Left Lane Closed Ahead Roll-Up Construction Signs - W20-5L-RU
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Product Details
Left Lane Closed Ahead Roll-Up Construction Signs - W20-5L-RU
Road construction safety depends on clear, visible signage that efficiently communicates changing traffic patterns to drivers. These Left Lane Closed Ahead Roll-Up Construction Signs provide critical information to motorists approaching work zones, helping prevent potential accidents and ensuring smooth traffic flow. Constructed with reflective aluminum standard punched blanks, these signs meet DOT and MUTCD state and federal standards for durability and visibility. The W20-5L-RU model is designed for easy installation and repositioning, allowing road crews to quickly adapt signage as construction progresses. Highly visible markings ensure drivers receive clear and immediate instructions about upcoming lane closures, supporting safer navigation through active work sites.
Sign Specifications
MUTCD Code
W20-5L-RU
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
