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Sub-problem 3a: Analysis of the North Section of Krome Avenue (Class I Two-Lane Highway)

The table below compares the results from the planning level analysis in sub-problem 2a with the operational level analysis. This table shows the values assumed by the service volume tables for all parameters, as compared with the values that apply to this facility. It shows the computations and results for both methods. The ATS was computed as 45.2 mph, which suggests LOS C. The PTSF was computed as 66.9%, which suggests LOS D.

So, the resulting LOS was based on the PTSF and was found to be LOS D. This result was identical to the LOS estimate given by the service volume tables. The interpretation of the agreement between the two procedures is that the sum total of all of the differences between the assumed parameters and the site-specific parameters for this facility was not sufficient to produce a difference in the estimated level of service.

Sub-Problem 2a Planning Analysis vs. Sub-Problem 3a Operational Analysis
Input Data		Sub-problem 2a	Sub-problem 3a
Terrain		Level	Level
Base Free Flow Speed		N/A	56.5
Access point / mile		N/A	1
Shoulder Width		N/A	3
Free Flow Speed		55	55
Directional Split		60/40	62/38
Percent Trucks		14	27
Percent RV’s		4	Included in Truck %
Percent No Passing		20	18
PHF		N/A	0.94
Design Hour Volume		1,110	1,110
Comparison of Results
Table Thresholds			Computations
LOS A	---		ATS = 45.2 mph
LOS B	330		PTSF = 66.9
LOS C	870		v/c = 0.38
LOS D	1,460
LOS E	2,770
Estimated LOS:		D	D