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  1. Home
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  3. Wrong Way Sign - R5-1a

Wrong Way Sign - R5-1a

Wrong Way Sign - R5-1a
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

Wrong Way Sign - R5-1a

These Wrong Way Signs are critical safety tools designed to prevent potentially dangerous driving errors. Constructed from durable aluminum with standard reflective blanks, the signs meet all DOT and MUTCD state and federal regulatory standards for high-visibility traffic guidance. Engineered to withstand varied weather conditions, these R5-1a signs feature pre-punched mounting holes for straightforward installation across multiple surfaces. The reflective materials ensure maximum visibility during both daytime and nighttime conditions, effectively alerting drivers when they are traveling in an incorrect direction and helping reduce the risk of head-on collisions.

Spec • 2026
MUTCD Compliant

Sign Specifications

MUTCD Code

R5-1A

Sign Type

Regulatory Sign

Shape

Rectangle (Vertical)

Standard regulatory sign shape

Colors

ABC

White background

Black legend

Compliance

MUTCD Compliant: Exclusionary sign per MUTCD Section 2B.34.

SizeDimensionsApplication
StandardDefault36x24"Conventional roads
Multi-Lane42x30"Multi-lane roads, freeways
Minimum30x18"Low-volume 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 at entrance to one-way roadway facing wrong-way traffic.

MUTCD Reference: Section 2B.34

Reference: MUTCD Section 2B.34

Often Paired With

Signs commonly installed together per MUTCD guidelines

Do Not Enter Sign - R5-1

R5-1

Do Not Enter Sign

View All Regulatory Signs