Modeling a Grid of Traffic Lights -A Case Study Using
WinForms, Event Handling and Observer Pattern
Richard Wiener, Editor-in-Chief, JOT, Associate Professor,
Department of Computer Science, University of Colorado at Colorado Springs
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Abstract
The quality of a computer simulation, from a scientific perspective,
is based on the degree to which the mathematical models that are used
to approximate “reality” capture the essence of that reality.
The application program (simulation) must of course faithfully implement
the mathematical models that describe the behavior of the system being
simulated. For a traffic grid, the aspects of reality that must be
modeled are:
- The arrival pattern of cars into each of the 16 lanes. Here
stochastic modeling is appropriate. That is the arrivals of cars
is a random
phenomena governed by known laws of statistics.
- The car-following dynamics that determines the speed of a following-car
with respect to a leading car directly in front of it.
- The timing pattern of the 15 traffic signals (the starting
time for green, its duration, the duration of amber and the duration
of red).
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About the author
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Richard Wiener is Associate Professor
of Computer Science at the University of Colorado at Colorado
Springs. He is also the Editor-in-Chief of JOT and former Editor-in-Chief
of the Journal of Object Oriented Programming. In addition to
University work, Dr. Wiener has authored or co-authored 22 books
and works actively as a consultant and software contractor whenever
the possibility arises. His latest book, just published by Thompson,
Course Technology in April 2006, is entitled Modern Software
Development Using C#/.NET.
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Cite this column as follows:Richard Wiener: “Modeling a Grid
of Traffic Lights -A Case Study Using WinForms, Event Handling and
Observer Pattern”, in Journal of Object Technology, vol. 5, no.
4, Mai - June 2006, pp. 29-58 http://www.jot.fm/issues/issue_2006_05/column4
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