Asian Highway 16 (AH16) is a road in the Asian Highway Network running from Tak, Thailand to Đông Hà, Vietnam connecting AH1 and AH2 to AH1 after AH1 takes a turn from south to North after crossing Cambodia. The route is as follows:
Thailand Route 12: Tak () - Phitsanulok ()- Khon Kaen () - Somdet - Mukdahan Route 212: Mukdahan - Bang Sai Yai Route 239: Second Thai–Lao Friendship Bridge
Laos Route 9W: Savannakhet - Xeno Route 13: Xeno (concurrent with for 3 km) Route 9E: Xeno - Xépôn - Dansavan
Vietnam QL9: Lao Bảo - Đông Hà ()
References