Determine the number of arms per junction and
add links. In the junction area, allow links in the
middle of the junction to begin and end. If the
number of lanes changes, pay attention to the
correct connection via connectors.
6. Define the number of lanes per link on the nodes.
7. Define the number of turning lanes in the node.
8. Define the possible turns, lane expansions and lane
reductions at the connectors.