Left Turn Only Sign - R3-5L
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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
Product Details
Left Turn Only Sign - R3-5L
Enhance road safety and prevent potential traffic accidents with this professional Left Turn Only Sign (R3-5L). Designed to provide clear directional guidance, this sign effectively communicates lane movement restrictions to drivers at complex intersections. Constructed with reflective aluminum standard punched blanks, the sign meets all DOT and MUTCD state and federal standards. Available in high intensity and diamond grade materials, the sign ensures maximum visibility in diverse lighting conditions, helping drivers understand traffic flow requirements quickly and accurately. The R3-5L sign is a critical traffic management tool that reduces the risk of wrong-way turns and promotes smoother, safer navigation through intersections. Its durable construction and bold, legible lettering make it an essential component of comprehensive traffic control infrastructure.
Sign Specifications
MUTCD Code
R3-5L
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 | 24×24" | Low-volume roads, tight spaces |
| StandardDefault | 30×30" | Conventional roads |
| Large | 36×36" | Multi-lane roads, higher speeds |
| Oversized | 48×48" | Freeways, expressways |
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
