The outer track is in a dive-under, running beneath the surface level for about 1500 metres, diving underneath the Gooilijn.

The Gooiboog offers a direct link between Almere, Hilversum and Utrecht.

In 1980 work began on the construction of the Flevolijn and in 1987 the line opened as far as Almere Buiten.

As early as 1987 the possibility of a link to Hilversum, Utrecht and Amersfoort was discussed.

At first it was planned to build a fly-over but residents of Weesp complained it would ruin their view of the Naardermeer.