Attributes of desired speed distributions

Speed distribution attributes

• ►  On the Base data menu, select > Distributions > Speed.

The Speed Distributions list opens.

By default, you can edit the list (Using lists).

Note: In lists, you can use the  Attribute selection icon to show and hide attribute values (Selecting attributes and subattributes for columns of a list).

The list contains the following attributes:

Element	Description
No	Number of Speed distribution
Name	Name of Speed distribution
Lower bound	Minimum Speed
Upper bound	Maximum Speed

By default, the Units currently set under Network settings are used (Selecting network settings for units).

Showing and editing dependent objects as relation

The attribute and attribute values of this base data type are shown in the list on the left, which consists of two coupled lists.

1.  In the list on the left, click the desired entry.

2.  On the list toolbar, in the Relations list, click > Data points.

The list on the right contains attributes and attribute values of base data objects allocated to the base data object selected in the list on the left (Using coupled lists):

• Data points: Individual data point values of speed distribution. For predefined distributions, at least two points are defined by default: Data point 1 for minimum speed and the last data point for maximum speed. You can insert additional data points between these data points. These data points are then displayed as intermediate points in the curve (Editing the graph of a function or distribution).
• x: Desired speed at data point in curve.
• At data point 1: minimum Speed of the selected Speed distribution
• Speed additional data points, if defined for this curve
• At the last data point: maximum Speed of the selected Speed distribution
• FX (f(x)): Value for the probability of the Speed x at the data point
• At data point 1: 0
• If additional data points are defined for the curve: Value for the probability of the Speed x at the data point
• At last data point: 1

The Speed distribution is monotonically increasing. This is why each FX value must be greater than or equal to its preceding value.

3.  Enter the desired data.

The data is allocated.