The following applies for transport systems of the type PuT-Aux:
- They are considered in the timetable-based assignment and also via the menu Graphics > Shortest path search.
- They are convenient for modeling inferior transport supply without timetables. These are for example
- Park & Ride
- Local public transport with dense headway within a network that is otherwise timetable-based
- Taxis
- They are only relevant on links and turns. By defining permissions of PuT-Aux TSys to these objects, the subnetwork which is enabled per PuT-Aux TSys is defined. This information is not relevant for connectors, nodes or stop points.
Alike PuT-Walk TSys, PuT-Aux TSys are permitted for PuT modes. In case of assignments of demand segments of such modes, passengers can use path legs with the PuT-Aux, too, namely those between two nodes that are connected by links for which the PuT-Aux transport system is permitted. These nodes need to be accessed by walk links however, or be directly connected to a zone or stop area.
During the assignment, a change to a PuT-Aux path leg counts as a transfer.
The extended modularized procedure can be used for example, to export and import fares (Opening of the timetable-based assignment: Export/Import of connections).
Pre-calculation of path legs
The set of PuT-Aux TSys permitted in an assignment directly affects the path legs to be calculated because every start node of PuTAux paths represents a potential target of PuT walk links. This is taken into account when pre-calculating the walk links and PuT-Aux paths.
Adjustment of the connection search
Analogous to walk links, a path leg is created for each PuT Aux path. In any case, the trivial PuT-Aux transfers at nodes appear as individual path legs in any case. Path legs are sorted separately by type: PuT-Line, PuT-Walk, and PuT-Aux.
Analogous to the reference to the index of the first walk link path leg for an origin, a reference to the index of the first PuT-Aux path leg is logged.
For path legs with PuT-Aux TSys, too, journey time, number of transfers and the impedance by transport system are clearly defined. In particular the link attributes Imp/km, Imp/FarePoint and Imp/AddVal are available for PuT-Aux TSys.
