Stauanfälligkeit

Stauanfälligkeit is a German term that refers to the specific design vulnerability of a traffic signal intersection, where a combination of traffic conditions and signal settings can cause drivers to experience recurring and predictable delays. This phenomenon can be observed at intersections with a high traffic volume, particularly at completely operated intersections where the traffic signals are not coordinated.

The term "Stauanfälligkeit" literally means "congestion susceptibility", and it describes the tendency of such intersections to become congested and cause traffic jams, even when the overall traffic volume is not particularly high. This occurs because the traffic signals can be set to create "ministrikes", or sequences of signal settings that allow traffic to flow for short periods but then immediately cause a long delay.

The Stauanfälligkeit can be caused by a variety of design and operational factors, including inadequate signal timing, insufficient capacity, and inadequate traffic control measures. It is particularly problematic in urban areas with high traffic volumes and a high density of intersections. In Germany and other parts of Europe, traffic planners and engineers are working to design and operate intersections in a way that minimizes the likelihood of Stauanfälligkeit, often through the use of coordinated signal timing and other advanced traffic management techniques.

Overall, the concept of Stauanfälligkeit highlights the importance of understanding and addressing traffic flow patterns and congestion susceptibility in the design and operation of urban traffic systems.