Symbols should be at least 2.5m (8ft) long and made to contrast from their background.
| Message | Ground Symbol |
|---|---|
| Require Assistance |  |
| Require Medical Assistance |  |
| No or Negative |  |
| Yes or Affirm |  |
| Proceeding in this direction |  |
Symbols should be at least 2.5m (8ft) long and made to contrast from their background.
| Message | Ground Symbol |
|---|---|
| Require Assistance | |
| Require Medical Assistance | |
| No or Negative | |
| Yes or Affirm | |
| Proceeding in this direction | |