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Chapter 2: Modeling What We’ve Observed: Queuing Systems
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The purpose of this activity is to introduce you to queuing systems as they apply to the operation of
signalized intersections.
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Describe the basic components of a queuing model representing traffic flow at a signalized intersection
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Define the terms and variables in the Glossary
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Prepare a document that includes answers to the Critical Thinking Questions
Provide a definition for each of the following terms and variables. Paraphrasing a formal definition (as
provided by your text, instructor, or another resource) demonstrates that you understand the meaning of
the term or phrase.
average delay
cumulative
vehicle
diagram
platoon
queue
accumulation
polygon
queuing
system
saturation
flow rate
time space
diagram
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Modeling Traffic Flow at Signalized Intersections