School Bus Stop Ahead Symbol Sign - S3-1b
Secure checkout • 100% satisfaction guaranteed
Choose Your Reflectivity Grade
Compare visibility, durability, and ideal applications
Engineering Grade
Ideal Use
Parking lots
Brightness
General Lifespan
7 years
Night-time Visibility
500 feet away
High Intensity Prismatic
Ideal Use
Roadways
Brightness
General Lifespan
10 years
Night-time Visibility
1000 feet away
Diamond Grade
Ideal Use
High-speed roadways
Brightness
General Lifespan
10+ years
Night-time Visibility
1500 feet away
Product Details
School Bus Stop Ahead Symbol Sign - S3-1b
This School Bus Stop Ahead Symbol Sign is a critical safety component designed to alert drivers to upcoming school bus stops. Manufactured to meet DOT and MUTCD state and federal standards, the sign provides essential advanced warning that helps prevent accidents involving school buses and other vehicles. Constructed on durable aluminum standard punched blanks, the sign offers superior visibility in all lighting conditions. It is available in high intensity and diamond grade reflective material, ensuring maximum durability and clear communication to motorists about the potential presence of children in the roadway. The S3-1b model serves as an important protective measure for student safety during transportation.
Sign Specifications
MUTCD Code
S3-1B
Sign Type
School Sign
Shape
Diamond
Standard warning sign shape
Colors
Fluorescent Yellow-Green background
Black legend
Compliance
MUTCD Compliant: School Bus Stop Ahead sign per Section 7B.13. Fluorescent yellow-green background required.
| Size | Dimensions | Application |
|---|---|---|
| StandardDefault | 36x36" | Conventional roads |
| Large | 48x48" | Multi-lane roads |
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
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 established school bus stops. Diamond shape with FYG background.
MUTCD Reference: Section 7B.13