本文以《左傳》為範圍，考論春秋齊國交通路線。以齊都臨淄為核心，輻射為南向、西南向、西向、北向、東向等五個方向之道路。南向交通路線主要幹道為「臨淄—艾陵」，自艾陵又分「艾陵—堂阜」，「艾陵—夾谷（祝其）」，「艾陵—博」三道。西南向路線前半段路程途經都邑為「臨淄—祝柯」，至祝柯後又分「祝柯—靡笄山」、「祝柯—平陰」二道。平陰以下又分「平陰—京茲」、「平陰—靡笄」、「平陰—陽州」三線，第二線又與上述「祝柯—靡笄山」連接。「平陰—陽州」途經穀時，又分支「穀—莘」一線。西向路線途經都邑為「臨淄—轅」，北向路線途經都邑為「臨淄—薄姑」。東向路線又分南北二道，北道途經都邑有「臨淄—密」；此外，邶殿又北向分支一路至鄑。至於南道前段途經都邑為「臨淄—東陽」，至東陽後又分三路，由北至南依序為「東陽—棠」、「東陽—介根」、「東陽—莒」。此外，上述第三路自郱又東南分出一路可達郚，是歧出之一線。

This article discusses traffic routes in Qi state in Spring and Autumn Period, and it only refers to Zuo-Zhuan. There were five routes in the Qi’s capital Linzi, and there were five directions of them: southward, southwestward, westward, northward and eastward. The main road to the south was “Linzi to Ailing”. It forked to three roads at Ailing, and they were “Ailing to Tangfu”,“ Ailing to Jiagu (Zhuqi)” and“ Ailing to Bo”. The first half distance to Zhuke by way of capital Linzi was southwestward. It forked to two roads at Zhuke, and they were “Zhuke to Mijishan” and “Zhuke to Pingyin”. In addition, Pingyin was an interchange of three roads, which were “Pingyin to Jingzi”,“ Pingyin to Mijishan” and“ Pingyin to Yangzhou”. The road “Pingyin to Mijishan” connected to “Zhuke to Mijishan”. Gu was on the road by“ Pingyin to Yangzhou”, and the road“Gu to Shen” was the way down. “Linzi to Yuan” was westward, and “Linzi to Baogu” was northward. There were two roads on eastward route.“ Linzi to Mi” was northbound, and “Linzi to Dongyang” was southbound. There was a branch to north down to Zi at Beidian on the way northbound. The first half distance to Dongyang by way of capital Linzi was southwestward. It forked to three roads at Dongyang, and they were“ Dongyang to Tang”,“ Dongyang to Jiegen” and“ Dongyang to Ju”. There was a branch to southeast down to Wu at Ping on the road“ Dongyang to Ju”.