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  1. Home
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  3. Road Narrows Symbol Sign - W5-2a
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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

Road Narrows Symbol Sign - W5-2a

Road hazards demand clear communication, and this W5-2a Road Narrows Symbol Sign delivers precisely that critical message to motorists. Constructed from durable aluminum with high-quality reflective materials, the sign ensures maximum visibility during day and night driving conditions. Engineered to meet DOT and MUTCD standards, this sign features standard punched blanks available in high intensity and diamond grade reflective options. The W5-2a symbol provides an immediate, universally recognized warning to drivers about an upcoming reduction in roadway width, helping to prevent potential accidents and maintain smooth traffic flow.

Spec • 2026
MUTCD Compliant

Sign Specifications

MUTCD Code

W5-2A

Sign Type

Warning Sign

Shape

Diamond

Standard warning sign shape

Colors

ABC

Yellow background

Black legend

Compliance

MUTCD Compliant: This road width warning sign meets federal standards per MUTCD Section 2C.23. Used to warn of narrow roads or bridges.

SizeDimensionsApplication
Conventional RoadDefault30×30"Two-lane roads, residential areas
Multi-Lane36×36"Multi-lane roads, higher speed limits
Expressway48×48"Expressways, freeways, high-speed roads
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 narrow roadway section. Placement distance based on approach speed.

MUTCD Reference: Section 2C.23

Reference: MUTCD Section 2C.23

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

View All Warning Signs

Road Narrows Symbol Sign - W5-2a

Road Narrows Symbol Sign - W5-2a
Min: 1 • Max: 1000
Unit Price:$0.00
Quantity:× 1
Total:$0.00

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