Regulatory Road Sign (R2-5a)
Reduced Speed Ahead Sign Meaning & Driving Rules
Advance regulatory warning that the legal speed limit will decrease significantly ahead.
Required Driver Action & Right-of-Way Protocol
Take your foot off the gas and brake smoothly so you enter the upcoming zone at the lower speed limit.
Detailed Overview & Purpose
The Reduced Speed Ahead sign (R2-5a) gives drivers advance warning of an upcoming lower speed zone (such as entering a town from a 55 mph highway into a 35 mph zone). Drivers must begin decelerating so their speed matches the new limit upon reaching the next speed limit sign.
Key Standard & Origin: You must be traveling at or below the lower speed limit the instant your front bumper reaches the new sign.
Where You'll Find This Sign
Approaches to towns, school zones, construction corridors, and congested arterial zones.
Common Driver Mistakes to Avoid
Waiting to brake until passing the lower speed limit sign rather than slowing down on the approach.
How This Sign Appears on the DMV Knowledge & Road Test
Tests proper speed transition protocols when approaching urban boundaries.
Legal Penalties and Moving Violations
Speed traps frequently enforce lower limits immediately at the boundary sign.
When you encounter the official Reduced Speed Ahead (R2-5a) on a roadway, what is your legal duty?
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