Corridor Capacity The 19 th Avenue corridor from US 41 to US 301 has been programmed by Hillsborough County for a PD&E study to widen 19 th Avenue from a two-lane undivided road to a four-lane divided facility with enhanced pedestrian, bicycle, and bus facilities, including a multiuse trail. Based on the review of existing land use, approved developments, and future land use, it was determined that the civic center and the future mixed use node at 30 th Street will be the largest traffic generating nodes along the corridor. This analysis tests whether the Long Range Transportation Plan’s recommendation for four lanes along the length of the corridor is necessary, or if only the portion serving those future nodes will need to be widened. The recommendation from this analysis is not solely based on the carry capacity of the roadway but also based on understanding the future travel patterns of users, land uses that surround this corridor, and impact to the community. The analysis utilized existing and future volumes compared to the generalized Annual Average Daily (AADT) volumes from the 2013 FDOT Quality/Level of Service (LOS) Handbook. LOS values are classified fromA to F, with A being free-flow conditions, and F being failing conditions. According to the Hillsborough County Comprehensive Plan, LOS on 19 th Avenue is adopted at “D”. The LOS values along with the context of the roadway were used to determine the improvements to the current roadway configuration. Existing Year Analysis Table 1 illustrates existing Annual Average Daily Traffic (AADT), the AM and PM Peak Hour traffic, maximum service volumes (MSVs), or capacities and v/c (volume to capacity) ratios for a two-lane facility. Although all existing AADT volumes along the corridor are below the MSVs for a two-lane facility, the westbound movement in the AM Peak Hour from Cypress Village Boulevard to Cypress Creek Boulevard is greater than the MSV (v/c greater than 1.0), indicating a failing operating condition. This heavy movement is due to students being dropped off at Beth Shields Middle School and Cypress Creek Elementary School, which are located between these two intersections. Table 1 Existing two-lane Volume Analysis
Daily Capacity (1)(2) 2L
AADT, (v/c) 11,500 (0.65) 12,800 (0.72) 13,000 (0.73) 14,800 (0.84) 12,900 (0.73)
AM Pk Hr vol, (v/c)
PM Pk Hr vol, (v/c)
Pk Hr Capacity (1)
FROM
TO
EB
WB
EB
WB
24th Street NE 30th Street SE Cypress Village Boulevard Cypress Creek Boulevard
650 (0.74) 690 (0.78) 560 (0.64) 460 (0.52) 470 (0.53)
330 (0.38) 500 (0.57) 620 (0.70) 1,200 (1.36) 680 (0.77)
450 (0.51) 490 (0.56) 520 (0.59) 690 (0.78) 540 (0.61)
500 (0.57) 540 (0.61) 540 (0.61) 430 (0.49) 470 (0.53)
880
US 41
17,700
24th Street NE 30th Street SE Cypress Village Boulevard Cypress Creek Boulevard
880
17,700
880
17,700
880
17,700
880
US 301
17,700
(1) Maximum Service Volume (2) Maximum Service Volume at LOS D for a 2-lane facility, Volumes greater (v/c>1.0) would be classified as F, Source: FDOT Q/LOS Handbook
Hillsborough County | 19 th Avenue PLAT Study | June 2020
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