火山ハザードマップの読み取りに対するドリルマップ提示の効果

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タイトル別名
  • Improvements in the Interpretation of Volcanic Hazard Maps by Presentation of Drill Maps
  • カザン ハザード マップ ノ ヨミトリ ニ タイスル ドリル マップ テイジ ノ コウカ

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From two experiments, effect of drill map presentation for reading task of hazard map was examined. Two experiments were conducted to determine whether providing specialized projected volcanic activity maps (drill maps) resulted in improved interpretation of publicly available volcanic hazard maps.<BR>In the first experiment, 113 junior high school students and 33 university students were required to formulate a plan of action in the event of a volcanic activity alert working in pairs. This task was carried out by two groups of participants: an experimental group and a control group. For the experimental group, a drill map showing projected lava flows from three different volcanic craters was presented before the task. The participants also filled out a questionnaire regarding their level of knowledge about volcanic hazards and their impressions about the task. Although no difference in performance was discernable in relation to the questionnaire responses, the general quality of plans produced by the experimental group was better than the control group.<BR>In the second experiment the task, carried outindividually, was to evaluate the urgency to evacuate at six different locations shown on a hazard map under three different hypothetical situations: 1) a volcanic activity advisory, 2) volcanic activity alert with an assumed crater location, and 3) volcanic activity alert with a different assumed crater location. Forty-two university students were randomly assigned to either the control group or the experimental group. The experimental group participants were presented with a drill map and given an explanation of the drill map. The same task was also given to ten experts on volcanic activity. The evaluation of the threat was significantly different a one location (location E) between situation 2 and 3 in the control group while at three locations (A, C, & D) in the experimental group and at two locations (location A & D) in the expert group. Also, a comparison between the three groups showed that the evaluations of the experimental group were similar to those of the experts. This indicates that presentation of drill maps enables adults with no special knowledge about hazard maps to evaluate the urgency of the threat due to volcanic activities more accurately from hazard maps.

収録刊行物

  • 地図

    地図 45 (4), 1-11, 2007

    日本地図学会

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