- 日本建築学会環境系論文集 (ISSN:13480685)
- vol.84, no.759, pp.479-486, 2019 (Released:2019-05-30)
In this study, we classified 16 kinds of arrows which are frequently found at the station as "straight arrows" and "polygonal arrows". Then we conducted a fundamental experiment using arrows as the sole experiment elements of the space. In this experiment, subjects made a direction judgment and wrote a progress route intuitively. In this way, we investigated the factors of causes that made people get lost at the station. The results we got from the experiment are summarized below. 1) As for all the 8 types of "straight arrows", subjects are apt to judge the direction as a plan indication rather than an elevation one. 2) The downward "straight arrows" may cause misunderstandings in the direction judgment. 3) In case of "straight arrows", except of rightward and leftward arrows, "It is difficult to do the judgment between the plan and the elevation indications." became the most important reason why the subjects got lost in the direction judgment. 4) Based on the experiment of "polygonal arrows", we found that some upward arrows worked particularly better indicating the direction and progressing the route. Also, subjects can easily understand these signs. 5) The downward "polygonal arrows" may cause misunderstandings in the direction judgment. 6) As for all of these 8 types of "polygonal arrows", "It is difficult to know the distance to the turning point." became the most important reason why the subjects get lost in the direction judgment. 7) In some cases of "polygonal arrows", the users may interpret them as elevation indications which the railway company does not expect. 8) It is possible that the U-turn arrows of "backward progress" indications are not working properly. In both of the "straight arrows" and the "polygonal arrows", the force of indications of the downward arrows is weaker than the upward ones. And the downward arrows are difficult to understand. It is necessary to investigate the causes in detail in the future. In addition, as for the "straight arrows", it was obvious that the users may confuse the direction of plan indications with the elevation ones. This became a factor which made people get lost at the station. According to "The Ecological Approach To Visual Perception", we think that the force of the indication will be increased by incorporating the linear perspective and the texture gradient in the signboard. However, this idea needs to be examined by more experiments in the future. Otherwise, when applying to the real situation of the space, there are more factors other than the arrow signs in the view range of the direction judgment, so we need to consider this influence multifaceted.