FlexTerm automatically collects dozens of statistics to assist you in analyzing your container terminal model. The Statistics window can be accessed through the [Container Terminal menu](Container_Terminal_Menu.html) on the main toolbar. Statistics Window The statistics window contains a variable number of tabs depending on which [planners](Planners_Overview.html)you have used in constructing your model. The "Export" tab is always available and provides a mechanism for exporting the current statistics to an Excel or .csv file. [Yard](Yard_Planner_Overview.html)statistics tabs include: yard, blocks, and resources. The yard tabs are always available, but the "Enable Collection" boxes must be checked on each screen to start the reporting. [Berth](Berth_Planner_Overview.html) statistics tabs include: berth, berth status, and cranes. [Gate](Gate_Planner_Overview.html) statistics tabs include: gate and gate throughput. All statistics are collected in a "rolling window" manner. The previous several minutes are recorded and reported to the screen. When the export function is used, only the current snapshot is reported. As the statistics "roll off" the screen, the data is no longer available. A full history is not kept and is not currently available. Also, you need to check the boxes at the top to enable statistics collection and press Apply before running your model in order for the statistics to be collected.  Yard The Yard tab shows the statistics for the entire yard or different types of containers as defined by the user. By default, Yard statistics are shown. To show statistics for container types, choose the right container type as shown in the drop down menu. The top half of the tab shows the inventory statistics, e.g., how many containers are currently in the yard and聽the average and maximum number of containers. The bottom half of the tab shows the dwell time statistics of containers. The dwell time is counted from when the container enters the yard from the other interface (either ship, gate, rail, or none) to when it exits the yard to some other interface. This means that the relocation (or housekeeping) operation will not change the recorded dwell time as the container is considered still in the yard during the process. Containers entering the yard can happen at two occasions: 1) when a container is placed immediately in the yard, usually at the start of the simulation when the model is being prepopulated, and 2) when a container is dropped into its first block by some stacking resource for example RTGs and Top-Loaders. Containers exiting from the yard can happen at various times. For ship loads, this happens when the quay crane drops the container into the ship. For the gate, it's when a pick up truck leaves through the gate sink. For rail, this happens when the train exits a track. The throughput for the Yard here counts once for each container entering and exiting the yard. Therefore, the yard throughput reported here will not match the terminal throughput if any ship-to-ship transshipment operation is involved, since transshipment containers will be counted twice (one entering the yard and the other exiting the yard) in the terminal throughput number. To get the terminal throughput value, one can refer to the statistics in the Cranes tab for Ship-to-Shore cranes. The content statistics can be recorded in either containers or in TEUs by selecting the appropriate option at the top of the tab. For any container which is not 20ft, FlexTerm considers it having 2 TEUs. There are some parameters a user can define here. The History Size Limit defines the maximum number of points that will be tracked in the content graph. The Lower Bound, Upper Bound, and Divisions defines the size of each bar in the Dwell Time graph. The figure below shows a screen capture of the Yard tab during statistics collection.  Blocks The Blocks tab records content and dwell time statistics on each of the individual blocks. A container entry happens when the container enters the block, and an exit happens when the container exits the block. Therefore, if a container is relocated from one block to another block, this container will be counted in the throughput of both blocks. Similarly, the dwell times for a container in a block are calculated every time the container enters and exits the block. The figure below shows a screen capture of the Blocks tab during statistics collection.  Resources The Resources tab records statistics associated with stacking resources such as GantryCranes, TopLoaders, and Resource Groups that serve trucks. These are not statistics of the containers moved by the resource. Instead, they are statistics about the trucks served by the resource. The top shows statistics for the Busy %, Throughput, Gross Moves per Hour, and Net Moves per Hour. The total time and the number of trucks served (truck throughput) are used to calculate gross moves per hour. The busy time and truck throughput are used to calculate net moves per hour. The resources tab also records the truck wait queues for each resource. For a RTG, the truck wait queue entry happens when a truck arrives at a block. The exit happens when the RTG starts the task to serve the truck. Digging operations do not directly change the throughput, content, or staytime statistics for the resource. They聽indirectly affect the overall truck moves per hour because of the extra time taken to perform them. The figure below shows a screenshot of the Resources tab during statistics collection.  Berth The Berth tab records statistics associated with berth usage. First, it calculates average berth occupancy, which is the total time weighted occupancy in length of all ships that visit the terminal. This value is updated when each ship exits the berth. The formula for this value is: TimeWeightedOccupancy(Ship) = (Length(Ship) + Beam(Ship)) \* (ExitTime(Ship) - EntryTime(Ship)) The Beam in the above formula represents the gap distance between two adjacent ships at the berth. Once this is tracked, average berth occupancy can be calculated as: AverageOccupancy = Sum1-nrShips(TimeWeightedOccupancy(Ship)) / TotalSimulationTime Subsequently, the Percent of Berth Capacity is calculated as: PercentCapacity = 100 \* AverageOccupancy / TotalBerthLength Second, the Berth tab tracks the at-sea queue of ships waiting to be berthed with a virtual container. Entry to this queue happens when the ship arrives at the terminal. Exit happens when the ship is assigned a spot at the berth and starts its entry. When the ship arrives, if the scheduled ship berth location is occupied by some other ship, it will wait in a ship queue. If any physical length of the ship will touch the other ship, according to the ship's berth location assigned in Berth Planner, the ship berth location is considered聽occupied. In the figure below, the top chart shows the content statistics of the ship queue and the bottom chart shows the waiting time statistics.  Berth Status The Berth Status tab displays the status of each hatch on vessels currently serviced by the cranes. The figure below shows a screen shot of the Berth Status tab showing the vessel Service1\_14's Hatch1 worked by Crane 1. There are two values that can be changed to adjust the text size and the gap between the vessels drawn. By clicking on the arrow buttons to change these values, a user will be able to view the texts in this window without difficulties.  Cranes The Cranes tab shows the statistics of ship-to-shore cranes, including the states percentage, number of moves, and the productivities. It has聽Radio buttons at the top. By default, the statistics for individual cranes is displayed, as shown in the figure below.  The statistics for individual cranes are as follows: - %Working: the percent of time that the crane is productive, meaning actively moving containers. - %Waiting: the percent of time that the crane is waiting for horizontal transports or moving to hatches. - Throughput: the number of containers that the crane has moved. - Gross Move/Hour: the gross productivity, which is equal to the throughput divided by the total time, excluding any idle time. - Net Moves/Hour: the net productivity, which is equal to the throughput divided by the working time. If a user clicks on All Crane States, the aggregated state statistics for all cranes will be displayed, as shown in the figure below. This is the average percentage of time spent on each state for all cranes. The states tracked by FlexTerm include idle, productive, moving to hatch, waiting during discharge, and waiting during loading.  Gate The Gate tab reports statistics collected for the entire gate processes or some part of it. Depending on what the user has selected in the drop-down list, statistics for the following processes will be reported: - Entire gate process from exit of Gate Planner to entry of Gate Sink. - Internal yard process from exit of GateToYard to entry of YardToGate. - Gate entry process from exit of Gate Planner to GateToYard. - Gate exit process from exit of YardToGate to Gate Sink. Statistics include the number of trucks and truck turn times in each process. The figure below shows a screenshot of the Gate tab during statistics collection.  Export The Export tab allows a user to export the statistics collected to an Excel or .csv file, as shown in the figure below.