Final answer:
Rectangle or diamond-shaped signs that are orange with black lettering are construction signs, intended to provide warnings about road work or traffic changes, offering high visibility for safety.
Step-by-step explanation:
The signs that are rectangle or diamond shaped, orange in color with black lettering are typically construction signs. These signs are used to warn drivers and pedestrians of road work, detours, or other temporary changes in normal traffic patterns. They are designed to be highly visible in all light conditions. The use of orange for safety purposes extends beyond road signs; it is also used for the uniforms of emergency workers. The color orange carries complex meanings, such as representing that which is holy in Buddhist cultures and is associated with the royal family in the Netherlands for patriotic purposes.
Symbols have significant impact, often symbolizing more than their direct message when used out of context. However, regarding traffic signs, they convey standardized, universal messages that are crucial for safety on the roads. The shape, color, and symbolism of road signs are designed for immediate recognition to ensure compliance and promote safety.