Right Lane Light Rail Transit Only Sign - R15-4a
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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
Right Lane Light Rail Transit Only Sign - R15-4a
This R15-4a sign provides critical guidance for road users in areas with dedicated light rail transit lanes. Constructed from durable aluminum with high-intensity reflective materials, the sign meets all DOT and MUTCD federal and state standards for visibility and compliance. The sign clearly indicates that the right lane is exclusively for light rail transit vehicles, helping to prevent potential traffic conflicts and improve overall road safety. Its diamond grade reflective surface ensures maximum legibility during day and night, effectively communicating lane restrictions to drivers in busy urban and transit corridor environments.
Sign Specifications
MUTCD Code
R15-4A
Sign Type
Regulatory Sign
Shape
Rectangle (Vertical)
Standard regulatory sign shape
Colors
White background
Black legend
Compliance
MUTCD Compliant: This railroad crossing sign meets federal standards per MUTCD Section 8B.04. The crossbuck is required at all highway-rail grade crossings.
| Size | Dimensions | Application |
|---|---|---|
| Small | 12×18" | Low-volume roads, parking lots |
| StandardDefault | 18×24" | Conventional roads |
| Large | 24×30" | Multi-lane 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
Crossbuck (R15-1): Install at all public highway-rail grade crossings. Mount on post 4 feet minimum from nearest rail. Number of Tracks plaque required when 2 or more tracks.
MUTCD Reference: Section 8B.04
Often Paired With
Signs commonly installed together per MUTCD guidelines
