Allocating standard data or shortest path data to main turns

You can assign new default values to all, all active, or selected main turns as follows, or assign values from shortest paths to them. In addition, you can assign the value t0 with the sum of the shortest path and the value from the turn standards.

Editing all or all active main turns

1. Select the main turns whose values you want to allocate via

the spatial selection (Setting network objects active/passive via the spatial selection) and/or
filter criteria (Using filters to set network objects active or passive).

The selected main turns are active.

2. In the Network window, right-click the Main turns button.

The Main turns shortcut menu opens.

3. Select the Default values entry.

The Set default values for main turns window opens.

4. Select whether you want to allocate default values to all main turns or just the active ones.

5. Select the attributes that you want to overwrite with the standard data.

Element	Description
Type number	Number of the turn type
Capacity PrT	Private transport capacity of the turns
t0 PrT	Private transport turning time in an unloaded network

6. Select one of the following options:

Element	Description
Use default values	The current values of the selected attributes are overwritten by the preset default values for turns. Notes The default values are set under Network > Turn standards, where they can be edited as well (Managing turn standards).
From shortest paths	The values of the selected attributes are overwritten with the values of the shortest path. Notes When a main node is inserted, shortest paths are calculated for each pair of cordon links and each PrT transport system. The transport system set is determined as the cut set of the shortest path within the main node and the transport system sets of the incoming and outgoing link. If there is no shortest path from the incoming to the outgoing link for any transport system, the default of the corresponding main turn is t0=0, capacity=0 and TSys set=empty. If a shortest path is found for at least one transport system, the following attributes are assigned to the main turn: The Capacity of the main turn is the maximum capacity of the transport-specific shortest paths, whereas the Capacity of a shortest path is the minimum of the capacities of all its links and turns. Equally, t0 of the main turn results from the minimum value t0 of the transport-specific shortest paths, whereas the value t0 of a shortest path is the sum of the value t0 of all its links and turns. As for turns, the Type number is set automatically according to the geometry (angle between From Cordon Link and To Cordon Link).

Element

Description

Use default values

The current values of the selected attributes are overwritten by the preset default values for turns.

Notes

The default values are set under Network > Turn standards, where they can be edited as well (Managing turn standards).

From shortest paths

The values of the selected attributes are overwritten with the values of the shortest path.

Notes

When a main node is inserted, shortest paths are calculated for each pair of cordon links and each PrT transport system.

The transport system set is determined as the cut set of the shortest path within the main node and the transport system sets of the incoming and outgoing link. If there is no shortest path from the incoming to the outgoing link for any transport system, the default of the corresponding main turn is t0=0, capacity=0 and TSys set=empty.

If a shortest path is found for at least one transport system, the following attributes are assigned to the main turn:

The Capacity of the main turn is the maximum capacity of the transport-specific shortest paths, whereas the Capacity of a shortest path is the minimum of the capacities of all its links and turns.
Equally, t0 of the main turn results from the minimum value t0 of the transport-specific shortest paths, whereas the value t0 of a shortest path is the sum of the value t0 of all its links and turns.
As for turns, the Type number is set automatically according to the geometry (angle between From Cordon Link and To Cordon Link).

7. Confirm with OK.

The selected attribute data is allocated to the main turns.

Editing marked main turns

1. In the network, mark all main turns whose values you want to edit.

2. Right-click in the network display.

A shortcut menu opens.

3. Select the Default values entry.

The selected attribute data is allocated to the main turns.

Tip: You can also call the function from the shortcut menu of the corresponding list and edit marked objects together.