Sub-problem 1a - Page 5 of 9 |
ID# C201A05 |
Sub-problem 1a: Maxwell Drive PM
Peak Hour - Existing Conditions
Skipped
Phases
Most actuated controllers are capable of skipping phases. If no
traffic is present to call the phase, the controller moves on
to the next movement or returns to a rest condition. This presents a
challenge for most analytical analysis methodologies that examine an
average cycle for the signal. We are going to look at skipped phases from the following
perspectives:
Discussion:
Think of some other traffic analysis models with which you are familiar.
How do they deal with skipped phases? Is simulation a good way to study
this issue? What might be the problems in using simulation? If you did use
simulation, how many cycles would you need to study to obtain credible
information about the signal's performance? Would you need to do multiple
runs? Using multiple seeds?
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