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© 2026 TrafficSigns.com — A division of Traffic Sign Corporation

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  1. Home
  2. Warning Signs
  3. Merge Right Arrow Sign - W4-1R

Merge Right Arrow Sign - W4-1R

Merge Right Arrow Sign - W4-1R
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

Merge Right Arrow Sign - W4-1R

Guide drivers safely and efficiently with this precision-engineered Merge Right Arrow Sign. Designed to meet critical transportation safety standards, the W4-1R sign provides clear directional guidance for vehicles navigating lane transitions and complex roadways. Constructed on aluminum standard punched blanks with a highly reflective surface, this sign ensures maximum visibility in both daytime and low-light conditions. Available in high intensity and diamond grade reflective options, the sign complies fully with DOT and MUTCD state and federal regulations, making it an essential tool for effective traffic management and accident prevention.

Spec • 2026
MUTCD Compliant

Sign Specifications

MUTCD Code

W4-1R

Sign Type

Warning Sign

Shape

Diamond

Standard warning sign shape

Colors

ABC

Yellow background

Black legend

Compliance

MUTCD Compliant: This merge/lane transition warning sign meets federal standards per MUTCD Section 2C.38. Used to warn of lane changes ahead.

SizeDimensionsApplication
Minimum30x30"Low-volume roads
StandardDefault36x36"Conventional roads
Expressway48x48"Expressways and freeways
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 in advance of merge point or lane transition. Placement distance per MUTCD Table 2C-4.

MUTCD Reference: Section 2C.38

Reference: MUTCD Section 2C.38

Often Paired With

Signs commonly installed together per MUTCD guidelines

Right Turn Arrow Sign - W1-1R

W1-1R

Right Turn Arrow Sign

Road Work (distance) Sign - W20-1

W20-1

Road Work (distance) Sign

Pedestrian Crossing Sign - W11-2

W11-2

Pedestrian Crossing Sign

Road Closed (distance) Sign - W20-3

W20-3

Road Closed (distance) Sign

Stop Ahead (Symbol) Sign - W3-1

W3-1

Stop Ahead (Symbol) Sign

Workers Ahead Sign - W21-1

W21-1

Workers Ahead Sign

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