At each bridge that needs to be opened for passing ships, bells will ring, red lights will flash, and barriers will close when the bridge opens. Very occasionally pedestrians, cyclists or drivers do not notice this. But much more often it is a deliberate action to quickly cross the bridge, according to Rijkswaterstaat. In 2021, a van from the opened bridge at Terneuzen dived into an inland vessel, resulting in one death and five injuries.