Detour Arrow Left Signs - M4-10L
Secure checkout • 100% satisfaction guaranteed
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
Detour Arrow Left Signs - M4-10L
These detour signs feature radius corners and 3/8-inch prepunched holes for easy mounting and installation. Constructed to meet stringent DOT and MUTCD state and federal guidelines, the M4-10L Detour Arrow Left Sign ensures clear traffic direction and regulatory compliance. Available in high intensity and diamond grade reflective materials, these signs provide excellent visibility and legibility in various lighting and weather conditions. The precision-engineered design offers durable performance for temporary and permanent traffic management applications.
Sign Specifications
MUTCD Code
M4-10L
Sign Type
Route Marker
Shape
Rectangle (Vertical)
Standard regulatory sign shape
Colors
Green background
White legend
Compliance
MUTCD Compliant: Advance Turn Arrow auxiliary per Section 2D.36. Indicates upcoming route direction change.
| Size | Dimensions | Application |
|---|---|---|
| StandardDefault | 24x12" | Conventional roads |
| Large | 30x15" | 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
Mount with route marker assembly to indicate advance turn direction for route.
MUTCD Reference: Section 2D.36
Often Paired With
Signs commonly installed together per MUTCD guidelines
