Mapping Local Spatial Knowledge with Pen & Paper

OpenStreetMap Philippines
2024 April, Iloilo City

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Topics

• OpenStreetMap
  • preview editing with RapiD
• Field Papers
  • Using OpenAerialMap & drone imagery
• Sketch Map Tool
• Umap

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Objective

Enable participants to collect local spatial knowledge that can be easily digitized using low-cost technologies.

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• Erwin Olario
• being OSM awesome since 2007 2012
• 🤪 LoCo advocate : OSM-PH
• OFW

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Highlights

• engage stakeholders with participatory mapping approach
• record and visualize local spatial knowledge, perceptions and "stories"
  • on site, offline collection
• no GIS or OSM experience required for end-users
• useful when data is sparse or no baseline data is available
• digitized data can be used for local vulnerability and capacity assessments

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Maps

• here we are (location)
• where to go (places)
• find interests (things)
• how to get there (navigation)

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• what map do you use?
• what can you find in your map?

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OpenStreetMap (OSM)

openstreetmap.org

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OSM is awesome!

• you're probably using it already
• many brands uses OSM behind the hood

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• Facebook, Apple, Grab, Strava, Microsoft, Komoot, Amazon, Instagram, OrganicMaps
• you!

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Why OSM?

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Datasets and attributes available from OSM.

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The ODbL license is generous, and free.

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We have maps.

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The data is available

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Letting people to use it creatively

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Let's go!

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editing OSM on PCs

bit.ly/osmph-rapideditor

RapiD is a fork of the popular iD, web-based OSM editor, with extra features like AI detections

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10 minutes, self-led exploration.

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Save edits?

• OSM data is live data, so we won't save the data you've been playing with.

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Nowhere to know where!

Real-life features on OSM are represented by

• Points (nodes)
• Lines (ways)
• Areas (areas)
• Tags (attributes)

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Pen & Paper Mapping

• Low-cost, low-tech
• Minimal training
• Fresh geodata!

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Data to …

• Identify risk exposure by mapping who and what is most exposed to hazards and other threats and issues facing the community.
• Show the different vulnerabilities, capacities and resources in the community and stimulate discussion.
• Obtain general information for different sectors (livelihoods, health, and shelter, etc).

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• Analyse the links and patterns of risks in the community
• Identify risk factors in the environment outside the immediate community boundaries

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Field Papers

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Hands-on with FieldPapers

fieldpapers.org

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Choosing a background

OpenStreetMap vs Aerial imagery

bit.ly/osmph-workshop-iloilo-drrmo

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Choosing Paper sizes

• ISO A4, A3 - individual, field work
• ISO A2, A1 - participatory mapping activities

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Aerial imagery from Drone

OpenAerialMap.org

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https://tiles.openaerialmap.org/635a00b05f1fd800066121da/0/635a00b05f1fd800066121db/{z}/{x}/{y}

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Copy the TMS from OAM and paste in FP

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Activities

• Divide into groups of 3-4 pax.
• Create an Atlas
• Print Distribute prepared print-out
• Annotate/Role-play
• Upload
• Pretend edit. Do not save.

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Q&A

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Break!

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Call for volunteer, with OSM account

pic4review.pavie.info/#/mission/2721

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Sketch Map Tool (SMT)

sketch-map-tool.heigit.org

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A new alternative to FieldPapers, easy to create, but less options for advanced users (e.g. external tiles)

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Workflow

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Create a Sketch Map

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• Quality Check Report indicates "fitness" of the area for a sketch map. Without basic map data (roads, critical infrasture, landuse), it will be very hard for users to orient themselves with the map.
• Sketch Map Template is the printable map you can use for your field work. It could be an OSM-based, or use a satellite image background.

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Annotation Exercise ("field mapping")

• Distribute SMT print-out
• Divide class into group of 15 pax
• Simulate group discussion, annotate map with coloured pens, notes or stickers.
• Take a photo of marked map and upload to SMT website

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Your upload will produce a digitized version of your marked-up mark ("geodata".)

• Vector - georeferenced , rasterized image (geoTIFF) for further use with GIS software
• Raster - vectorized polygons (GeoJSON) for further use in GIS software, or visualization.

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Umap + GeoJSON for Visualization.

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UMap

umap.openstreetmap.fr/en

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1. Create a new map (no account needed)
2. Import the GeoJSON from above
3. Update basic attributes
4. Share with your community

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u.osmfr.org/m/1048714/

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Marking & Annotation Tips

• Develop and share your marking strategy beforehand
  • What should be mapped?
  • How should it be mapped?
• Use clear markings with intense colours and strong lines
  • Use legends
• Mapping can be done in groups or individually
• Do not mark the globes or the QR code

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FP and SMT are not magic bullets, but they can foster community involvement, speed-up data collection, serve as a bridge into the formal DRR process, and ease usability of gained results.

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• Supports formalization and visualization of local knowledge
• Makes analog spatial data available in digital format
• Facilitates combination with other geodata

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Q&A

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Key Learnings

• How would you like to use the SMT or FP?
• How would it support your work?

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Deck is available here.

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That's it, pancit!

osm.org/wiki/PH