Traffic From Left Does Not Stop Sign - W4-4A
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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
Traffic From Left Does Not Stop Sign - W4-4A
Intersections with complex traffic patterns require clear, precise signage to prevent potential accidents and guide driver behavior. This W4-4A traffic sign is specifically designed to alert motorists about left-turning traffic that does not stop, providing critical information for navigating potentially hazardous roadway configurations. Manufactured to meet DOT and MUTCD standards, the sign is constructed from reflective aluminum standard punched blanks, ensuring maximum visibility in both daytime and nighttime conditions. Available in high intensity and diamond grade materials, this sign offers durable communication of traffic rules to all road users, enhancing overall intersection safety for drivers, pedestrians, and cyclists.
Sign Specifications
MUTCD Code
W4-4A
Sign Type
Warning Sign
Shape
Diamond
Standard warning sign shape
Colors
Yellow background
Black legend
Compliance
MUTCD Compliant: This merge/lane transition warning sign meets federal standards per MUTCD Section 2C.38. Used to warn of lane changes ahead.
| Size | Dimensions | Application |
|---|---|---|
| Conventional RoadDefault | 30×30" | Two-lane roads, residential areas |
| Multi-Lane | 36×36" | Multi-lane roads, higher speed limits |
| Expressway | 48×48" | Expressways, freeways, 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
Install in advance of merge point or lane transition. Placement distance per MUTCD Table 2C-4.
MUTCD Reference: Section 2C.38
Often Paired With
Signs commonly installed together per MUTCD guidelines
