Capacities and Utilization in Rail Freight Orders

The following describes how the system determines the capacities and utilization of rail freight orders.

In Customizing you have defined equipment types and groups as well as capacities for your locomotives and railcars. For more information, see Customizing for Transportation Management under Master Data Resources Define Equipment Groups and Equipment Types and see Equipment Groups and Equipment Types.
You have defined vehicle resources and adjusted the capacities where necessary. For more information, see Vehicle Resource.
In Customizing you have defined item and subitem types and assigned these to your freight order types. For more information, see Customizing for Transportation Management under Freight Order Management Freight Order Define Freight Order Types and see Items.

Whether and how the system aggregates capacities depends on how you have created your item hierarchy and, more specifically, your multi-items.

The locomotive is predefined automatically in the rail freight order if you have created the transportation mode Rail in your freight order type.

You then insert your railcars. You have the following options:

Insert a railcar as an individual item
When you enter a resource the system automatically fills the equipment type and group as well as the relevant weights.
Insert a railcar as a multi-item
When you enter the equipment type and group the system automatically fills the relevant weights. You have the following options when you create a multi-item:
- Create with expansion - this means that the individual railcars are displayed as separate subitems
  You can change the equipment type and group of the individual subitems and you can enter a resource.
- Create without expansion - this means that the multi-item represents all railcars and does not have any subitems
  You cannot enter a resource. However, you can expand the multi-item later.

The system aggregates the capacities as follows:

Multi-item with expansion
The capacity is the sum of the capacities of the individual subitems. The equipment type and group displayed for the multi-item are no longer important for the calculation. The capacity displayed for the multi-item is only a subtotal.
Multi-item without expansion
The multi-item behaves like a large railcar (a double freight car, for example). The capacity is the product of the capacity entered in the multi-item and the number of railcars.

The table below shows how the system calculates the individual weights of locomotives and railcars (classic packaging hierarchy).

Resource	Gross Weight	Net Weight	Tare Weight	Maximum Payload Weight
Locomotive	Net weight plus tare weight of locomotive	Net weight of cargo plus net weight of railcar	Tare weight of locomotive	Maximum weight that the locomotive can pull
Railcar	Net weight plus tare weight of railcar	Weight of loaded cargo	Tare weight of railcar	Maximum weight that can be loaded onto the railcar

For more information about quantity totaling in the classic packaging hierarchy, see Quantities and Capacities.

The utilization of the train or locomotive is displayed under Train Capacity:

Maximum utilization in percent
This is the utilization of the locomotive in terms of its trailing load. The system calculates this utilization taking into consideration the maximum trailing load that you have entered manually here.

Note
The maximum trailing load is displayed automatically as the maximum payload weight of the locomotive on the Equipment tab page.

End of the note.
Length utilization in percent
This is the utilization of the locomotive in terms of its length. The system calculates this utilization from the maximum train length that you have entered manually here and from the length of the railcar (Cargo Information).