Resistance is the resistance to travel in the direction
that a link was created, while Reverse Resistance is
the resistance in the opposite direction along a link.
For both types, you can
specify a resistance for any link in the network topology. This
resistance specifies the difficulty in traversing the link. The
default resistance is the length of the link.
AutoCAD Map 3D uses this
resistance when doing a shortest path trace, best route analysis,
or flood trace. For an example of using resistance to show travel
times, see Performing a Flood Trace.
You can also specify
the Resistance of a node in a network
topology, such as setting resistance for a valve in a pipe network,
or a junction in a road network.