Transaction throughput over time, sliced by rail_name so you can see which rails are growing or contracting. The line chart is the trend; the bar chart is the period total per type.
Sum of transfer count across the selected period and all transfer types
Average daily transfer count, averaged across days that had any activity (zero-volume days don't surface in the underlying dataset)
Each day's transfer count, stacked by rail_name so rail composition + trend show together
Total transfer count over the selected period, per rail_name