Modeling PT lines

Public transport stop dwell times are either obtained from the dwell time distribution or are calculated on the basis of boarding passenger profiles. They may also be determined via microscopic pedestrian simulation. Before modeling, decide whether and to what extent the passengers in the simulation should be taken into consideration and parameterize the public transport stops accordingly (Calculating the public transport dwell time for PT lines and partial PT routes). In the network model, you can combine public transport stops of these three models with each other. However, the selection per public transport stop applies to all PT lines which operate at this public transport stop (Modeling PT stops). For each public transport stop, you can enter specific PT stop parameters for each PT line and partial PT route (Attributes of PT stops).

A public transport line in Vissim always has a fixed route. In the case that a real PT line should drive on different routes within the Vissim network, then multiple, separate PT lines must be modeled in the Vissim network.

Modeling PT lines may be compared to the modeling of static vehicle routes. However, PT lines do not distribute arriving PT vehicles, but rather place PT vehicles into Vissim at the start section of the PT line. If the link has multiple lanes, Vissim positions the PT vehicle in the right lane or in the first lane where there is a stop and where there are no other vehicles or interaction objects in the lane that are detected.

When defining a PT line on a link in the network editor, Vissim positions the start section at the beginning of the link. The start section cannot be moved.