When work is being done on a ramp but the ramp remains open, the ON RAMP (W13-4P) plaque should be used to supplment the advance ROAD WORK sign. This sign is a square shape with a black legend and border on an orange background.
- Retroreflective sign is visible day and night
- Durable, weather-resistant traffic grade aluminum
- Pre-punched with radiused corners and 3/8" mounting holes