11-08-2012, 01:14 PM
Micro-PedSim User Manual
UserManual.pdf (Size: 453.9 KB / Downloads: 27)
INTRODUCTION
Welcome to Micro-PedSim, an innovative research tool to study the movement behavior
of pedestrians through microscopic pedestrian traffic simulation. Micro-PedSim gives
you the power to visualize and simulate pedestrian interaction and behavior
microscopically. It also presents links between microscopic level of individual behaviors
of pedestrians and macroscopic level of pedestrians’ traffic analysis.
Pedestrians can be generated either by manually, through text file, or automatically, in
either randomly distributed or systematic way. Experiments can be constructed through
variation of parameters specification. The simulation can also be calibrated in term of
time and space. The performance output of the simulation can be shown in either real
time simulation or can be reported as files for further analysis.
This manual is an introduction to the basic features of Micro-PedSim. It is not intended to
be a comprehensive discussion on the entire tools and the models. Readers should refer to
papers and dissertation of the author and other researchers in the discussion group for
more complete information.
The latest version of Micro-PedSim is still under development. Your valuable input and
support would be welcome. Please report any bugs or error to the author.
RUN THE SIMULATION
After you set up Micro-PedSim, you
can run it from the start Menu of
Windows. The starting window is
shown as the figure on the right. The
default starting forms are Pedestrian
Trap and Simulation Performance
forms.
You can start to run the simulation
simply by pressing a function key F5
or using menu Run-Start. If you do not
specify any parameter configuration,
the simulation will run with its default
values.
CREATE PEDESTRIAN DATA FROM TEXT FILE
Once you have generated pedestrian data manually, you may also want to create your
pedestrian data using any text editor such as NotePad or WordPad. The location of the
pedestrian data is in your Micro-PedSim directory, a file name “PedData.pim”.
The record of each pedestrian is in one row in the text file. The data is separated by
commas consecutively consist of
1. Pedestrian number
2. Initial position (x, y) in meter relative to the pedestrian trap
3. Target position (X,Y) in meter relative to the pedestrian trap
4. Initial velocity (Vx,Vy) in meter/second
5. Maximum speed in meter/second
6. Maximum acceleration in meter/second square.
Pedestrian Trap
The facility (i.e. walkway) is modeled as a two-dimensional space where the pedestrian is
moving around. A part of pedestrian facility that the pedestrians can be seen is called a
pedestrian trap. It is the boundary of your study area.
Each pedestrian has origin and destination places. The origin and the destination of the
pedestrian are always within the pedestrian trap, when a pedestrian is generated by
manual operation. When a pedestrian is generated automatically by the program, the
pedestrian is always generated and attracted in a pedestrian generator. A pedestrian
generator is a rectangular area located outside the pedestrian trap where the pedestrians
appear in some point of time. The origin point of the pedestrian is inside a pedestrian
generator while the destination point is in another pedestrian generator. The location of
the origin point inside the pedestrian generator is determined using uniform random
distribution. When a pedestrian reaches the location near the destination point, the
pedestrian will disappear.