Subway directional sign design

Quick answer：

Subway directional sign design refers to the process of creating visual indicators in a subway system that help passengers navigate through stations. These signs typically include symbols, icons, and text to convey information about platforms, exits, escalators, elevators, and other facilities. The design must be clear, consistent, and easy to understand, even for non-native speakers and people with visual impairments. It involves aspects of graphic design, usability, and accessibility.