Figure 10
The illustration presents two side-by-side Gantt charts, labeled (a) on the left and (b) on the right, both illustrating job scheduling over time. Each chart has a vertical axis labeled “Job” and a horizontal axis labeled “Time.” A shared legend at the bottom left for both charts indicates that green bars represent “Job 1” and blue bars represent “Job 2.” In chart (a), “Job 1” is represented by two stacked green horizontal rectangular bars, each labeled “2 slash 2,” indicating a “duration or crew” requirement. These start from the origin of the “Time” axis. Immediately following the completion of the “Job 1” bars, a single blue horizontal rectangular bar, labeled “3 slash 3,” extends further along the “Time” axis, representing “Job 2.” Two vertical dashed lines are present to the right: a green one labeled “Due,” and a blue one labeled “Due,” positioned further to the right of the green one. These dashed lines extend from the horizontal axis upward. Chart (b) has a similar structure but shows a different scheduling arrangement. “Job 1” is again represented by a single green horizontal rectangular bar, labeled “2 slash 2,” starting from the origin. Above it, “Job 2” is represented by a blue horizontal rectangular bar, labeled “3 slash 3,” also starting from the origin, but slightly offset in its vertical position relative to the green bar. Following the completion of the first green “Job 1” bar and above the blue bar, a second green horizontal rectangular bar labeled “2 slash 2” for “Job 1” is positioned. Similar to chart (a), two vertical dashed lines, a green one labeled “Due” and a blue one labeled “Due,” are positioned further along the “Time” axis to the right. Here, the right end of the second green bar aligns with the green “Due” line.Illustrative example for different job sequences. Source: Authors’ own work