相互乗り入れ

そうごのりいれ

expression, noun

•

mutual use of company facilities (e.g. rail tracks for through service, airport facilities, code-sharing, etc.)

相	inter-, mutual, together, each other, minister of state, councillor, aspect, phase, physiognomy
互	mutually, reciprocally, together
乗	ride, power, multiplication, record, counter for vehicles, board, mount, join
入	enter, insert