A new subway line connecting central Tokyo with the capital's waterfront by the 2040s is being planned to meet the needs of commuters in these growing areas, The Asahi Shimbun has learned.

Plans are in the works to extend two Tokyo Metro subway lines ... connect Toyosu Station on the Yurakucho Line with Sumiyoshi Station of the Hanzomon Line to the north. The extension would ...

The Ikegami line runs through southeast Tokyo linking Kamata with Gotanda. Trains take 22 minutes to cover the line's 10.9 kilometers. The line winds through local neighborhoods, also cutting ...