During a large-scale excavation project, an operator is loading material into multiple haul trucks. To minimize truck waiting times and maximize overall productivity, which loading strategy is most efficient?

Question: During a large-scale excavation project, an operator is loading material into multiple haul trucks. To minimize truck waiting times and maximize overall productivity, which loading strategy is most efficient?

Answer options: ✅ Employ a 'swing-loading' technique, where the excavator continuously loads trucks positioned on either side

• Load trucks one at a time, allowing each truck to fully depart before the next positions
• Use a smaller bucket to allow for more precise loading of each truck
• Overfill each truck slightly to reduce the number of trips required

Correct answer: Employ a 'swing-loading' technique, where the excavator continuously loads trucks positioned on either side

Explanation: Swing-loading, where the excavator loads trucks alternately positioned on either side, minimizes the excavator's idle time and keeps a continuous work flow, thus maximizing overall productivity and reducing truck waiting times. Loading one by one creates idle time for the excavator, a smaller bucket is less efficient for large volumes, and overfilling is unsafe and illegal.