Two Way Left Turn Lane Sign - R3-9a
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Choose Your Reflectivity Grade
Compare visibility, durability, and ideal applications
Engineering Grade
Ideal Use
Parking lots
Brightness
General Lifespan
7 years
Night-time Visibility
500 feet away
High Intensity Prismatic
Ideal Use
Roadways
Brightness
General Lifespan
10 years
Night-time Visibility
1000 feet away
Diamond Grade
Ideal Use
High-speed roadways
Brightness
General Lifespan
10+ years
Night-time Visibility
1500 feet away
Sign Specifications
MUTCD Code
R3-9A
Sign Type
Regulatory Sign
Shape
Rectangle (Vertical)
Standard regulatory sign shape
Colors
White background
Black legend
Compliance
MUTCD Compliant: This turn/lane control sign meets federal standards per MUTCD Section 2B.18. Used to prohibit or require specific turning movements.
| Size | Dimensions | Application |
|---|---|---|
| Small | 12×18" | Low-volume roads, parking lots |
| StandardDefault | 18×24" | Conventional roads |
| Large | 24×30" | Multi-lane roads |
MUTCD Compliant
Federal standards
DOT Approved
State & Federal
ASTM D4956
Type III/IV/XI
10+ Years
Durability
Engineer Grade (EG)
Type: ASTM Type I
Lifespan: 5-7 years
Brightness: ~50 cd/lux/m²
Parking lots, low-speed areas, non-critical signage
High Intensity Prismatic (HIP)
Type: ASTM Type III/IV
Lifespan: 10 years
Brightness: ~360 cd/lux/m²
Traffic signs, work zones, roadways
Diamond Grade (DG3)
Type: ASTM Type XI
Lifespan: 10-12 years
Brightness: ~580 cd/lux/m²
Critical signs, freeways, overhead signs
Install at or near the intersection where the turning restriction applies. Should be visible to drivers making the approach. May be supplemented with pavement markings.
MUTCD Reference: Section 2B.18
Often Paired With
Signs commonly installed together per MUTCD guidelines
