According to recent findings, the scale of the new capital, Heijokyo, was almost same as the old capital Fujiwarakyo, in fact Fujiwarakyo was even greater although compared to Chang'ancheng, it was not even one quarter of the size.
近年の知見では新都平城京の規模は旧都藤原京とほぼ変わらず、むしろ藤原京のほうが広いぐらいであり、長安城に比較すれば4分の1程度にすぎなかった。