Targets will see red traffic lights more frequently than green traffic lights. Usually, the traffic light will turn red just before the target arrives, so his waiting time will be maximal.
If the target has understood, then the stalkers may change tactics and give the target a green light when he arrives. But, this type of interruption in the harassment generally doesn’t last longer than one day.
A special case is the railroad, which has also an annoying sound that surprises.
Another special case is a bridge which can be closed.
© 2017 Cliff Huylebroeck