During an inbound peak, Schiphol will operate 2 runways for landings and 1 runway for takeoffs.
Similarly during an outbound peak Schiphol will operate 2 runways for takeoffs and 1 for landings.

If inbound and outbound times overlap, you can expect a 2+2 configuration, with 2 runways open for landings and 2 for takeoffs.

The timeframe below is based on observations from LVNL of the past 14 days (or from start of the current season) up until 09-04-2012. Be aware that variations can and will occur.