Transfer between the Blue and Green Line is possible at Center-Kita and Center-Minami Stations.

Feeder bus services from western Kawasaki City area run to Azamino Station.

[citation needed] The Blue Line (Lines 1/3) is operated as an integrated route of 40.4 kilometres (25.1 mi) between Shōnandai Station in Fujisawa and Azamino Station.

The Green Line (Line 4) opened on March 30, 2008, between Hiyoshi Station and Nakayama Station, operating distance 13.0 km (8.1 mi) (total extension distance 13.1 km (8.1 mi)).

[2][3] In June 2020, the Transportation Bureau started environmental impact assessment procedures of the extension project.