Techniques for observing the flow of people are
creating new means for observing the dynamics between people
and the environments they pass through. This ubiquitous connectivity
can be observed and interpreted in real-time, through
mobile device activity patterns. Recent research into urban
analysis through the use of mobile device usage statistics has
presented a need for the collection of this data independently
from mobile network operators. In this paper we demonstrate
that by extracting cumulative received signal strength indication
(RSSI) for overall mobile device transmissions, such information
can be obtained independently from network operators. We
present preliminary results and suggest future applications for
which this collection method may be used