VISSIM 5.30-05 User Manual

7 Simulation of Pedestrians
Scheme Walkways Stairways Queuing User-defined
Weidmann does not give the way to translate verbalized in numerical limits.
HBS
These level limits are very similar to those of HCM; like rounded values,
when HCM is given in the metric system. The importance of considering
effective width (or area) is pointed out. Additionally a factor is given to
calculate an effective density for counterflow situations. VISSIM calculates
the LOS using the geometric area and does not check for counterflow
situations.
HCM
HCM refers to Fruin as originator of the LOS concept, but the breakpoints
between the levels are set at clearly smaller values.
Pushkarev-Zupan
Pushkarev and Zupan along with Fruin are credited in the HCM as having
done the base work.
Polus
Tanaboriboon-
Guyana
The breakpoint values for this six-level scheme have been derived from
measurements in Bangkok. So, if there is an Asian scheme, it is this one.
This is the only LOS scheme with breakpoint values constantly higher than
the ones of the walkway LOS of Fruin.
Teknomo
In contrast to density-based LOS, this speed-based LOS definition uses the
opposite sequence (starting with the worst LOS) because with increasing
speed the LOS becomes better.
Selection: The Parameters Provided for Aggregate Value Display
Scheme Walkways Stairways Queuing User-defined
Density
Speed
420 VISSIM 5.30-05 © PTV AG 2011