Design Development of the Support Tool to Prevent Secondary Accidents on Highway

Keitaro Sato, Wonseok Yang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)


In Japan, when an accident occurs on a highway, the driver is required to move the vehicle 50 m behind the stopped vehicle and put a warning triangle and a warning flare. However, about 4,700 secondary accidents by following vehicles have occurred annually. In order to clarify the problem of the evacuation procedure, we conducted experiments to measure the working time of the process evacuating outside of the stopped vehicle. The recorded average time was 88.5 s, and only 40% of subjects completed all the steps. After the experiment, in the interview the majority opinion was that “It is difficult to grasp the accurate position of 50 m behind the stopped vehicle”. From examining the findings, this is one of the causes of the secondary accident. Therefore we conducted the other experiment to measure the error between the point expected to walk 50 m and the actual distance. Less than 30% of the subjects could walk within 3 m of the error. From examining the experiments, the drivers who do not know the evacuation procedure and have no experience using the warning triangle and the warning flare need support to accomplish the evacuation procedure in a short time without mistakes. Therefore we designed the smartphone application that is able to support the evacuation procedure. The drivers can use it from just after they get out of the accident vehicle and inform the following vehicle of the existence of the stopping vehicle, to their safety is secured.

Original languageEnglish
Title of host publicationHCI International 2019 - Posters - 21st International Conference, HCII 2019, Proceedings
EditorsConstantine Stephanidis
PublisherSpringer Verlag
Number of pages8
ISBN (Print)9783030235246
Publication statusPublished - 2019 Jan 1
Event21st International Conference on Human-Computer Interaction, HCI International 2019 - Orlando, United States
Duration: 2019 Jul 262019 Jul 31

Publication series

NameCommunications in Computer and Information Science
ISSN (Print)1865-0929


Conference21st International Conference on Human-Computer Interaction, HCI International 2019
Country/TerritoryUnited States


  • Evacuation procedure
  • Secondary accidents on highway
  • Smartphone application

ASJC Scopus subject areas

  • Computer Science(all)
  • Mathematics(all)


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