BMV Practice Test

Merge signs and other warning signs are typically shaped like a diamond. This shape is utilized because it effectively draws attention and signals drivers to be cautious of potential hazards or changes in the road conditions ahead. The diamond shape is universally recognized as a warning sign, which helps reinforce the urgency and importance of the information being conveyed to drivers.

In contrast, circle shapes usually indicate regulatory signs like railway crossings or speed limits, while square shapes often denote guidance signs that provide directional information. Triangles are primarily used for yield signs, alerting drivers to yield the right of way. Each shape serves a specific purpose in traffic signage, but the diamond shape is distinctive for warning signs, making it easier for drivers to recognize and respond appropriately to potential dangers on the road.