What is the color and purpose of warning signs?

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Warning signs are meant to give you advanced notice about hazards or changes in the road ahead so you can slow down and be prepared. The color used for these signs is bright yellow because it stands out and signals caution. When you’re near construction work, the color changes to orange to reflect an active work zone and guide you through temporary traffic patterns. This color cue helps you adjust speed and position to keep everyone safe. Other colors have different jobs: blue signs provide information, red signs indicate stopping or prohibitions, and green signs show permitted movements. The key idea is that warning signs use color to tell you to expect something ahead that could require slower, more careful driving.