The central line (middle road) between Asuka-dera Temple's central axis and that of Kawahara-dera Temple, which was built in the last year of Emperor Tenchi's reign or the first year of Emperor Tenmu's reign, became one of standards in the design of Emperor Tenmu's capital, Fujiwara-kyo, and the distance between both axial lines became a standard measurement of grid lines for allotment of land in Asuka.
飛鳥寺の中軸線と天智天皇の末年か天武天皇初年に建てられた川原寺の中軸線との中心線（中道）は、天武朝の藤原京の設定の一基準となり、両中軸の間隔は亦、飛鳥の方格地割りの基準となった。