What does red pavement marking or reflectors indicate?

Red pavement markings or reflectors indicate that a roadway must not be entered. This is a crucial safety measure meant to prevent drivers from inadvertently entering areas where entry is prohibited, such as emergency areas or certain restricted zones. The color red universally conveys a warning or prohibition, making it easily recognizable for drivers. This marking serves as a clear signal to enhance awareness and guide safe driving behaviors by marking areas that should be avoided for the safety of all road users.