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  1. Home
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  3. School Speed Zone Ahead Sign - S4-5a

School Speed Zone Ahead Sign - S4-5a

School Speed Zone Ahead Sign - S4-5a
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

School Speed Zone Ahead Sign - S4-5a

These School Speed Zone Ahead Signs provide critical safety guidance for motorists approaching educational areas. Designed to alert drivers about reduced speed limits, the signs help create a protective environment for students and pedestrians near school zones. Constructed on standard aluminum blanks with reflective materials, these signs offer maximum visibility during various lighting conditions and weather scenarios. Fully compliant with DOT and MUTCD state and federal standards (Model S4-5a), the signs meet all regulatory requirements for traffic safety signage. By providing clear, prominent warnings, these signs effectively encourage drivers to reduce speed and increase awareness in school zone areas.

Spec • 2026
MUTCD Compliant

Sign Specifications

MUTCD Code

S4-5A

Sign Type

School Sign

Shape

Rectangle (Horizontal)

Guide and information signs

Colors

ABC

Fluorescent Yellow-Green background

Black legend

Compliance

MUTCD Compliant: Reduced School Speed Ahead sign per Section 7B.15. Fluorescent yellow-green background required.

SizeDimensionsApplication
StandardDefault36x36"Conventional roads
Large48x48"Multi-lane roads
Compliance & Certifications

MUTCD Compliant

Federal standards

DOT Approved

State & Federal

ASTM D4956

Type III/IV/XI

10+ Years

Durability

High Intensity Prismatic (HIP)

Type: ASTM Type III/IV

Lifespan: 10 years

Brightness: ~360 cd/lux/m²

Traffic signs, work zones, roadways

Recommended

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 reduced school speed zone. Diamond shape with FYG background.

MUTCD Reference: Section 7B.15

Reference: MUTCD Section 7B.15

Often Paired With

Signs commonly installed together per MUTCD guidelines

End School Speed Limit Sign - S5-3

S5-3

End School Speed Limit Sign

S1-1 School Crossing - S1-1

S1-1

S1-1 School Crossing

View All Warning Signs