A bar chart displays annual footfall data loaded from a remote CSV via `d3.csv` and rendered with Victory Charts’ `VictoryBar` and `VictoryChart` inside a React component using the `useState` and `useEffect` hooks. The code parses numeric values, trims the dataset to the last 360 rows, and visualizes the time series with a date-picker available in the layout. React and Victory render the chart in the browser, with D3 handling asynchronous data fetching.