location and time
The current geographic location in three dimensions (latitude, longitude, elevation) and the current time.
| Source | Flow | Destination | 
|---|---|---|
| Field Location and Time Data Source | location and time | Roadside Equipment | 
| Source | Flow | Destination | 
|---|---|---|
| Personal Location and Time Data Source | location and time | Personal Information Device | 
| Source | Flow | Destination | 
|---|---|---|
| Vehicle Location and Time Data Source | location and time | Vehicle OBE |