This bar chart displays work, stop, and idle statuses for four crews, with each crew’s data encoded as a single green bar scaled along a time-based x-axis from November 2016 to February 2017. The visualization uses d3.csv to load data, d3.scaleTime for the horizontal axis, d3.scaleBand for vertical positioning, and d3.scaleOrdinal for potential color mapping, though bars are uniformly styled via CSS. SVG rendering in index.html receives the chart through d3 selections and axes, with the dataset split into three columns per crew.