The Den-en-toshi Line (田園都市線, Den'entoshi-sen, "Garden City Line") is a major commuter line operated by the private railway operator Tokyu Corporation and connecting south-western suburbs of Tokyo and neighbouring Kanagawa Prefecture, with its western terminus of Chūō-Rinkan, to a major railway junction of western downtown Tokyo, Shibuya.

He envisioned new railway line and freeway and large, clean houses for commuters working in Tokyo.

[4] Tokyu has expanded the line to four tracks from Futako-Tamagawa to Mizonokuchi; most trains of the Ōimachi line run through this section to Mizonokuchi, with some local trains making the intermediate stops.

[6] At rush hour, an inbound train arrives as frequently as every 2 minutes 10 seconds.

[6] On weekends, two seven-car express trains per days are operated to/from Ōimachi and Nagatsuta.