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Subproblem 2b - Page 3 of 3

ID# C302B03

Sub-problem 2b: Analysis of the Center Section of Krome Avenue (Class I Two-lane Highway Facility)

The estimated LOS for this facility is E because the design-hour volume (1,190 vph) exceeds the LOS D threshold (1,000 vph) but falls below the LOS E threshold (2,770 vph).

It was pointed out in sub-problem 2a that HCM Exhibit 12-15 may also be used to project the year in which a given LOS would be exceeded. We will not repeat those computations here because the LOS D threshold has already been exceeded.

In this sub-problem, we have produced an estimate of the LOS for the facility defined by the center section of Krome Avenue, assuming that it operates with the characteristics of typical two-lane highways of the same class. In sub-problem 3b we will examine the assumptions and substitute observed values for this facility to apply the more detailed operational procedures.

Based on Exhibit 3-14, this section of Krome Avenue operates near LOS E.

Exhibit 3-14. Center Section Planning Level Estimation Based on HCM Exhibit 12-15 Assumptions

Terrain Level
Posted Speed 45-50 mph
Free Flow Speed 50 mph
Directional Split: 60/40
Percent Trucks 14
Percent RVís 4
Percent No Passing 20
Design Hour Volume 1,190 vph

Table Thresholds

LOS A

---

LOS B

---

LOS C

330

LOS D

1,000

LOS E

2,770

Estimated LOS E

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