Real-Time Visualization

Real-time visualization renders live data streams—vehicle positions, power grid status, weather, crowds—on maps and charts that update continuously. Key design goals are clarity under motion, performance, and actionable alerts without overload. Techniques include visual aggregation (clustering, heatmaps), progressive rendering, and decimation of unchanged elements. WebSockets or server-sent events push updates; vector tiles and WebGL keep client-side rendering smooth. User controls allow pausing, time-scrubbing, and filtering. Reliability features display data age and last-update times. Accessibility includes color choices, legends, and alternative views for screen readers. Trust is built with provenance and audit logs for critical decisions.