Gegengleis

Gegengleis is a German term used in railway operations to describe a train traveling on a track designated for trains moving in the opposite direction. This is a non-standard operating condition that usually occurs under specific circumstances, such as during track maintenance, line closures, or emergencies. When a train operates on the Gegengleis, it is often referred to as "running against the normal direction of traffic" or "wrong-line working."

Operating on the Gegengleis requires strict adherence to safety protocols. Signal aspects are modified to ensure the safety of the train and prevent collisions. The speed of trains is typically reduced, and they are often accompanied by a pilotman or a vehicle preceding them to ensure the track ahead is clear. Communication between the train crew, signal box, and relevant railway authorities is paramount.

The use of Gegengleis is a temporary measure and is carefully planned and authorized. Its purpose is to maintain train service continuity or to enable essential maintenance work to be carried out on one of the main tracks. While it can be an efficient solution, it inherently increases operational complexity and requires heightened vigilance from all personnel involved. The implementation of Gegengleis is governed by detailed regulations within railway operating manuals.