 2 Western extension of the Orange line will run from Thailand Cultural Centre to Bang Khun Non via Pratunam. The 13.4 km (8.3 mi) western section will run underground with 12 stations. The Thai Cabinet
1961-551: The most significant changes occurred during the evolution from Old Thai to modern Thai. The Thai writing system has an eight-century history and many of these changes, especially in consonants and tones, are evidenced in the modern orthography . According to a Chinese source, during the Ming dynasty , Yingya Shenglan (1405–1433), Ma Huan reported on the language of the Xiānluó (暹羅) or Ayutthaya Kingdom, saying that it somewhat resembled
2014-415: The period, a language shift took place. Khmer fell out of use. Both Thai and Khmer descendants whose great-grand parents or earlier ancestors were bilingual came to use only Thai. In the process of language shift, an abundance of Khmer elements were transferred into Thai and permeated all aspects of the language. Consequently, the Thai of the late Ayutthaya Period which later became Ratanakosin or Bangkok Thai,
2067-492: The reissued tender timeframe. Subject to court approval, the MRTA planned to review all tender bids for a period of 3 months before seeking final Cabinet approval of the winning bid in April 2022. However, there are also construction budget concerns for the extension as steel prices have increased by 40% since the previous budget was approved. The EIA for the western extension was also updated in December 2021 as Din Daeng station
2120-575: The ring surrounding the Metropolis . In addition to Central Thai, Thailand is home to other related Tai languages . Although most linguists classify these dialects as related but distinct languages, native speakers often identify them as regional variants or dialects of the "same" Thai language, or as "different kinds of Thai". As a dominant language in all aspects of society in Thailand, Thai initially saw gradual and later widespread adoption as
2173-492: The royal vocabulary according to their immediate environment. Thai and Pali, the latter from Theravada Buddhism, were added to the vocabulary. An investigation of the Ayutthaya Rajasap reveals that three languages, Thai, Khmer and Khmero-Indic were at work closely both in formulaic expressions and in normal discourse. In fact, Khmero-Indic may be classified in the same category as Khmer because Indic had been adapted to
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2226-535: The terminology "low" reflects the lower tone variants that resulted. Modern "mid"-class consonants were voiceless unaspirated stops or affricates in Old Thai—precisely the class that triggered lowering in original tone 1 but not tones 2 or 3. Modern "high"-class consonants were the remaining voiceless consonants in Old Thai (voiceless fricatives, voiceless sonorants, voiceless aspirated stops). The three most common tone "marks" (the lack of any tone mark, as well as
2279-502: The three tones of Old Thai were split have since merged into five in standard Thai, with the lower variant of former tone 2 merging with the higher variant of former tone 3, becoming the modern "falling" tone. หม ม หน น, ณ หญ ญ หง ง ป ผ พ, ภ บ ฏ, ต ฐ, ถ ท, ธ ฎ, ด จ ฉ ช Rajabhat University The Rajabhat Universities ( มหาวิทยาลัยราชภัฏ , RTGS : Mahawitthayalai Ratchaphat ) are
2332-423: The two marks termed mai ek and mai tho ) represent the three tones of Old Thai, and the complex relationship between tone mark and actual tone is due to the various tonal changes since then. Since the tone split, the tones have changed in actual representation to the point that the former relationship between lower and higher tonal variants has been completely obscured. Furthermore, the six tones that resulted after
2385-427: Was 81.03% by the end of April 2021. Construction progress was 87.24% by the end of October 2021. By the end of March 2022, construction progress was at 92.69%. By the end of May 2022, construction had progressed to 94.51%. As of March 23 2023, construction had progressed to 99.00% By the end of June 2023, construction had progressed to 100.00%. The tender for operation of the line and purchase of rolling stock for both
2438-453: Was a thorough mixture of Thai and Khmer. There were more Khmer words in use than Tai cognates. Khmer grammatical rules were used actively to coin new disyllabic and polysyllabic words and phrases. Khmer expressions, sayings, and proverbs were expressed in Thai through transference. Thais borrowed both the Royal vocabulary and rules to enlarge the vocabulary from Khmer. The Thais later developed
2491-626: Was announced by the MRTA on 9 September 2022 with BEM winning the right to build and run the extension over the ITD consortium. On 18 July 2024, construction contracts were signed at the MRTA office. The Minister of Transport, Suriya Juangroongruangkit , instructed MRTA and BEM , the concession holder, to expedite the track and electrical works on the Orange Line's eastern section from the Thailand Cultural Centre to Yaek Rom Klao for completion as soon as possible. The primary objective
2544-410: Was announced by the MRTA on 9 September 2022 with BEM winning the right to build and run the extension over the ITD consortium. However, continued litigation by the BTSC into 2023 has delayed the start of construction. Construction contracts were signed on 9 February 2017 between the MRTA and CKST Joint Venture consortium. Construction finally started in June 2017 with a 1980 day construction period with
2597-502: Was dissolved in December 2013. On 9 December 2015, Cabinet finally approved the Orange Line. On 19 April 2016, the Cabinet further approved a budget of 82.9 billion baht for Phase 1 Eastern section to build 17 stations and 22.5 km (14.0 mi) of rail from the Thailand Cultural Centre to Minburi, of which 12.2 km (7.6 mi) will be underground and 9 km (5.6 mi) will be elevated. On 3 July 2020,
2650-410: Was expected to approve the 121 billion baht budget for the Western extension in mid 2017 with a tender due for the 2nd half of 2017. However, this decision was delayed until 2018 as Cabinet requested options to be considered for a joint public and private investment proposal. There were further delays into 2019, but the MRTA finalised a joint PPP plan for Cabinet to approve in mid 2019. On 28 January 2020,
2703-434: Was moved north by 500m, Pracha Songkhro station was moved east by 450m and Yommarat station was redesigned. The MRTA reissued the new tender auction on 24 May 2022 with tender packages available for purchase until 10 June. The 141 billion baht western extension consists of 86 billion baht for civil works, 14 billion for land appropriation and 31 billion for systems installation, rolling stock and maintenance. The winning bidder
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#17327798234342756-427: Was originally planned to be tendered by the end of 2013. However, due to protests by residents regarding station footprint and compulsory land acquisition around stations at Pratunam, Ratchaprarop, Pracha Songkhro and Soesim stations the MRTA needed another 12 months to redesign sections of the line. Subsequently, political protests against the Thai government led to the metro transport funding bill lapsing when parliament
2809-465: Was rerouted away from Victory Monument and Ratchawithi road route to further run south to Pratunam and then west along Petchaburi Road and Larn Luang Road. Continuing farther west along Ratchadamnoen Klang Road and Sanam Luang before passing under the Chao Praya river and finally terminating at Bang Khun Non to interchange with the MRT Blue Line extension. The MRT Orange line Eastern section
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