Asian Highway 1 is the longest east–west route of the Asian Highway Network, running 20,557 km from Tokyo, Japan via the Korean Peninsula, China, Mainland Southeast Asia, South Asia, and the Iranian P
AH1 at Nihonbashi, Tokyo, the "zero milepost" for measuring highway distances to Tokyo.
Signage along the Gyeongbu Expressway with AH 1 route marker
The Asian Highway Network, 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 to imp
AH1
…Asian Highway 1 (AH1) is the longest east–west route of the Asian Highway Network, running 20,557 km (12,774 mi) from Tokyo, Japan via the Korean Peninsula (South Korea and North Korea), China (Mainland China and Hong Kong), Mainland…
Asian Highway 2 sign near Ratchaburi, Thailand
A section of Malaysia's North-South Expressway in Penang. Note the Asian Highway 2 signage.