"(神奈川) 横浜北西線が開通 東名-横浜港のアクセス向上" [(Kanagawa) Yokohama Northwest Line opens. Tomei-Yokohama Port Access Improvement]. Asahi Shimbun (in Japanese). 22 March 2020. Retrieved 22 March 2020.
"首都高 横浜北西線２２日開通" [Metropolitan Expressway Yokohama Northwest Route opening on the 22nd] (in Japanese). 20 March 2020. Archived from the original on 22 March 2020. Retrieved 22 March 2020.
nikkei.com
xtech.nikkei.com
"横浜環状北西線が事業認可から2年余で本格着工" [Full-scale construction begins on Yokohama Northwest Route less than two years after plans were approved] (in Japanese). 10 November 2014. Retrieved 21 March 2020.
shutoko.co.jp
"横浜北西線（横浜北線～東名高速）の概要" [Overview of the Yokohama Northwest Route (Yokohama North Route to Tōmei Expressway)] (PDF) (in Japanese). 26 September 2019. Retrieved 21 March 2020.
"横浜北西線開通記念イベントの中止について" [About the cancellation of Yokohama Northwest Route opening commemorative events] (in Japanese). 20 February 2020. Retrieved 21 March 2020.
trafficnews.jp
"住民の反対ゼロ 変わる高速道路建設、その新たな手法" [Zero opposition from residents: changing expressway construction, a new approach] (in Japanese). 28 June 2015. Retrieved 22 March 2020.
web.archive.org
"首都高 横浜北西線２２日開通" [Metropolitan Expressway Yokohama Northwest Route opening on the 22nd] (in Japanese). 20 March 2020. Archived from the original on 22 March 2020. Retrieved 22 March 2020.
yokohama.lg.jp
city.yokohama.lg.jp
"新たな高速道路を建設" [Build a new highway] (PDF). City of Yokohama (in Japanese). January 2020. Retrieved 22 March 2020.
