Runaway Truck Ramp (exit) Sign - W7-4B
Secure checkout • 100% satisfaction guaranteed
Product Details
Runaway Truck Ramp (exit) Sign - W7-4B
Critical safety signage for mountainous highways and steep grade roadways, this Runaway Truck Ramp Sign (W7-4B) provides essential visual communication for commercial vehicle operators. Manufactured from durable aluminum with standard punched blanks, the sign delivers advanced warning of emergency escape routes designed to prevent catastrophic brake failures. Constructed with high-visibility reflective materials, the sign meets all DOT and MUTCD regulatory standards for traffic control devices. Its robust design ensures legibility in challenging environmental conditions, allowing truck drivers to identify potential emergency ramp locations well in advance of reaching a critical descent point. The pre-drilled mounting holes facilitate straightforward installation on roadside infrastructure.
Sign Specifications
MUTCD Code
W7-4B
Sign Type
Warning Sign
Shape
Diamond
Standard warning sign shape
Colors
Yellow background
Black legend
Compliance
MUTCD Compliant: This hill warning sign meets federal standards per MUTCD Section 2C.26. Used to warn of steep grades 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 at top of grade for downhill warning, or in advance for uphill notification. Required when grade exceeds: 5% for 3000ft, 6% for 2000ft, 7% for 1000ft, 8% for 750ft, 9% for 500ft.
MUTCD Reference: Section 2C.26