NS TRAIN SERVICES AND STATIONS
On the line from Den Helder to Uitgeest and Amsterdam. At Heerhugowaard, 7 km north of Alkmaar, a branch line diverges east to Hoorn. Track 3 is generally used by terminating trains.
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.
Wikipedia link containing further station information and history.