Territoriality and boundary conflicts in the subway.
D000223:Adaptation, Psychological; D000293:Adolescent; D000328:Adult; D001336:Automobiles; D002648:Child; D003220:Conflict, Psychological; D003441:Crowding; D005010:Ethology; D005133:Eye Movements; D005260:Female; D006126:Group Processes; D006801:Humans; D007398:Interpersonal Relations; D008297:Male; D009519:New York City; D011156:Population Density; D011187:Posture; D012929:Psychological Distance; D011639:Public Opinion; D012919:Social Behavior; D012923:Social Class; D012927:Social Control, Informal; D013731:Territoriality; D014195:Travel