The following legend provides a definition or description for each variable in the 2020 Level of Service Report.
Peak Hour Pk Dir Vol Daily MSV
Pk Hr Pk Dir v/c Ratio Jurisdiction
Local Func Class
Lane Type Length
Speed Limit LOS Std AADT
Daily v/c Ratio
Pk Hr Pk Dir MSV
Lane No
On Street
From To
On Street
The common name assigned to the road segment (street name) The cross street or location at which the segment begins The cross street or location at which the segment ends
From
To
Lane No
Number of lanes per direction
Lane Type
U - undivided, D - divided, O - one way, F - freeway
Length
Length of the segment in miles
Speed Limit
Current posted speed limit of the segment
LOS Std
Standard Level of Service for the particular roadway as adopted and documented in the Hillsborough County Comprehensive Plan. Average Annual Daily Traffic - The AADT is the number of vehicles that travel on a specified segment of a road on an average day. For segments with multiple counts, the highest number was generally used. For aggregated segments, traffic counts may be weighted according to the length of each individual link and may not match a specific count Peak Hour Peak Direction Volume - Where count info was available, this is a measured value. Otherwise, it was determined by (AADT x K x Directional Factor) Maximum Service Volume (Daily Capacity) - The maximum rate of flow at which vehicles can traverse a point or uniform segment roadway and maintain the performance standard as measured by speed for interrupted flow facilities and V/C ratio for uninterrupted flow facilities during the daily (AADT) period. Volume over Capacity - AADT Volume to capacity of the roadway. V/C greater than 1.0 indicates a roadway exceeds the available capacity
AADT
Peak Hour Pk Dir Vol
Daily MSV
Daily v/c Ratio Pk Hr Pk Dir MSV
Peak Hour Peak Direction Maximum Service Volume (Capacity) Pk Hr Pk Dir v/c Ratio Volume over Capacity - PM Peak Hour Directional Volume to capacity of the roadway Jurisdiction Regulating authority of the segment.
Local Functional Class - The assignment of roads into systems according to the character of service they provide in relation to the road network The abbreviations are: PA - Principal Arterial, A - Arterial, C - Collector
Local Func Class
Note that the relationship between v/c (volume to capacity) and LOS (level of service) is not an exact one The level of service thresholds vary greatly based on the facility type For example, Boyette Rd from Balm Riverview to Bell Shoals is defined as a Class 1 County arterial Pk Hr Pk Dir LOS D MSV = 1900 and LOS C MSV = 1815
Therefore w a peak hour peak dir vol of 1748, LOS = C (1748 is below the LOS C threshold of 1815) Even though the v/c ratio is high (1748/1900 = 0.92)
Countryway, from Linebaugh to Citrus Park is defined as a County collector Pk Hr Pk Dir LOS D MSV = 1549 and LOS C MSV = 694
Therefore w a peak hour peak dir vol of 983, LOS = D (983 is above the LOS C threshold of 694) Even though the v/c ratio is lower than Boyette (983/1549 = 0.0.63)
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