Table 4 Speech messages and their meanings
Speech message | Meaning |
|---|---|
Left and right are free | Free paths exist on both the left and the right in front of the user |
Left is free | Free path exists only on the left in front of the user |
Right is free | Free path exists only on the right in front of the user |
Stop, no free path | No free path on the left, right, or middle in front of the user (dead end) |