Analyzing and broadcasting accessibility with OpenStreetMap
summary
LYRASIS-funded work tests LIDAR and phone sensors for accessibility mapping and finds mixed results: indoor LIDAR from an iPad Pro gives ~3 cm scans but fails wheelchair-grade accuracy (anything over 0.5 in is a barrier), magnetic-fingerprint tools (Anyplace and Trakr) yield ~15 cm horizontal and about 1 ft vertical after a fixed-point tie, sidewalk tasking improves by segmenting along street geometry, and rapid tactile maps via touch-mapper.org plus laser cutting produce $2 usable maps in ~15 minutes.
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chapters (11)
- 0:00Introduction to accessibility mapping
- 1:46Community collaboration for mapping
- 3:12Quality control in sidewalk mapping
- 4:38Outdoor wheelchair accessibility findings
- 5:43Challenges of indoor mapping
- 7:05Indoor navigation with magnetic sensors
- 8:07Tactile maps for blind and low vision users
- 9:12Testing apps with blind programmers
- 10:14LiDAR limitations for wheelchair access
- 11:41Future of LiDAR in accessibility
- 12:23Acknowledgments and Q&A
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