Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- Passive Accessibility Sensing(also: Automatic Barrier Detection, Breadcrumb Sensing)
- A data collection approach that uses smartphone sensors (GPS, accelerometers, gyroscopes) to automatically detect potential accessibility barriers in the physical environment without requiring active user input. By analysing patterns in pedestrian movement data — such as…
- Physical Crowdsourcing(also: Spatial Crowdsourcing, Physical World Crowdsourcing)
- A form of crowdsourcing in which tasks require participants to perform actions in the physical world rather than completing digital tasks online. In an accessibility context, physical crowdsourcing has been applied to installing and maintaining navigation infrastructure such as…
- Project Sidewalk
- An open-source web-based crowdsourcing tool developed at the University of Washington that enables volunteers to virtually audit sidewalk accessibility using Google Street View panoramas. Contributors label four types of accessibility features and problems: curb ramps, missing…
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