Asian Highway 16 (AH16) is a road in the

Asian Highway Network The Asian Highway Network (AH), also known as the Great Asian Highway, is a cooperative project among countries in Asia and the United Nations Economic and Social Commission for Asia and the Pacific (ESCAP) to improve their connectivity via hi ...

running from Tak,

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 ...

to Đông Hà,

Vietnam Vietnam or Viet Nam ( vi, Việt Nam, ), officially the Socialist Republic of Vietnam,., group="n" is a country in Southeast Asia, at the eastern edge of mainland Southeast Asia, with an area of and population of 96 million, making ...

connecting AH1 and

AH2 Asian Highway 2 (AH2) is a road in the Asian Highway Network running from Denpasar, Indonesia to Merak and Singapore to Khosravi, Iran. The route is connected to M10 of the Arab Mashreq International Road Network. The route is as follows: I ...

to AH1 after AH1 takes a turn from south to North after crossing

Cambodia Cambodia (; also Kampuchea ; km, កម្ពុជា, UNGEGN: ), officially the Kingdom of Cambodia, is a country located in the southern portion of the Indochinese Peninsula in Southeast Asia, spanning an area of , bordered by Thailand ...

. The route is as follows:

Thailand

Route 12: Tak () -

Phitsanulok Phitsanulok ( th, พิษณุโลก, ) is an important, historic city in lower northern Thailand and is the capital of Phitsanulok Province. Phitsanulok is home to Naresuan University and Pibulsongkram Rajabhat University, as well a ...

()-

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 ...

() - Somdet -

Mukdahan Mukdahan ( th, มุกดาหาร, ) is a town (''thesaban mueang'') and capital of Mukdahan Province, which became Thailand's 73rd province in 1982. In the northern region of the country, on the right (west) bank Mekong River, it was form ...

Route 212:

- Bang Sai Yai * Thai Highway-239

Route 239:

Second Thai–Lao Friendship Bridge The second (symbol: s) is the unit of time in the International System of Units (SI), historically defined as of a day – this factor derived from the division of the day first into 24 hours, then to 60 minutes and finally to 60 seconds each ...

Laos

Route 9W:

Savannakhet Savannakhet (ສະຫວັນນະເຂດ), officially named Kaysone Phomvihane ( lo, ໄກສອນ ພົມວິຫານ; th, ไกสอน พมวิหาน) since 2005 and previously known as ''Khanthaboury'' (ຄັນທະ ...

- Xeno *

Route 13: Xeno (concurrent with for 3 km) * Route 9E, LAO

Route 9E: Xeno - Xépôn - Dansavan

Vietnam

* QL9:

Lao Bảo Lao Bảo is a small town in Hướng Hóa District of Quảng Trị Province, Vietnam, located in the North Central Coast region, near the border with Laos. Its population is approximately 30,000. As Lao Bảo is located in an advantaged area ...

- Đông Hà () {{AHN Asian Highway Network Roads in Thailand Roads in Vietnam Roads in Laos