2:45 PM - 3:00 PM
[SVC27-05] Utilization of climber dynamics data for disaster prevention at Ontakesan
Keywords:Climber dynamic data, Ontakesan, Volcano disaster prevention
In Japan, there are 111 active volcanoes that can be approached by climbers to the vicinity of the crater. The disaster of Ontakesan in 2014 was a major volcanic disaster with the highest number of deaths and missing people since World War II, in spite of the small scale of the eruption. An experiment was conducted at Ontakesan in 2023, to obtain data on climber movements for the purpose of contributing to advance volcano disaster prevention measures considering climbers.
In the experiment, a total of 844 beacons were distributed to climbers, and the movement of climbers with the beacons was monitored by receivers installed along trails in advance. A total of 21 receivers were installed along Kurosawa-guchi trail and Otaki-guchi trail with the cooperation of the local municipalities, Kiso Town and Otaki Village. A small beacon with BLE communication capability is detected when approaching within approximately 15meters of the receiver and is not detected when further away. By using this function, the arrival time, stay time, and departure time of each beacon-carrying climber to each receiver could be ascertained, and through further analysis, the time required for each climber to climb a mountain, their travel speed, as well as their climbing tendency and spatial distribution and its temporal change could be determined. By providing the analysis results to the local governments, it was found that these experimental results can be used as a reference when considering the prioritization of trail maintenance and the location of public information signs. In opinion exchanges with local government officials through the situation sharing experiment, the usefulness of real-time visualization and sharing of climber information, in times of disaster was raised, and comments were made that the system is expected to be used in normal times.
In this presentation, we will report on the details of the analysis of the data obtained and how it was utilized.
In the experiment, a total of 844 beacons were distributed to climbers, and the movement of climbers with the beacons was monitored by receivers installed along trails in advance. A total of 21 receivers were installed along Kurosawa-guchi trail and Otaki-guchi trail with the cooperation of the local municipalities, Kiso Town and Otaki Village. A small beacon with BLE communication capability is detected when approaching within approximately 15meters of the receiver and is not detected when further away. By using this function, the arrival time, stay time, and departure time of each beacon-carrying climber to each receiver could be ascertained, and through further analysis, the time required for each climber to climb a mountain, their travel speed, as well as their climbing tendency and spatial distribution and its temporal change could be determined. By providing the analysis results to the local governments, it was found that these experimental results can be used as a reference when considering the prioritization of trail maintenance and the location of public information signs. In opinion exchanges with local government officials through the situation sharing experiment, the usefulness of real-time visualization and sharing of climber information, in times of disaster was raised, and comments were made that the system is expected to be used in normal times.
In this presentation, we will report on the details of the analysis of the data obtained and how it was utilized.