In the Read network data additionally window, select the data tables you want to read into the existing network. Here you can also specify how you want Visum to deal with conflicts.
1. Make sure that the Read network data additionally window is open.
2. Select the data tables you want to read into your current network.
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Element |
Description |
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The table is added to the existing network data. |
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The table is not read into the existing network. |
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Network objects (table) |
This column lists the data tables you can read into your network. Depending on whether the option Determine existing tables in advance is activated, this list either contains all tables available or only those saved to the network file. Note When saving network files, the definitions and the groups of definitions of the user-defined attributes that are exported are automatically saved in the network file. This allows you to read in only parts of the 'User-defined attributes' table during additive network reading. |
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Check all |
Via this button, you may check all tables. |
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Uncheck all |
Via this button, you may uncheck all tables. |
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Edit |
Use this button to specify the settings for conflict avoidance and conflict handling for several tables at the same time. To do so, highlight the tables. Then click Edit (Specifying settings for conflict avoidance and conflict handling). |
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Frequent cases |
Click this button to select additional data tables (required to describe specific network objects) together with preset options for conflict avoidance and handling (Frequent cases:reading in frequently required data tables). |
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Conflict avoidance |
(Specifying settings for conflict avoidance and conflict handling). |
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Conflict handling |
(Specifying settings for conflict avoidance and conflict handling) |
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Save |
Click Save to save your settings, so you can use them again later on. The settings specified here are saved to a *.arnp file and can be quickly read in again when required. |
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Open |
Click Open to open the settings saved as a *.arnp file. |
Frequent cases:reading in frequently required data tables
Data required to describe an object of a particular network object type is stored in one or multiple tables. All link object data, e.g., is listed in the Links table. Links with an edited shape, additionally save data to the Link polygons.
To make sure you read in all tables and attributes required (so-called use case), you can select a predefined set of the tables and attributes you wish to read in, including the appropriate settings for conflict avoidance and handling.
1. Make sure the Read network data additionally window is open (Reading network data additively).
2. Click the Frequent cases button.
The Use cases for additive network reading window opens.
3. Make the desired changes.
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Element |
Description |
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Read polygons |
If the option is selected, all tables containing polygon-related data will be selected and you can specify whether the tables of the associated network object types (zones, main zones, main nodes, territories, POIs, restricted traffic areas) should also be read in. |
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Read timetable |
Activate this option to select all tables containing timetable-based data and specify how you want Visum deal to with vehicle journeys that have the same number. Retain all existing vehicle journeys Existing vehicle journeys are not changed, while additional, new vehicle journeys are read in. Replace existing vehicle journeys if number is identical If an existing vehicle journey has more sections than the read in vehicle journey, the existing sections are replaced with the new, read in ones. The other sections remain unchanged. Note These two options are only available if the read in data contains vehicle journeys. |
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Read blocks |
If this option has been selected, the line block tables and corresponding data is selected for reading plus the data on valid days, calendar period and holidays. Note Line blocks refer to valid days and cannot be read from file without this data. |
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Read main nodes |
Activate this option to select main nodes with polygons, node allocations and main turns. |
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Read tables for graphics & presentation |
If this option is selected, the tables for graphics and presentation, such as info boards and storyboard actions, are selected. |
4. Confirm with OK.
The selected tables are read in according to the predefined settings. You can now specify the conflict handling settings.
