We recommend a unified system of symbols, colors, and messages so everyone in Europe understands instructions instantly, regardless of language.

These symbols and messages could be displayed in train stations, airports, schools, public buildings, and on digital platforms, ensuring that even tourists or non-native speakers can quickly understand what to do in an emergency.
Another innovative feature could be the use of vibration patterns and sounds as a universal language. Different vibration rhythms on smartphones could communicate different instructions, such as short rapid vibrations meaning “evacuate immediately” and long steady vibrations meaning “stay where you are.” This would be especially useful in noisy environments or for people with visual impairments.
Public spaces could also include dynamic lighting systems that guide people during emergencies. For example, green lights embedded in floors or walls could lead people safely to exits, while red lights could block dangerous paths. This “follow the light” approach would function like a physical navigation system, helping people move quickly without needing to read detailed instructions.
Color intensity could also play an important role. A stronger, brighter color could indicate higher urgency, while softer tones could signal lower risk. This way, people could understand not only the type of situation but also its severity at a glance.