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FOSS4G Meet/Eat Up 2012/09/10
Collaboration Potential between Geo people and Non-geo people The case of Escape Map (逃げ地図)
OSGeo.JP and NIAES
Nobusuke Iwasaki
What is Escape Map (逃げ地図)？
• Escape Map (逃げ地図，Nige-chizu) is a kind of shortest path map.
– It was developed for Tsunami affected area
– Primary version was hand made
– Each color indicate a required time to escape from Tsunami.
2 Escape map?
http://mainichi.jp/feature/news/20120603ddm013100011000c.html
Who developed Escape Map (逃げ地図)？
• Escape Map was developed Tasuya Hatori and his colleagues.
– They are working in Nikken Sekkei LTD, which is one of the biggest architectural design office
– Nikken Sekkei designed Tokyo Sky Tree
3 Escape map?
https://twitter.com/_HATORI_
http://www.nikken.co.jp/ja/skytree/
How to use the Escape Map (逃げ地図)？
• They used Escape Map for a workshop to make rehabilitation plan of Tsunami affected area.
– use for evaluating each plan
• Build new road, escape tower, etc…
4 Escape map?
http://aar.art-it.asia/u/admin_edit1/qLFmOvb4BWKMtGnglo3f
• To develop the escape map by hand is intensive work!
• I tried to develop Escape map using GRASS and OSM data
5 How to develop Escape Map (逃げ地図) using GRASS
Problem…
• Determine tsunami affected area from GSI map
6 How to develop Escape Map (逃げ地図) using GRASS
Flood area
• Import OSM data and develop escape point
7 How to develop Escape Map (逃げ地図) using GRASS
Escape point
• Create buffer and convert road vector to raster
8 How to develop Escape Map (逃げ地図) using GRASS
Convert vector to raster
• Calculate distance to escape point using r.cost
9 How to develop Escape Map (逃げ地図) using GRASS
Calculate distance
• Geo and Non-geo people have to make closer linkage each other. – Geo people has a technique how to
develop map and data.
– Non-geo people has an idea how to use map and data. • not only for rehabilitation plan of Tsunami
affected area, but also another topics.
• It would be good opportunity for OSM and FOSS4G to make a difference in the world!!
10 How to develop Escape Map (逃げ地図) using GRASS
Potential of the collaboration
FOSS4G Meet/Eat Up 2012/09/10
Thank you for your attention!
e-mail: [email protected]
twitter: wata909
