How do you extract roads from satellite images worldwide?

Road extraction from satellite imagery is crucial for mapping, but existing datasets lack diversity and struggle with complex terrain across regions. Researchers built WorldRoadSeg-360K, a 367K-image benchmark spanning 38 countries, then developed RoadGIE—an interactive editing tool that understands road topology through connectivity-aware prompts (clicks and scribbles) rather than bounding boxes. It maintains structural consistency during iterative refinement with 3.7M parameters and released code.