Curve Advisory Speed Right Sign - W1-2aR
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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
Curve Advisory Speed Right Sign - W1-2aR
This Curve Advisory Speed Right Sign (Model W1-2aR) provides critical guidance for drivers navigating challenging roadway geometry. Constructed on standard aluminum blanks with high-visibility reflective materials, the sign effectively communicates recommended speed limits for approaching right curves. Engineered to meet DOT and MUTCD state and federal standards, this sign ensures maximum safety by alerting drivers to potential speed adjustments before entering a curved section of roadway. The reflective surface guarantees clear visibility during both daytime and nighttime driving conditions, helping to reduce the risk of accidents and promote safer driving practices.
Sign Specifications
MUTCD Code
W1-2AR
Sign Type
Warning Sign
Shape
Diamond
Standard warning sign shape
Colors
Yellow background
Black legend
Compliance
MUTCD Compliant: This horizontal alignment warning sign meets federal standards per MUTCD Section 2C.06. Used to alert drivers of changes in roadway alignment.
| 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 on the right side of the roadway in advance of the curve or turn. Placement distance depends on posted speed: 100ft (25 mph), 175ft (35 mph), 250ft (45 mph), 350ft (55 mph). May be supplemented with Advisory Speed Plaque (W13-1P) showing recommended speed.
MUTCD Reference: Section 2C.06
Often Paired With
Signs commonly installed together per MUTCD guidelines
