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Chapter 5: The Simulation Environment: Learning to See a Traffic Signal System
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The purpose of this activity is to give you the opportunity to learn how to build and use a simulation model
network. You will use this network as you prepare a design for an isolated signalized intersection.
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Build and use a simulation network
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Base VISSIM network (VISSIM .inp and other files)
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VISSIM tutorial
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Modified VISSIM files
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Prepare an Excel spreadsheet that includes the data that you have collected, the sketches that you
made, and your observations of the data and the simulation. This information represents the base data
for the beginning of your design work, and against which you will compare the design plans that you
develop. The spreadsheet should include tabs for each of the following:
Tab 1:
Title page with activity number and title, authors, and date completed
Tab 2:
Sketches as per Task 1
Tab 3:
Evaluation data as per Task 6
Tab 4:
A summary of the traffic flow characteristics that you observe in the animation
Tab 5:
A summary of the evaluation data that you have collected, including your comments on the
evaluation data and what you learn from these data
Tab 6:
Answers to questions from Task 6
1. Are your observations of the animation consistent with the output data produced in Task 6?
2. What traffic problems do you observe? (Some example traffic problems might include: queues not
clearing before the end of green, or queues spilling out of a left turn pocket and into a through lane).
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Building a Simulation Model Network