Research Institutes
National Institute for Land and Infrastructure Management
http://www.nilim.go.jp/english/eindex.htm
Public Works Research Institute
http://www.pwri.go.jp/eindex.htm
Public Corporations
Japan Highway Public Corporation (Nihon Doro Kodan)
http://www.jhnet.go.jp/english_new/index.html
Metropolitan Expressway Public Corporation
http://www2.mex.go.jp/profile/guide_english/index.html
Hanshin Expressway Public Corporation
http://www.hepc.go.jp/english/index.html
Honshu-Shikoku Bridge Authority
http://www.hsba.go.jp/e-index.htm
Foundations and Associations
Organization for Road System Enhancement (ORSE)
http://www.orse.or.jp/english/
Vehicle Information and Communication System (VICS)
http://www.vics.or.jp/english/index.html
Highway Industry Development Organization (HIDO)
http://www.hido.or.jp/ITSHP_e/
ITS Japan
http://www.its-jp.org/english/