Sub-problem 2c - Page 1 of 7 |
ID# C402C01 |
Sub-problem 2c: What
is the Level of Service at the Ramp Junction at the Northbound On-Ramp to
I-87?
Step 1. Setup
In this problem, we will consider the merge point between
I-87 northbound and the ramp from westbound Alternate Route 7. The ramp
itself is complex since it also has a merge point with the intersection
of the on-ramp from U.S. 9. You can learn more about the ramp by
clicking on the Exhibit caption.
As we begin this sub-problem, let's consider several issues that relate to
the analysis of a freeway ramp junction:
 |
Should we consider only the vicinity of the junction
itself, or are there other areas that we should consider as well? |
 |
What input data are needed to conduct this
analysis? |
 |
What is the primary measure of effectiveness for a merge
point analysis? |
 |
What parameters are forecasted by the merge point
analysis models in the HCM? |
 | What are some of the limitations of the merge point
analysis model that we must keep in mind when applying it to this
sub-problem? |
Discussion:
Take a few minutes to consider
these questions. When you are ready, continue to the next page.
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