F8-1　A Study on Flashing Light of Personal Mobility

- Focusing on Kansei Evaluation of Blinking Pattern -

抄録

The Personal mobility without power such as bicycle and kick board is used by many people because of its ease. Bicycles are an important means of transportation that accounts for 13% of Japan's share of transportation, but it can not be said that safety is adequate. The total number of traffic accidents in Japan decreased by 30% from 2002 to 2012, while the bicycle to pedestrian accident increased to about 30%. This may be due to carelessness due to a walking smartphone or a change in traffic conditions due to a bicycle boom. In response to this, interest in "bicycle and safety" is rising in Japan. Currently, a method of sounding a horn such as a bell is common for communication between a bicycle and a pedestrian. However, it is forbidden to use other than "when it is unavoidable to prevent danger" by the Road Traffic Law, so it should not be ringed for the purpose of urging pedestrians to perceive themselves, and there are limits to sound communication Conceivable. Therefore, we focused attention on a method to increase cognition from pedestrians by using flashing lights. However, flashing lights currently on sale only repeat flashing on and off, there is no uniformity in flashing specifications. According to the questionnaire conducted, people were seen as negative images such as "gloomy" "scary" against "the impression from the flashing light". By investigating and eliminating the negative factors included in the blinking, it is necessary to study ways to adopt more cognitive communication. The purpose of this research is to investigate a new blinking pattern that can maintain communication with little stress while maintaining recognition of pedestrians and bicycles. As a research method, we examined existing accident prevention goods and grasped and classified the used products. Next, we selected experimental requirements, built a flashing device, measured the time to notice the flashing, and investigated whether there is any difference in awareness. After that, we conducted a verification experiment and analysis, investigated the impression difference received from the blinking light, and trial-produced a blink pattern.