Keep aircraft separated. Click an aircraft to toggle altitude (high/low). Conflicts occur when two planes at the same altitude get too close.
What to do: Click Start, then click on individual aircraft on the radar to toggle their altitude (blue = high, orange = low). Your goal is to keep all aircraft at different altitudes so no two planes at the same level get too close together. Watch the conflict and near-miss counters at the bottom.
Think about: How demanding was it to track all the aircraft simultaneously? This task captures some of the cognitive load faced by real air-traffic controllers — a classic applied example of the limits of divided attention and working memory under time pressure.