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  1. Home
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  3. Combined Speed Limit Sign - R2-4a

Combined Speed Limit Sign - R2-4a

Combined Speed Limit Sign - R2-4a
Min: 1 • Max: 1000
Unit Price:$0.00
Quantity:× 1
Total:$0.00

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Choose Your Reflectivity Grade

Compare visibility, durability, and ideal applications

Type I

Engineering Grade

Ideal Use

Parking lots

Brightness

Standard

General Lifespan

7 years

Night-time Visibility

500 feet away

Type IV

High Intensity Prismatic

Ideal Use

Roadways

Brightness

High

General Lifespan

10 years

Night-time Visibility

1000 feet away

Type IX

Diamond Grade

Ideal Use

High-speed roadways

Brightness

Maximum

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

Spec • 2026
MUTCD Compliant

Sign Specifications

MUTCD Code

R2-4A

Sign Type

Regulatory Sign

Shape

Rectangle (Vertical)

Standard regulatory sign shape

Colors

ABC

White background

Black legend

Compliance

MUTCD Compliant: Speed limit sign per MUTCD Section 2B.13.

SizeDimensionsApplication
StandardDefault24x30"Conventional
Compliance & Certifications

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

Recommended

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

Reference: MUTCD Section 2B.13

Often Paired With

Signs commonly installed together per MUTCD guidelines

Do Not Enter Sign - R5-1

R5-1

Do Not Enter Sign

Speed Limit Sign - R2-1

R2-1

Speed Limit Sign

Stop Signs - R1-1

R1-1

Stop Signs

4 Way Stop Sign - R1-3

R1-3

4 Way Stop Sign

One Way Right Sign - R6-1R

R6-1R

One Way Right Sign

Truck Speed Limit Sign - R2-2

R2-2

Truck Speed Limit Sign

View All Regulatory Signs