  Urban traffic is a logistic issue which can have many societal implications,
especially when, due to a too high density of cars, the network of streets of a
city becomes blocked, and consequently, pedestrians, bicycles, and cars start
sharing the same traffic conditions potentially leading to high irritations (of
people) and therefore to chaos. In this paper we focus our attention on a
simple scenario: We model the driver's irritation induced by the presence of a
roadblock. As a natural generalization, we extend the model for the two one-way
crossroads traffic presented by M.E. Fouladvand and M. Nematollahi to that of a
roadblock. Our discrete model defines and minimizes the total waiting time. The
novelty lies in introducing the (total) driver's irritation and its
minimization. Finally, we apply our model to a real-world situation: rush hour
traffic in Hillegom, The Netherlands. We observe that minimizing the total
waiting time and minimizing the total driver's irritation lead to different
traffic light strategies.
