A grouped bar chart visualizes stock movement data, showing the duration of activities across different routes (e.g., "Elevador," "SD-10") over time. Each bar’s length represents a duration value, with groups positioned by timestamp and route category. The visualization uses D3 v5 with SVG rendering, employing `scalePoint` for the time axis, `scaleBand` for route grouping, and `scaleLinear` for bar lengths. Data is loaded from a JSON file, and axes are customized using `axisBottom` and `axisLeft`, with rotated time labels for readability.