Research time span:33 months (Ph.D.).Started October 197I.This year supported by Univ.of Edinburgh.The research has been bro-ken down into Space,Spatial Perception--Spatial Behaviour,Nota-tion of this interaction.The space-as-defined-by-activity Nota-tion was originally developed through undergraduate design work, as the conventional tools of Plan-Section-Elevation,then Axono-metrics,Central Perspectives were proven inadequate for the con-ception and communication of complex urban environments based on activity,Movement as its basis.The notation was used by this writer for designing a multipurpose building for his finals.The research remainsfirmly design-orientated,seeking out general pri-nciples.