Article
OTREC research examines ways to anonymize location data | NITC
nitc.trec.pdx.edu
Quoted on this wiki
Every place a page here uses this source, in the order the words come in it.
Such data can be of enormous use to planning professionals, but its dissemination must be balanced with the need to keep locations confidential. “To protect this confidentiality, data are often aggregated to a geographic level such as census tracts or transportation analysis zones (TAZs) before being publicly shared.” This limits the utility of the information. Details are lost with data aggregation. For example, walking trips can be affected to a large degree by the built environment. If all pedestrian trips are aggregated up to a larger zone, then questions about how they were affected by the built environment cannot be answered.