Note that the current implementation of the macro imposes some conditions on the network used:
- The transit time functions used on the incoming segments of the transfer node should not depend on the auto times. This is due to the fact that the lines now enter the transfer node no longer through the direct link (on which the auto mode is defined), but through the dummy node
. If the transit times on these segments do depend on the auto times, those times should be copied to a user data item before a transit assignment and the transit time functions should be adjusted accordingly.
- The volume-delay functions used on the incoming auto link of the transfer node should not depend on the volume of the transit vehicles. This is due to the fact that the lines now enter the transfer node no longer through the direct link (on which the auto mode is defined), but through the dummy node . If the volume-delay functions on these links do depend on the transit vehicles, those transit vehicle volumes should be copied to a user data item before a auto assignment and the volume-delay functions should be adjusted accordingly.
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- All lines passing through the transfer node allow alighting at that node. If this is not the case, the alighting flags at the egress node have to be adjusted manually after the macro has terminated.
Once the transit assignment has been performed, the line-to-line transfers are available as
