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 in
Nateuy,
Laos, through
Muang Xay,
Luang Prabang,
Vang Vieng,
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 b ...
.
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, 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