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Kimley>>> Horn Traffic Impact Analysis FUTURE BACKGROUND TRAFFIC Future background traffic conditions are defined as expected traffic conditions on the roadway network in the year 2029 without the completion of the proposed development. Future background traffic volumes used in the analysis are the sum of the existing traffic and additional traffic generated by growth in the study area. BACKGROUND AREA GROWTH f Traffic growth on the transportation network was determined based upon (a) historical growth trends at nearby FDOT traffic count stations and (b) traffic volume comparisons from the year 2015 and 2045 Florida Standard Urban Transportation Model Structure (FSUTMS) - Southeast Florida Regional Planning Model (SERPM). FDOT count stations referenced in this analysis include: • FDOT count station no. 0269 located on SR A1A/Collins Avenue, south of NE 1741h Street • FDOT count station no. 0314 located on SR A1A/Collins Avenue, north of SR 856/NE 192nd Street The historical growth rate analysis, based on the FDOT count station, examined linear, exponential, and decaying exponential growth rates for the most recent five (5) and 10-year periods. In order to provide a conservative analysis, traffic counts for 2020 and 2021 were interpolated based on 2019 and 2022 values as a result of atypical traffic conditions. The linear growth trend yielded a growth rate of 2.09 percent (2.09%) over the most recent five (5) year period and 1.18 percent (1.18%) over the most recent 10-year period. The exponential growth trend yielded a growth rate of 2.02 percent (2.02%) over the most recent five (5) year period and 1.15 percent (1.15%) over the most recent 10-year period. The decaying exponential growth trend yielded a growth rate of 1.93 percent (1.93%) over the most recent five (5) year period and 1.04 percent (1.04%) over the most recent 10-year period. The calculated growth rate with the highest R2 value was determined to be the 5-year exponential growth trend which yielded a growth rate of 2.02 percent (2.02%). Based on the forecasted volumes obtained from the 2015 and 2045 FSUTMS SERPM 8.531, an annual growth rate of 0.71 percent (0.71%) in the vicinity of the development was calculated. Therefore, to provide a conservative analysis, the higher growth rate of 2.02 percent (2.02%) was applied to existing traffic volumes to develop future 2029 volumes. The worksheets used to analyze the historical growth trends along with the FSUTMS transportation model outputs are K:\17Li TO\044WWM- RDBH S... y Isles\Report\Oty of Sunny Isles Beach ➢A 092025A... Page-5 September 2025 142