Advisory Ramp Speed Sign - W13-3
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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
Advisory Ramp Speed Sign - W13-3
Advisory ramp speed signs play a crucial role in guiding drivers and preventing potential accidents at highway entry and exit points. Constructed on standard aluminum blanks with high-visibility reflective surfaces, these signs are designed to clearly communicate speed reduction recommendations to motorists in all lighting conditions. Engineered to meet DOT and MUTCD state and federal standards, the W13-3 Advisory Ramp Speed Sign ensures consistent and compliant road signage. The reflective materials and precise specifications make these signs effective safety tools for transportation departments and highway management professionals, helping to maintain smooth traffic flow and reduce the risk of ramp-related incidents.
Sign Specifications
MUTCD Code
W13-3
Sign Type
Warning Sign
Shape
Rectangle (Vertical)
Standard regulatory sign shape
Colors
Yellow background
Black legend
Compliance
MUTCD Compliant: This advisory speed sign meets federal standards per MUTCD Section 2C.08. Used to indicate recommended safe speed for conditions.
| Size | Dimensions | Application |
|---|---|---|
| StandardDefault | 24x30" | Conventional roads |
| Expressway | 36x48" | Expressways and freeways |
| Oversized | 48x60" | High-speed roads |
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
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
Mount directly below primary warning sign. Advisory speed must be multiple of 5 mph, determined by engineering study.
MUTCD Reference: Section 2C.08
Often Paired With
Signs commonly installed together per MUTCD guidelines
