VI. EXPERIMENT
A. Method of the experiment
This experiment was conducted to confirm whether
information delivery works actually using geofencing. This
subsection describes our experiment method. A user carried a
real iPhone device, and defined a fence. Then the user entered
and exited the fence. The fence was installed in a circle whose
radius was 100m centered on Tokyo Senju Campus of Tokyo
Denki University. The fence size was determined for smallscale
disasters such as landslips.