VISSIM 5.30-05 User Manual

Building an Abstract Network
of orientations provided in the Orientation column: N, NE, E, SE, S, SW,
W, NW.
This functionality is especially helpful in case of multiple edges leading to
the same neighboring node since VISSIM might have determined an
unrealistic orientation. By default, VISSIM uses the most frequently
appearing orientation in case of numerous edges. In case of just two
edges to the same node VISSIM uses the one that occurs first in the
clock-wise list of orientations (see list above).
The evaluation graph for the computation of the orientations regards only
the nodes which meet the following two requirements:
► For each pair of neighboring nodes, option Node evaluation has to
be checked. If this is not the case for all nodes in the network, the
resulting graph will be incomplete.
► The distance between neighboring nodes may not exceed 500 m. In
case of a longer distance between neighboring nodes we recommend
to create an additional node in between.
The evaluation graph for the computation of the orientations is based on
the current North direction in the network. For your network, you can set
the North direction via VIEW – OPTIONS - [NETWORK] option Display Compass,
cf. section 4.1.1.
12.3.2.3 What the Colors Mean
Standard
Selection
In the unselected state, the color code applies to node polygons as well as
to segment nodes in the network.
The particular color of a node in the network display indicates certain
properties of this node.
Color Meaning in the unselected state
White Neither option Node evaluation nor option Dyn. assignment has
been checked.
Red Option Dyn. assignment has been checked, whereas option
Node evaluation has not.
Green Option Node evaluation has been checked, whereas option
Dyn. assignment has not.
Black Both options Node evaluation / Dyn. assignment have been
checked.
In the selected state, polygon nodes and segment nodes show a different
behavior.
Nodes Display in the selected state
Segment node The segments always appear yellow, regardless of the
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