Resumen
Two projects contain the conflict between turning vehicles and straight ahead driving cyclists. One out of four of all accidents in Germany are accidents with bicycles. In Addition, most of the accidents end with heavy or deathly personal injury. Especially accidents with right turning trucks and straight ahead driving cyclist are on one hand rarely but on the other hand very dangerous because of gravity results of an accident. Finally one of the main problems is the conflict during the driving by green traffic light. Furthermore the obstructed view is a big problem for this accident constellation.