Day2-1500-OpenStreetMapデータを用いた触地図自動作成システムの開発 ―縮尺に応じた表示内容変更機能の実装―

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Development of a Tactile Map Automated Creation System Using OpenStreetMap Data *1 *1 *2 *1 Graduate School of Science and Technology University of Niigata *2 Faculty of Engineering, University of Niigata Implementation of a Contents Change Function According to the Scale ○Chiharu BABA ○Toshimitsu YAMAGUCHI ○Tetsuya WATANABE 1

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Importance of maps • Know unfamiliar places • Know uncertain places • Recall the routes • etc. 2 The same roles apply to blind persons OSM of Tsurugajo Castle

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What is tactile map Tactile maps support blind people • Orientation • Navigation 3

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When using swell paper Swell paper Need monochrome drawings of maps 4

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How monochrome image is created Step 1. Download a map image Step 2. Trace roads in black (with drawing software) Step 3. Put tactile patterns and symbols 5

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Problems in making tactile maps 6 Takes much time and effort Needs technical knowledge Need for tactile map automated creation system

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Tactile Map Automated Creation System (TMACS) for OpenStreetMap 7

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System overview System category: Web application How to use: 1. Search for a place by address 2. Move and zoom the map 8 System top page

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Top page OSM map object Tactile map image Setting panel 9 Settings Location Base map Opacity of the base map Search OFF

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System block diagram Top page (HTML) JavaScript Mapfile ① MapServer ③ Web API Map data (OSM data) ② Sever Client Google Maps API (Geocording) OpenLayers (Display Map) OpenStreetMap (Map Object) 10

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Conversion of OSM data Convert OSM data to GIS database by osm2pgsql 11 Download site DB OSM file (XML format) osm2pgsql

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Characteristics of the system 1. Maps can contain information useful for blind people 2. Wide area images are readable by touch 12

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Characteristics 1 Maps can contain information useful for blind people 13 By using OSM data

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Information useful for blind pedestrians • Tactile paving • Obstruction • Signal with sound • Change of the sidewalk surface 14 OpenStreetMap General map data

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Merits of using OSM data 1. Arbitrary information can be registered － such as tactile pavement 2. Covers the globe 3. Free 15

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Map features Key Value Tactile pavement tactile_ paving yes Obstructions barrier block bollard cycle_barrier Data useful for blind people 16

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Characteristics 2 Wide area images are readable by touch 17

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Wide area images 18 Select roads to display according to the scale A gap of at least 3 mm between the roads is necessary Too many objects

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Tactile symbols 19 Type of symbols Objects Images Line Road Huge Large Normal Small Road with tactile paving Railway River Area Water area Station Point Traffic signals Obstacle

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Select roads to display Road type 1/2500 1/5000 1/10000 Huge ○ ○ ○ Large ○ ○ ○ Normal ○ ○ ― Small ○ ― ― ※ Other objects are displayed in all scales 20

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Select roads to display Road type 1/2500 1/5000 1/10000 Huge ○ ○ ○ Large ○ ○ ○ Normal ○ ○ ― Small ○ ― ― ※ Other objects are displayed in all scales 21

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Select roads to display Road type 1/2500 1/5000 1/10000 Huge ○ ○ ○ Large ○ ○ ○ Normal ○ ○ ― Small ○ ― ― ※ Other objects are displayed in all scales 22

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How to use the system 23

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How to use the system 25

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Tactile map image 1 Station Rail Water area Signal Road 26

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Tactile map image 2 Tactile paving Obstruction 27

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Future work 28

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Add more information on the tactile map Less key:tactile_paving and key:barrier is registered 29 More data useful for blind people

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Add entrance symbols on the tactile map 30 More key:entrance! Blind people hardly find an entrance ? ? ? ?

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Classify roads by width MAPPLE 10000 OSM data New system Old system 2mm 3mm 31 Add width data at roads

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Create a map wherever user needs More object data at all area evenly Rural area have only poor data OSM Google Map