What is the port handling capacity, direct loading and unloading capacity and can there be throughput, natural tons, operating volume, loading and unloading capacity of the specific calculation examples? Port throughput refers to the reporting period by waterway in and out of the port area and the number of goods after loading and unloading. This indicator can reflect the scale and capacity of the port.

Operating volume refers to the number of cargoes that complete a complete operation process during the reporting period in loading and unloading operations. A complete operation process means: ship ship, ship barge, ship depot, car barge car barge, pipeline ship; car depot. Operation volume can measure the port workers workload is too small. Higher volumes mean higher port costs for the same number of natural tons loaded and unloaded. Operation volume in a way can also reflect the port production organization is scientific.

Loading and unloading natural tons refers to the number of natural tons of cargo loaded and unloaded into and out of the port area during the reporting period. A ton of cargo in and out of the port, through a number of operational processes, can be counted as a number of operations but can only be calculated as a natural ton. Therefore, natural tons more effectively reflect the actual results of port work.