Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Definition of the user mobility contexts.
| ID | Description |
|---|---|
| 1 | static, speed <= 0.1 m/s |
| 2 | slow walking, 0.1 m/s < speed <= 0.7 m/s (less than one step per second) |
| 3 | walking, 0.7 m/s < speed <= 1.4 m/s (1–2 steps per second) |
| 4 | fast moving, speed > 1.4 m/s (more then 2 steps per second, or driving) |
