VISSIM 5.30-05 User Manual

7 Simulation of Pedestrians
7.7.1 Overview: Pedestrians as PT Passengers
The simulation of pedestrians and the simulation of public transport are
connected by special modeling elements. Pedestrians can walk to a platform,
wait until the public transport vehicle arrives and will board the vehicle after
the alighting people have left the train. Alighters will follow the routes which
are given to them as soon as they have left a train or bus.
The scenario can easily be modeled using waiting areas, platform edges and
the number of boarding and alighting people.
PT stops, PT vehicles and their belonging public transport lines are modeled
as before.
► Waiting areas of a stop are the places where pedestrians wait until the
arrival of a vehicle of the line they want to board. To define waiting areas
for a stop, the user has to create a pedestrian area and select Waiting
area for the Public Transport usage option. A waiting area has to be
allocated to one or more stops.
► A platform edge is a pedestrian area that belongs to one or more stops.
Platform edge has to be selected for the Public Transport usage option.
Alighting pedestrians walk to the nearest platform edge they can reach
from their position in the vehicle. If a routing decision has been defined at
the platform edge, the pedestrians continue their way. Otherwise, they
are removed from the network.
It is possible to create a platform edge along a stop automatically.
Therefore, you have to check the Generate platform edge option in the
Edit PT stop window. The two options left and right determine the
position of the platform edge related to the stop. The area attributes are
set automatically, thus changes in the Pedestrian Area window are not
required necessarily.
Default data is created if a pedestrian area is assigned to a PT stop either as
waiting area or as platform edge and no boarding passenger volumes have
been defined for this PT stop.
Those default data is also created for an automatically generated platform
edge.
Due to the default data, each pedestrian arriving at the waiting area in the
time interval 0 – 99999 will board any vehicle of any PT line.
Alighting pedestrians are created according to the data in the PT Stop Data
window.
For each line and each stop event you need to define the percentage of
alighting passengers.
Additionally, you have to select a pedestrian composition for the alighting
passengers in the PT Stop Data window. This composition determines the
types of pedestrians that will be created inside the vehicle.
Moreover, the user can define for each stop on which side the pedestrians
are allowed to board or to alight respectively. You may select either side or
436 VISSIM 5.30-05 © PTV AG 2011