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Sub-problem 1a - Page 2 of 2 |
ID# C301A02 |
Sub-problem 1a: Determining the Facility Type and
Scope of the
Analysis
Step 2: Results
What are the primary
criteria used to determine the facility type? The primary criterion the HCM uses for distinguishing
an urban street vs. a two-lane highway is signalized intersection
spacing. The HCM suggests in Chapter 20 that:
Two-lane highways
in urban and suburban areas with multiple signalized intersections at
spacings of 2.0 mi or less can be evaluated with the methodology of Chapter
15, Urban Streets.
The route overview shown in
Exhibit 3-2 suggests that this question can be
answered easily. The signals south of Eureka Drive have a consistent spacing of
about 1 mile over this seven-mile section. There are only two signals in
the 26 miles north of Eureka Drive. So, for purposes of analysis by the HCM
procedures, Eureka Drive should clearly be the dividing point between the
two-lane highway and the signalized arterial as shown in Exhibit 3-7.
South of Eureka Drive: signalized arterial
North of Eureka Drive: two-lane highway
How might the facility designation matter in the
analysis? The importance of the designation of Krome Avenue relates
back to the stakeholders considered at the onset of this Case Study. The
interested parties have different perspectives, and our analysis must be
sensitive to these considerations. While our designation of Krome Avenue may
be appropriate under today's conditions, future development may result in
significant changes that may require us to reconsider this designation.
What additional information might be
needed? In consideration of the long-term nature of these corridor issues,
the following issues and information are necessary to address future year
conditions and to refine the scope of the analysis:
