In order to realize accessible environments for people with impaired vision ， we must first establish the informa − tion system for their ow 皿 wayfilldiIlg ． This paper deals with the cognitive basis for the system and specifies the e】 ements of information for their successfu 】navigation ． 【 n ourexperiment ， 4groups of sublects with impaired vision (blind ／ partial vision ， ear 】 y − onseV 】 ate − onse り as well as llomla1 】 y sighted subjects are asked to explain the entire sequence of their everyday routes ． From the comparison of the route descriptions by the 5 groups， spatial schemata of each group are specified ． We conclude 11 schemata should be the fundamental elements of information for the future navigation system ． Keywords： people with impaired vision ， spatial cognitiOn ， wayfinding ，

argument of this paper lies on the differentiation between the two aspects of architectural space ： that as geometrically represented entity and that as cognitive entity in our mind ． An experimental anaiysis here showed that several different floor plans can be drawn from sing ］ e cognitive description of real architectural space written in ． an essay ． Further ana ｝ ysis on 70 plans drawn by the subjects in the experiment showed that there underlies a certain sort of strue − tured " orientation system " for each drawing ， which is constructed from the percieved ' ' directions " of verious parts ． Based on this result ， the authors tried to reinterpret a series of previous con ・ tributions to cognitive map studies and to highlight a cognitive aspect of arehitectural drawings ． KeyweiTts：architectural ptanning， drawing ， ノ

No abstract

No abstract

This study aims