INTRODUCTION The 2020 Roadway Level of Service Report is a comprehensive listing of major County and State maintained roadways within unincorporated Hillsborough County and their operating conditions based upon recent counts. The MPO, in coordination with Hillsborough County staff, conducted road counts in September of 2020. Not all roadway segments were counted due to limited budget, therefore count data from previous years were used, or an interpolation of count data from an adjacent location was used where appropriate. As counts are collected, the report will be updated to include the most recent counts. State roads were are counted annually and provided by the Florida Department of Transportation (FDOT). For this report, 2020 count data was available from the FDOT. This report uses the minimum Level of Service (LOS) standards from the Transportation Element of the adopted Hillsborough County Comprehensive Plan. The most recent approved version (January 2020) of the Florida Department of Transportation (FDOT) Generalized Annual Average Daily Volumes and Generalized Peak Hour Directional Volumes were used as a base to determine maximum service volumes (capacities) for both state and county maintained roadways within the county. The operating conditions for the State Roads was calculated using average daily volumes and capacities based on FDOT’s recommended methodology. Based on Hillsborough County’s methodology, a 95 percent adjustment factor was applied to all capacities on regulated roads in Unincorporated Hillsborough County. Roadways included in this inventory are regulated arterials and collectors as defined in the Hillsborough County Comprehensive Plan. Note that the relationship between the v/c (volume to capacity) ratio and LOS (level of service) is not an exact one. The level of service thresholds can vary greatly based on the facility type. There is still a general correlation between v/c ratio and LOS that can be drawn. A v/c ratio of 1.0 or greater indicates that the counted volume exceeds the capacity of the road, which correlates to LOS F. As traffic counts, generalized service volumes, or other MOEs are updated and/or developed, the Roadway LOS Report will be updated accordingly. In accordance with Sec. 4.02.02 of the Hillsborough County Land Development Code, the FDOT Tables of Generalized Daily Level-of-Service Maximum Volumes will be used to determine initial highway capacities. The measurement of capacity may also be determined by substantiation in the form of engineering studies signed by a licensed Professional Engineer. Traffic analysis techniques must be technically sound and justifiable as determined by the County. Alterations to capacity on the State Highway System beyond ranges established by agreement between Hillsborough County and FDOT shall require FDOT review and approval. This report includes the inventory of all State and County collectors and arterials in unincorporated Hillsborough County, as well as support documentation.
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