Sidewalk Stewards

A Visual Analytics Approach for Interactive Topology Repair of Sidewalk Networks

Interactive topology repair of sidewalk networks

The Sidewalk Stewards interface over Recife: an uncertainty heatmap, parallel coordinates and a gallery of tiles — The interface over Recife: a map with a heatmap of uncertain topology and a street view, parallel coordinates of error types per tile, and a gallery of the tiles to inspect and repair.

Sidewalk Stewards is a visual analytics system that bridges the gap between automated extraction and a deployment-ready pedestrian network. Sidewalk Stewards detects candidate topology errors, supports interactive user-guided correction through coordinated spatial views, and provides real-time quality feedback as edits are applied. We evaluate the system through case studies showing how it can support the creation of reliable pedestrian networks across different cities.