Køge Bugt-banen is one of six radial S-train lines in Copenhagen; it connects the city center to communities along Køge Bugt (the bay of Køge) and terminates in the city of Køge about 35 km southwest of central Copenhagen.
However, a few engines survived with Bloustrød-banen, as well as one engine surviving as a display item in Assens park until the mid-1990s.