What is the meaning of Load_factor?

The acceleration experienced by an aircraft along a given axis at a particular instant in time.

The percentage of a transportation system's maximum passenger capacity that is actually used.

The mean load over a given time period divided by the peak load occurring during the same time period, providing a measure of how efficiently an electric system's capacity is being used.

The proportion of the buckets in a hash table which contain entries.

Source: wiktionary.org