Regulatory Road Sign (R3-8b)
Multi-Lane Left and Through Control Sign Meaning & Driving Rules
Controls complex multi-lane configurations featuring dedicated turn, optional turn/through, and through-only lanes.
Required Driver Action & Right-of-Way Protocol
Select your lane in advance and follow the posted movement arrow.
Detailed Overview & Purpose
The Multi-Lane Left and Through sign (R3-8b) provides comprehensive lane assignment guidance for wide intersection approaches.
Key Standard & Origin: Reduces intersection side-impact collisions by giving clear advance movement mandates.
Where You'll Find This Sign
Major arterial corridors and highway interchange terminals.
Common Driver Mistakes to Avoid
Misreading the diagram and executing an illegal turn from a through-only lane.
How This Sign Appears on the DMV Knowledge & Road Test
Tests multi-lane highway navigation and lane assignment rules.
Legal Penalties and Moving Violations
Improper lane usage carries moving violation points.
When you encounter the official Multi-Lane Left and Through Control (R3-8b) on a roadway, what is your legal duty?
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