142 Human Factors of a Global Society
• Avoiding the risks related to security (or the perceived risk of theft or assault).
• Ability to evacuate (rapid access to exits or to a safe area in case of an incident, accident,
disaster, emergency, or crisis (re, ood, suspicious packages, etc.).
Localization
We can distinguish between
• Ego location: location of self in a given environment: room, station, line, network, neigh-
borhood, city, etc., to answer the question, “Where am I?”
• Halo location: knowledge of spaces and objects in their spatial relationships (topology,
morphology, position, and relative dimensions), to answer the question, “What is there
around me?” (in which provision, arrangement, or dimension, with what opportunities for ...