Accidents on expressways are more likely to occur at seismic intensity 7 than at seismic intensity 7. Kyoto University research January 16, 5:25
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A group from Kyoto University summarized the findings that car accidents on highways are more likely to occur when a seismic intensity 5 class earthquake occurs than when a seismic intensity 7 class earthquake occurs. The research group analyzed data on brake operations and other information collected during an earthquake using a drive simulator, and the research group hopes to use this data to develop an accident prevention system.
The results of this research were compiled by a group from the Graduate School of Engineering, Kyoto University.
We asked 36 people to operate the drive simulator and collected data such as brakes and steering operation when a quake similar to an earthquake occurred while driving on a highway at 80 km / h.
According to this analysis, 90% of drivers started to apply sudden braking at the same time as shaking in the case of a large earthquake of seismic intensity 7 class, but in the seismic intensity 5 class, only 60% of drivers applied sudden braking and almost did not decelerate. Some people continued to run.
As a result, the probability of colliding with the front and rear vehicles was twice as high in the seismic intensity 5 class than in the seismic intensity 7 class.
A research group professor Junji Kiyono said, "There was a difference in how I felt shaking, and the response of the brakes fluctuated. It is important to let the drivers take the same action all together to prevent accidents." The group hopes to use the results of the research to inform drivers of the occurrence of the earthquake and to develop systems to prevent accidents.