You can show the accessibility of PuT-relevant network objects (Fundamentals: PuT isochrones).
There are two possibilities of displaying the accessibility in the network.
- PuT isochrones display the accessibility of each point in the network from one or several marked zones, stop areas, or nodes (Two-dimensional display of attribute values around point objects).
- It is possible to use the classified drawing mode for nodes, main nodes, zones, stops, stop areas, and stop points to display their accessibility from the currently marked network objects (Displaying the accessibility of network object types according to classes).
1. In window Edit graphic parameters, specify the desired settings for isochrones (Displaying isochrones and the accessibility of network objects).
2. On the Graphics menu, click Isochrones.
The Graphics tools (Isochrones) window opens.
3. Select the PuT tab.
4. Specify any further settings you need.
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Element |
Description |
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Click this icon to delete the list of objects and all previously executed isochrones. |
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Network object type |
Here you select the network object type for which you want to display the isochrones. The following types are provided:
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Mode |
Here you can select a PuT mode. |
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Time reference |
Departure time If this option has been selected, you will search for connections that start within the specified time period and end before expiry of the extension period. Arrival time If this option has been selected, you will search for connections that start after the pre-extension time has started and arrive at the destination within the specified period of time. |
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Time interval: from - to |
Time interval for the desired arrival or departure times of the relevant connections. Notes When using a weekly or a daily calendar, you can select a day which is contained in the current calendar. For zones, the access time needs to be taken into account. |
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Arrival extension |
Time following the specified time period within which connections need to reach their destinations. Note The extension time is added to the search interval. |
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Departure extension |
Period of time before the specified time during which connections must start Note The value for the departure extension precedes the search interval. |
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Parameters |
Click this button to specify the settings for the connection search (Parameters of timetable-based assignment). Note In this window you can e.g. specify that only active vehicle journey sections will be taken into account. |
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Generate POIs |
If this option is selected, 2D surfaces are calculated and corresponding POIs are generated for each isochrone calculation for specified travel times. The POIs created in this way can be used in subsequent calculation operations, for example when intersecting with other surface objects or during shape export for further use in an external GIS. Click the Network object type Select the network object type whose isochrone times are to be used. Propagation speed Enter the desired propagation speed. The propagation speed controls how much the attribute value of the network object increases with increasing distance. Maximum propagation radius Optionally enter a maximum propagation radius. The maximum propagation radius is the maximum limit up to which an attribute value may propagate from a network object. POI category Display of the POI category in which the POIs are to be generated. Click the button to open the window in which you can add, edit, and delete categories (Editing a POI category). If necessary, change the category in which the POIs are created. If necessary, delete existing POIs using the corresponding button. Travel times The table contains the set of travel times in minutes for which isochrone surfaces are to be calculated and saved. Use the Copy classification of 2D display Clicking this button transfers the classification settings from the 2D display (Two-dimensional display of attribute values around point objects). Note The POIs generated in this way are provided with user-defined attributes with the values of the isochrone calculation. |
button to make the desired settings.
symbol to insert further travel times. Enter the desired value > 0 in the new row. You can also edit or delete selected rows in the table.5. Depending on the network object type you selected, in the network click the desired zone, stop area, or node.
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Tip: Alternatively, to select a network object, right-click in the network and search for the desired network object in the search window (Finding network objects in the network). |
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Note: If on the toolbar, the |
In the Graphics tools (Isochrones) window, in the Selected network objects section, a new row is displayed for the selected object.
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Note: To edit the network object displayed, in the Selected network objects section, click the network object and in the search window, search for the desired network object (Finding network objects in the network). |
6. Click the Execute symbol 
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The distances between the selected network object and all points in the network are calculated and displayed as isochrones.
7. If needed, click any further zones, stop areas, or nodes.
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Notes: You can undo your selection by clicking a selected object again. You can select network objects of different object types simultaneously. To achieve this, change the entry in the network object type drop-down list in the Isochrones window. |
8. Click the Execute symbol .
The isochrones for the selected network objects are calculated and displayed.
9. To close the Graphics tools (Isochrones) window, from the View menu, choose Tool window > Graphics tools.
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Notes: The isochrones are still displayed after you close the window via View > Tool window > Graphics tools. You can switch off the display by clicking the Reset button. The results of all isochrone searches are then deleted. |
