The traffic light system is a crucial part of road safety in Germany, as in many other countries. It consists of three main colors:

1. **Red**: This means "stop." Vehicles must come to a complete halt at the stop line, crosswalk, or intersection. Pedestrians are allowed to cross when the pedestrian signal is green, but they should remain cautious.

2. **Yellow**: This color indicates that the light is about to change. When the light turns yellow, vehicles should prepare to stop if they haven't already entered the intersection. If a vehicle is too close to the intersection to stop safely, it may continue through, but caution is advised.

3. **Green**: A green light means "go." Vehicles may proceed through the intersection or continue on their path. However, it's important to be aware of pedestrians who may be crossing and cyclists who may be in the vicinity.

In addition to the standard colors, there are also pedestrian signals, which typically include a green figure for go and a red figure for stop.

Always pay attention to any specific rules indicated by additional signs near traffic lights or other road markings. Understanding these signals is essential for safe driving and complying with traffic laws in Germany.