Metropolitan Expressway Public Corporation
Covers metropolitan Tokyo, Japan. Site includes route log, history, toll information, and organization structure details. http://www.mex.go.jp/english/
Intertoll
Maintains toll roads in Asia and Africa. http://www.intertoll.co.za/
Korea Highway Corporation
Deals with construction, repair and maintenance, toll collection, development of areas by expressways, and related information. Includes details about a revised route numbering system. http://www.freeway.co.kr/eng/html/Corporation/sub01_01.html
Asian Highway Network
Network designed by the United Nations. Site includes history, maps, and photography. http://www.unescap.org/tctd/ah/
Asian Roads
Details and photos from a 2001 trip. http://members.cox.net/mkpl3/asia/asia.html
Utilities - Maps of India
Information about India's national highways. http://www.mapsofindia.com/utilities/