Bar signal
The bar signal belongs to the group of traffic lights and is used to regulate trams , trolleybuses , line buses and taxis in road traffic. Outwardly, the components are similar to a conventional signal system, but the light signals differ in their presentation. The red time is shown as a horizontal bar in white, the transition time is shown by a circle. At the start of the release time , either a triangle standing on top or a vertical or diagonal bar can light up. In the case of a triangle, also known as a permissive signal , the driver must give priority to traffic with right of way. This signal can be compared with the "sign 205: give way!" In the case of the bar, travel in the corresponding direction is enabled, analogous to the green arrow .
The signals are regulated in Germany in the road traffic regulations (StVO) and in the ordinance on the construction and operation of trams (BOStrab).