Defining main nodes and checking the control type

To carry out accident predictions for intersections, make sure the following requirements are met:

  • The individual nodes of each intersection must be grouped into one main node. Otherwise accident prediction is not carried out for the entire intersection, but for each node of the intersection.
  • Each main node must be assigned the appropriate control type via the the control type attribute.

For each main node, carry out the following steps:

1.  For each intersection, group the nodes into one main node.

Note: Further information on main nodes can be found in the description of main nodes (Managing main nodes).

2.  Select the desired main node.

Note: By default, the Safety section is shown in front of the Quick view. To use the Quick view, e.g. in order to check the control type in the next step, click the Safety section title bar, hold down the mouse button, and drag the section to a different position.

3.  Then check the control type.

4.  Edit the entry if desired.