![]() Dry bulk tonnage is calculated by the ICST-based method described in Section 2.2. ![]() ![]() Cargo tonnage does not include the weight of shipping containers themselves, even though movement of empty containers may be a significant portion of a port’s activity.įigure 1 displays tonnage totals for the top 25 tonnage ports, which includes the weight of cargo transported in containers and dry bulk cargo while Figure 2 depicts the dry bulk tonnage, which is a subset of the tonnage totals for the top 25 dry bulk ports. Cargo tonnage includes the weight of dry bulk and liquid bulk cargo, break-bulk cargo, roll-on/roll-off (Ro/Ro) vehicles and industrial equipment, and the contents of shipping containers. 3.1.1 Cargo TonnageĬargo tonnage is the most fundamental measure of port and terminal throughput. BTS will explore methods for capturing the effects of seasonal variations on port throughput and capacity in future editions of this report. The Working Group recommended that BTS focus on annual totals and not on quarterly or monthly totals. It is important to note that the throughput statistics presented in this report are annual totals, which can mask seasonal variations in cargo flows that place recurring stress on available port capacity. The throughput statistics included in this report are (1) cargo tonnage, (2) container TEU, and (3) vessel calls categorized by commodities carried. In this first Annual Report, BTS focused on basic measures of tonnage, TEU, and vessel calls to characterize the throughput of each port. For example, international and domestic demand for cargo handled by the port, competition with other ports, contractual arrangements with carriers, and changes in distant facilities such as expansion of the Panama Canal are among the factors that affect cargo volumes and the number and size of vessels that call. These measures are affected by many variables beyond physical capacity. Port throughput measures reflect the amount of cargo or number of vessels the port handles over time. The measures should be accurate with acceptable data quality standards and should come from trusted sources. The measures should be closely connected to the physical activity of ports, terminals, and port infrastructure and the measures should be understandable to readers who may not be familiar with port or shipping terminology. (e.g., for 2015 data to be included in a 2016 report). The measures should be final and available for the preceding year If not, multiple sources should be documented and reconciled to ensure reasonable consistency. Ideally, the measures should be available from a single source. The measures must be based on a nationally consistent definition and collection method, and be available for all applicable ports. The chosen measures must be readily available for at least the topĢ5 ports to which they apply (e.g., tonnage for all ports, TEU for container ports, vessel calls and sizes for all ports). BTS used the following data criteria to select throughput and capacity indicators for this report: The measures provided in this report show capacity measures for 2015 as well as the throughput achieved in 20, to give an indication of the extent of trade growth and the increasing challenges facing ports. Advisory Council on Transportation Statistics. ![]() National Transportation Knowledge Network.National Transportation Library Main - Library.Vehicle Inventory and Use Survey (VIUS).Transportation Statistics Annual Reports.Local Area Transportation Characteristics (LATCH dataset).Government Transportation Financial Statistics.Statistical Products and Data Main - Statistical 1.Transportation Maps and Geospatial Data. ![]() Introduction to Transportation Statistics. ![]()
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