Regulatory Road Sign (R2-5b)
Work Zone Speed Limit Sign Meaning & Driving Rules
Mandates enforceable lower speed limits inside an active construction or road work zone.
Required Driver Action & Right-of-Way Protocol
Reduce speed to the posted work zone limit. Maintain increased following distance and watch for workers.
Detailed Overview & Purpose
The Work Zone Speed Limit sign (R2-5b) establishes a legally binding speed reduction through construction areas. Fines for violating work zone speed limits are doubled or tripled under state law in all 50 states.
Key Standard & Origin: Fines double in work zones even if workers are not actively visible in the roadway.
Where You'll Find This Sign
Entry points and corridors of active highway construction zones.
Common Driver Mistakes to Avoid
Assuming the work zone speed limit only applies during standard daylight working hours.
How This Sign Appears on the DMV Knowledge & Road Test
Mandatory exam question on doubled work zone fines and worker safety rules.
Legal Penalties and Moving Violations
Speeding in a work zone carries statutory doubled/tripled fines ($300–$1,000+).
When you encounter the official Work Zone Speed Limit (R2-5b) on a roadway, what is your legal duty?
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