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Chapter 7: Timing Processes for the Intersection
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The purpose of this activity is to help you to understand how timing parameters on the minor street affect
the major street and overall intersection operations.
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Determine the effect of the minor street vehicle extension setting on the efficiency of major street and
intersection operations
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Movie file:
A41.wmv
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Prepare a spreadsheet with the following information:
Tab 1:
Title page with activity number and title, authors, and date completed
Tab 2:
Answers to the Critical Thinking Questions and the data that you recorded in Table 20 through
Table 24
1. How do the eastbound and southbound approach queue lengths vary given the two vehicle extension
time values used for the southbound approach?
2. How does an increase in the southbound approach vehicle extension time affect the eastbound green
interval duration?
3. How does the increase in the southbound approach vehicle extension time affect the cycle length?
4. What effect does the vehicle extension time have on the delay experienced for these two cases?
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Determining the Effect of the Minor Street Vehicle
Extension Time on Intersection Operations