is a national expressway in the Kinki region of Japan. It is owned and operated by West Nippon Expressway Company.
Meihan is a kanji acronym of two characters. The first character represents Nagoya (Ã¥ÂÂå¤å±Â) and the second character represents Osaka (大éª). Nishi (西) means west; together with the Meihan Expressway and Higashi-Meihan Expressway, it forms a corridor linking the greater Nagoya and Osaka areas.