What factor should NOT be included when calculating the excavation time for the lot?

When calculating the excavation time for a lot, it is important to consider various factors that can significantly affect the overall efficiency and duration of the excavation process. Among these factors, swell characteristics of the soil will influence the volume of material that needs to be moved once it is excavated, but it should not directly impact the time taken for the actual excavation itself.

The swell of the soil refers to how much the material expands when it is disturbed. While it affects the amount of material that needs to be handled post-excavation, it does not alter the actual speed at which the equipment can dig the soil. Other critical factors such as the weight of the equipment, weather conditions, and ground hardness are essential to assess since they affect the efficiency of the excavation process.

The weight of the equipment plays a role in determining how well it can compact the soil and its maneuverability. Weather conditions influence the operating environment, potentially affecting safety and equipment performance. Ground hardness is crucial because harder material typically requires more time and effort to excavate compared to softer material.

In summary, swell should not be included in the excavation time calculation because it is a post-excavation consideration rather than a factor that determines how long the excavation process will take.