Group A: vertical position
This group tests how GPS accuracy changes with height: basement, ground floor, upper floors and rooftops.
Each session has 12 planned stops (below). After those, stops 13 to 16 are free: the participant picks any four places and stays at least 10 minutes at each.
Inside = inside a building. 2F-4F = second to fourth floor. Duration = the minimum time to stay.
| Stop | Context | Duration |
|---|---|---|
| 1 | Inside, ground floor, room center (3-5 m from entrance) | 15+ min |
| 2 | Inside, basement, center | 15+ min |
| 3 | Inside, 2F-4F, center | 15+ min |
| 4 | Inside, 5F or higher, deep interior | 15+ min |
| 5 | Inside, ground floor, within 2 m of street-facing window or door | 15+ min |
| 6 | Inside, basement, within 3 m of stair/escalator entrance | 15+ min |
| 7 | Inside, 2F-4F, within 2 m of exterior window | 15+ min |
| 8 | Inside, 5F or higher, near elevator/escalator | 15+ min |
| 9 | Street, ground level, sidewalk or covered arcade | 10+ min |
| 10 | Street, underground passage, mid-passage | 10+ min |
| 11 | Open space, plaza/park center, 10+ m from buildings | 15+ min |
| 12 | Building-attached outdoor, rooftop terrace 3F+ | 15 min |
Part of Experiment design.
Linked from Experiment design · Ground truth data