Combined Speed Limit Sign - R2-4a
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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
Combined Speed Limit Sign - R2-4a
This professional-grade Combined Speed Limit Sign (R2-4a) provides critical traffic guidance while meeting stringent DOT and MUTCD standards for roadway communication. Constructed from high-quality aluminum standard punched blanks, the sign delivers exceptional durability and visibility in diverse environmental conditions. The sign features high-intensity and diamond grade reflective surfaces, ensuring maximum legibility during day and night hours. Its precise design clearly communicates speed limit information to drivers, promoting road safety and regulatory compliance. Engineered to withstand various weather challenges, this sign represents a reliable solution for municipal and transportation infrastructure needs.
Technical Specifications
- Material: Aluminum standard punched blanks - Reflectivity: High intensity and diamond grade - Size: Standard R2-4a configuration - Compliance: DOT and MUTCD standards
Sign Specifications
MUTCD Code
R2-4A
Sign Type
Regulatory Sign
Shape
Rectangle (Vertical)
Standard regulatory sign shape
Colors
White background
Black legend
Compliance
MUTCD Compliant: Speed limit sign per MUTCD Section 2B.13.
| Size | Dimensions | Application |
|---|---|---|
| StandardDefault | 24x30" | Conventional |
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 on the right side of roadway at the beginning of the speed zone.
MUTCD Reference: Section 2B.13