The Ring Rail Line is a railway route in the area of the city of Vantaa, in the Greater Helsinki Metropolitan Area of Finland. It connects Helsinki-Vantaa Airport and the adjacent Aviapolis business a
A commuter train on line M at the Louhela railway station in the 1970s. The last commuter train on line M travelled on the rail on 30 June 2015, one day before the Ring Rail Line opened.