Basic HTML Version
Chapter 8: Left Turn Phasing—Permitted, Protected, or Both
265
The purpose of this activity is to give you the chance to assess your understanding of left turn phasing
options.
•
Describe the basic concepts of left turn phasing
•
Prepare a document with your answers to the Critical Thinking Questions
1. What experiment could you construct to determine the capacity limit of the left turn and opposing
through volumes for a given intersection? Describe your experiment.
2. What calculation could you make to determine the reduction in capacity that would occur in the
through movements if the phasing plan was changed from permitted left turn phasing to protected left
turn phasing? Describe your calculation.
46
What Do You Know About Left Turn Phasing?