Economic and Social Commission for Asia and the Pacific,2003 Asian Highway HandbookArchived 2012-04-14 at the Wayback Machine, 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.
Economic and Social Commission for Asia and the Pacific,2003 Asian Highway HandbookArchived 2012-04-14 at the Wayback Machine, 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.