Plans exist to build a
Kama-Kama Line that would extend the
Tokyu Tamagawa Line from Kamata eastward by approximately 800 m to
Keikyu Kamata Station on the
Keikyu Main Line and
Keikyu Airport Line. This would provide an interchange between the lines, improving accessibility to Tokyo's
Haneda Airport ahead of the
2020 Summer Olympics. ,
Ōta Ward has agreed with the
Tokyo Metropolitan Government to pay 70% of the project cost of while having the city government responsible for the remaining 30%. ==Passenger statistics==