VISSIM 5.30-05 User Manual

7 Simulation of Pedestrians
[IN-
STALLATION]
[DESIGN
(STAIRWAY)]
These parameters apply to ramps and stairways:
● Ceiling opening: Select the decisive parameter for the definition of the
size and enter the appropriate value:
- headroom (vertical magenta line)
- length (horizontal green line)
● Solid ramp foot: Select the decisive parameter for the definition of the
size and enter the appropriate value:
- headroom (vertical yellow line)
- length (horizontal black line)
● Show solid obstacle (3D): The barrier effect of the solid ramp foot is
visualized. If this option is unchecked, the obstacle still serves as a
barrier, though it is displayed as empty space.
The data visualized by colored lines in the scheme do not take effect on
pedestrian flows using the stairway or ramp. However, this data is regarded
for the space being provided on the two neighboring storeys, since for the
upper level, the size of the cut-out section depends on the ceiling opening
properties and for the lower level, the blocked section depends on the
dimensions of the obstacle. Make sure, that the footer’s headroom is
sufficient, otherwise the pedestrians’ heads seem to go through the ramp.
Thickness > 0 for an area or a ramp will reduce the headroom underneath
the construction element which is displayed in the 3D mode, since the
thickness of the ceiling (or ramp, respectively) is not regarded for the
headroom-based calculation of the length of the ceiling opening (or solid
ramp foot, respectively).
Additionally, these parameters apply to stairs:
For Stairway definition, select the decisive parameter and enter the
appropriate value:
● Total steps: number of steps
● Rise: height of the rise
● Going: step length to next step
7.1.4.6 Multiple Levels (Add-on)
At present, the Multiple Levels add-on can be used for pedestrians only.
354 VISSIM 5.30-05 © PTV AG 2011