Asian Highway 12 (AH12) is a route of the Asian Highway Network, with a length of 1,195 km (747 miles) that runs from

AH3 Asian Highway 3 (AH3) is a route of the Asian Highway Network which runs from Ulan-Ude, Russia (on AH6) to Tanggu, China; and Shanghai, China (on AH5) to Chiang Rai, Thailand and Kengtung, Myanmar (both on AH2). Southeast Asian issues By mid ...

in Nateuy,

Laos Laos (, ''Lāo'' )), officially the Lao People's Democratic Republic ( Lao: ສາທາລະນະລັດ ປະຊາທິປະໄຕ ປະຊາຊົນລາວ, French: République démocratique populaire lao), is a socialist ...

, through

Muang Xay Muang Xay ( lo, ເມືອງໄຊ), also referred to as Oudomxai or Oudomxay, is the capital city of Oudomxai Province, Laos. Naming Legend has it that in the year 1323, the inhabitants of the village Ban Luang Cheng in "Takka Sila" town w ...

Luang Prabang Luang Phabang, ( Lao: ຫລວງພະບາງ/ ຫຼວງພະບາງ) or ''Louangphabang'' (pronounced ), commonly transliterated into Western languages from the pre-1975 Lao spelling ຫຼວງພຣະບາງ (ຣ = silent r) ...

Vang Vieng Vang may refer to: People Vang is a common surname among Hmong Americans, including *Vang Pao (1929–2011), Lieutenant General in the Royal Lao Army and a leader of the Hmong American community in the United States * Ka Vang (born 1975), writer ...

Vientiane Vientiane ( , ; lo, ວຽງຈັນ, ''Viangchan'', ) is the capital and largest city of Laos. Vientiane is divided administratively into 9 cities with a total area of only approx. 3,920 square kilometres and is located on the banks of ...

Nong Khai Nong Khai ( th, เทศบาลเมืองหนองคาย, ) is a city in northeast Thailand. It is the capital of Nong Khai province. Nong Khai city is located in Mueang Nong Khai district. Nong Khai lies on the Mekong River, near ...

Udon Thani Udon Thani ( th, อุดรธานี, ) is a city in Isan ( Northeast Thailand), the capital of Udon Thani Province and with a population of approximately 430,000 in its urban area the 7th largest city in the country. The city municipality ...

Khon Kaen Khon Kaen ( th, ขอนแก่น, ) is one of the four major cities of Isan, Thailand, also known as the "big four of Isan", the others being Udon Thani, Nakhon Ratchasima, and Ubon Ratchathani. It is the capital of Khon Kaen province and ...

Nakhon Ratchasima Nakhon Ratchasima ( th, นครราชสีมา, ) is one of the four major cities of Isan, Thailand, known as the "big four of Isan". The city is commonly known as Korat (, ), a shortened form of its name. It is the governmental seat of ...

, and

Saraburi Saraburi City (''thesaban mueang'') is the provincial capital of Saraburi Province in central Thailand. In 2020, it had a population of 60,809 people, and covers the complete ''tambon'' Pak Phriao of the Mueang Saraburi district. Location Sa ...

until its terminus at

AH1 Asian Highway 1 (AH1) is the longest route of the Asian Highway Network, running from Tokyo, Japan via Korea, China, Southeast Asia, Bangladesh, India, Pakistan, Afghanistan and Iran to the border between Turkey and Bulgaria west of Istanbul ...

in Nong Khae District, Saraburi Province,

Thailand Thailand ( ), historically known as Siam () and officially the Kingdom of Thailand, is a country in Southeast Asia, located at the centre of the Indochinese Peninsula, spanning , with a population of almost 70 million. The country is bo ...

. The highway has been in use since 8 April 1994. Its US$30 million cost was financed by Laos and Thailand, apart from the

First Thai-Lao Friendship Bridge First or 1st is the ordinal form of the number one (#1). First or 1st may also refer to: *World record, specifically the first instance of a particular achievement Arts and media Music * 1$T, American rapper, singer-songwriter, DJ, and reco ...

, funded by the Australian government as

development aid Development aid is a type of foreign/international/overseas aid given by governments and other agencies to support the economic, environmental, social, and political development of developing countries. Closely-related concepts include: develop ...

for Laos.

Sections

Laos

* : Nateuy–Vientiane * Route 450: Vientiane–Thanaleng (

Vientiane Prefecture Vientiane (or ''Viengchan'', Also known as ''Vientiane Prefecture'' or ''Vientiane Municipality'') ( Lao: ນະຄອນຫຼວງວຽງຈັນ, ''Nakhônlouang ViangChan'') is a prefecture of Laos, in the northwest Laos. The nationa ...

First Thai–Lao Friendship Bridge The First Thai–Lao Friendship Bridge ( th, สะพานมิตรภาพ ไทย-ลาว แห่งที่ 1, ; lo, ຂົວມິດຕະພາບ ລາວ-ໄທ ແຫ່ງທຳອິດ, ) is a bridge over the Mekong, c ...

Thailand

* (Mittraphap Road): Nong Khai–Saraburi * (Phahonyothin Road): Saraburi–Hin Kong, Nong Khae District

References

{{AHN Roads in Laos Roads in Thailand Asian Highway Network