Set options for the navigation service
| Attribute | Data type | Default | Description |
|---|---|---|---|
| avoid_construction | Boolean | false | Indicates whether to avoid known construction areas. |
| avoid_ferries | Boolean | false | Indicates whether to avoid routes that have ferries. |
| avoid_motorways | Boolean | false | Indicates whether to avoid motorways (controlled-access highways). |
| avoid_seasonal_roads | Boolean | false | Indicates whether to avoid seasonal roads. |
| avoid_time_restricted | Boolean | false | Indicates whether to avoid time-restricted roads. |
| avoid_tolls | Boolean | false | Indicates whether to avoid toll roads. |
| avoid_tunnels | Boolean | false | Indicates whether to avoid roads that have tunnels. |
| avoid_unpaved | Boolean | false | Indicates whether to avoid unpaved roads. |
| daynight | String | both | Set map display to day mode, night mode, or both (not currently implemented). |
| language | String | en_US | Set the language. |
| routing | String | fastest | Set routing method (not currently implemented). |
| show_turn_restrictions | Boolean | true | Show turn restrictions. |
| units | String | metric | Set the units for distance (not currently implemented). |
| voice | String | Rupert | Set the voice persona (not currently implemented). |