Economic and Social Commission for Asia and the Pacific, 2003 Asian Highway Handbook (Memento vom 14. April 2012 im Internet Archive) (PDF; 2,3 MB), 2003, page 54 shows an aerial photo of the Yokohama Aoba Interchange, placing AH1 clearly on the Tomei Expressway rather than the other Tokyo-Nagoya expressway, the Chūō Expressway.