On the line from Utrecht to S-Hertogenbosch and Eindhoven. Immediately south of the station, a line diverges east to Tiel, where connections are available with diesel operated trains continuing further east to Arnhem. At Geldermalsen Aansluiting (Interlocking), 1 km north of the station, a line diverges west to Dordrecht. The two main tracks are separated far apart at Geldermalsen, which has one island platform served by separate station tracks which diverge from the main tracks. The main tracks have straight routes for Intercity trains not stopping. The platform has "a" and "b" sections, with crossovers at the middle of the platform connecting with the outside main tracks.

Mapping the Station and Lines
Zoomable Google Maps show station tracks, track numbers, and rail routes radiating away.

Typical Rail Services/Normal Track Assignments
Track numbers where the regular NS services normally depart the station.

3a  noord/north
4a  Geldermalsen-Dordrecht
4b  zuid/south


Geldermalsen Station
Wikipedia link containing further station information and history.