1. In the File menu, select the Import > Intersection data entry.
The Import of intersection data window opens.
2. Select the Basic settings tab.
3. Make the desired settings:
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Element |
Description |
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Import from file |
You can either select an intersection data intermediate format file *.zip directly or navigate to a directory containing the desired import files. The ZIP file contains the files Detectors.csv, Intersections.csv, Legs.csv, Phases.csv, Signalgroups.csv and Streets.csv (Notes on the imported intersection data). |
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Import only for active nodes/main nodes |
If this option is selected, passive nodes/main nodes including their geometries are not changed. If required, set the desired nodes/main nodes active (Using filters to set network objects active or passive). Note The import overwrites all existing geometry data at the allocated nodes/main nodes. |
4. Select the Transfer to target network tab.
5. Make the desired changes.
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Element |
Description |
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Allocation to nodes and legs |
In this section, you make settings for mapping to the target network using various criteria. Use column 'Intersection' for allocation to nodes If this option is selected, the data of the column 'Intersection' of the file Legs.csv is compared with the set comparison attribute. Comparison attribute for nodes/main nodes Use the search fields to select a node attribute and a main node attribute to be used as comparison attributes during import. If the Mandatory option is selected, data is only imported if the value of the set comparison attribute matches or if the value is empty. When you select Not mandatory, not only the comparison attribute but also other criteria determine the allocation to nodes in the target network. Use co-ordinates for the allocation to nodes If this option is selected, the columns 'Intersection_X' and 'Intersection_Y' of the Intersections.csv file are evaluated for the allocation and compared with the coordinates of the nodes in the network. Co-ordinate system in the target network Displays the co-ordinate system currently set in the network. Co-ordinate system of the intersection data Here you can set the co-ordinate system of the imported intersection data. If no co-ordinate system is selected, the co-ordinates are adopted unchanged. Maximum deviation of co-ordinates Enter the maximum deviation in the desired unit. If a point is further away than the maximum deviation, it is not allocated. |
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Weights |
In this section, you can weight criteria for the selection of target nodes and arms. Enter a high value to weight a criterion more strongly. Match with comparison attribute Specify a weight for the match between the data in the 'Intersection' column and the set comparison attribute. Note The weight is only available if the option Use column 'Intersection' for allocation to nodes is selected. Co-ordinates Specifies a weight for comparing the coordinate of the Visum node with the position of the 'Intersection'. Note The weight is only available if the option Use co-ordinates for the allocation to nodes is selected. Match of 'NextIntersection' Specify a weight for the match the allocated 'Intersection' of the To-node of the link and the 'NextIntersection' at the leg. Name of the links Specify a weight for the match between the name of the Visum link and the imported 'StreetName'. Angle Specify a weight for the comparison of the angle of the first link segment of the Visum link with the angle of the leg (0 ==north). Link open Indication of a weight for the fact that a link is Visum open in. A value of 0 means that the closure of a link does not play a role in the allocation. If the value is greater than 0, a closure is taken into account. The greater the value, the more "weight" the closure has, i.e. the less likely it is that the closed link will be allocated. |
6. Select the Post-processing tab.
7. Make the desired changes.
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Element |
Description |
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Handling of main nodes |
Creating a main node If several nodes are allocated to an intersection and all of these nodes are not located in a main node, you can create a main node to which these nodes are allocated. The geometries are transferred to the new main node. |
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Handling of links |
When importing, all legs are mapped simultaneously to pairs of From-nodes and links. Some links cannot be assigned a leg. These links may be closed: Close unassigned links
Some legs cannot be assigned to a link in the network. For these legs you can insert links: Create missing links
Link type of newly created links Selection of a link type for the newly inserted links Notes A link can have more or less lanes than an imported leg. If it has less than the leg, the number of lanes is not changed. Pockets are only created within the node geometry. If it has more pockets, the number of lanes on the link is reduced if possible. The specified turns are used to create useful lane turns. |
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Handling of signal groups |
Signal groups that are not allocated to a stage in the intermediate format are either not imported at all, allocated to an additionally inserted stage, or allocated to all stages of the signal controller, depending on the setting. Select the desired setting: Signal groups that are not referenced by any stage:
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If this option is selected, the links that could not be assigned are closed in the target network. 
If the option is not selected, these links are not changed during import.8. Confirm with OK.
The data is imported.
