About the JOC Port Productivity Rankings
The rankings included in this initial rollout of JOC Port Productivity data are based on seven rigidly defined elements provided by 17 participating carriers. Other data points, such as operating time, crane density, total time a ship is in port and crane productivity, will be added later.
The data points this report is based on are vessel name, terminal name, port city, port country, berth arrival, berth departure and number of moves (including lift-ons, lift-offs and re-stows). Berth arrival and departure refer to “lines down” and “lines up” — that is, the actual arrival and departure of the ship at the berth. The calculation of moves per hour between these two times is referred to as unadjusted gross berth productivity.
It is the same calculation for all 400 terminals and 600 ports the JOC evaluates, allowing for a basic apples-to-apples comparison globally. The data enters a data warehouse in standardized format so that it’s accessible for reports, rankings, analysis and other uses.
Interaction with global carriers resulted in data whose definitions are consistent across all carriers. Rankings were determined by analyzing more than 100,000 port calls in 2012.
Productivity is defined as the average of the gross moves per hour for each call recorded last year.
Gross moves per hour for a single vessel call is defined as the total container moves (onload, offload and repositioning) divided by the number of hours for which the vessel is at berth.