Survey Crew Sign - W21-6-O
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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
Survey Crew Sign - W21-6-O
This high-visibility Survey Crew Sign provides critical safety protection for road and infrastructure survey teams. Constructed from reflective aluminum standard punched blanks, the sign meets all DOT and MUTCD specifications for the W21-6-O standard traffic control device. Designed to maximize visibility in low-light conditions, the sign's reflective material alerts drivers to the presence of survey personnel, helping prevent potential accidents and ensuring worker safety. The durable aluminum construction offers exceptional resistance to weathering and environmental damage, guaranteeing long-term performance and reliable use in demanding roadside conditions.
Sign Specifications
MUTCD Code
W21-6-O
Sign Type
Construction Sign
Shape
Diamond
Standard warning sign shape
Colors
Orange background
Black legend
Compliance
MUTCD Compliant: This work zone warning sign meets federal standards per MUTCD Section 6F.16. Orange background indicates temporary traffic control.
| Size | Dimensions | Application |
|---|---|---|
| ConventionalDefault | 36×36" | Low-speed work zones |
| Freeway | 48×48" | High-speed work zones |
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
Install in advance of work zone per MUTCD Chapter 6F. Orange background for temporary conditions. Remove or cover when work not in progress.
MUTCD Reference: Section 6F.16
Often Paired With
Signs commonly installed together per MUTCD guidelines
