Amsterdam Sloterdijk is a major railway junction situated to the west of Amsterdam Centraal station. It is at a rail-rail crossing with an additional chord (Hemboog). It is on the railway line from Amsterdam Centraal to Haarlem and the last station before the junction where the line Amsterdam Centraal-Zaandam diverges from it, and on the crossing west branch of the Amsterdam-Schiphol railway line between Schiphol and Amsterdam Centraal. The Hemboog chord connects the crossing lines, providing a direct connection between Schiphol and Zaandam. There are platforms at both crossing lines and at the Hemboog; for the latter there is a separate entrance on another side of the station square.