There's a significant volume of commuter traffic from stations on the mainland to the island of Sylt as only the wealthiest can afford to live there. Most of the other people who work on the island take the train from places like Bredstedt or Langenhorn.
251.011 slowed for the stop at Langenhorn with NOB81707, the 06:40 Hamburg-Altona to Westerland regional service on 18 July 2015.