Sub-problem 6a - Page 1 of 2
Sub-problem 6a: Planning Analysis at Palouse River Drive
The Idaho Transportation Department has
provided historic traffic volume data for U.S. 95 to help determine a historic
growth rate. This data suggests an annual growth rate of 3.4 percent per year
over the past 20 years, and 2.6 percent over the past 10 years.
The City of Moscow has provided planning
model volumes that project 20-year traffic growth on the U.S. 95 corridor to be 50
percent over the next twenty years. Based on this information, what is the number of lanes required for the intersections along the
corridor in twenty years, assuming an annual traffic growth rate along the
corridor of two percent?
In sub-problem 6a, we will use the planning
analysis technique to evaluate conditions that occur
when traffic is leaving a football game at the University of Idaho. Demand
is high for about an hour after the conclusion of the game and the U.S. 95
corridor experiences a high level of congestion during this period.
Consider the following: