Japan Geoscience Union Meeting 2015

Presentation information


Symbol M (Multidisciplinary and Interdisciplinary) » M-TT Technology & Techniques

[M-TT42] Mapping and spatial representation in geoscience

Tue. May 26, 2015 6:15 PM - 7:30 PM Convention Hall (2F)

Convener:*Mamoru Koarai(Surving Department, College of Land, Infrastructure, Transport and Tourism), Atsushi Suzuki(Faculty of Geo-environmental Science, Rissho University)

6:15 PM - 7:30 PM

[MTT42-P07] Analysis of the influence from the geometry of roads and other artificial structures to evacuation plans

*Hiroyuki KIMURA1, Daisuke SUGAWARA2, Fumihiko IMAMURA2, Shingo WATANABE1 (1.FUKKEN CO.,LTD., 2.Tohoku University)

Keywords:natural disaster, evacuation area, evacuation route, road structure

In future, the powerful natural external force (e.g. earthquakes, tsunamis, local heavy rain) will occur. The evacuation is important and effective to guard our lives against such natural external force, because the prevention structure may be destroyed by the force.
The local governments offer hazard map and disaster prevention map. The people plan the evacuation behavior and decide the evacuation route. And the validation and the safety of evacuation behaviors are checked by town walks and trainings. But, It is difficult to understand the distance to evacuation place from these maps. It is possible to plan more reasonable evacuation using the information due to such road plane structure and its clarification.
In this research, it is considered to analysis influence of road plane structure to evacuation areas using the distance and the place which the people can reach the evacuation place within one time.
Specifically, we try to examine the reachable places to evacuation site and a direct distance from the evacuation place to the farthest reachable place, and the difference of these at time intervals. If the direct distance is very shorter than evacuation distance, it seems to prevent to increase evacuation because of some physical environments (e.g. roads, railways and rivers). Furthermore, we try to visualize the reachable places to evacuation site at time intervals. It seems to be able to know clearly the complicated road structure and some facilities across the evacuation route using this visualization.