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9. Existing Traffic Volume on this segment of 12th Street: 84 Peak Hour/Peak Season/Peak Direction Trips Since the county's transportation level of service is based on peak hour/peak season/peak direction characteristics, the transportation concurrency analysis only addresses project traffic occurring in the peak hour and affecting the peak direction of impacted roadways. In this case, 8th Street and 12th Street have more volume in the p.m. peak hour than in the a.m. peak hour, so the p.m. peak hour was used for the transportation concurrency analysis. According to recent count data on 8th Street and -on 12th Street, the peak direction during the p.m. peak hour is west. Given those conditions, the number of trips associated with the parcel 2 request was determined first by taking the total number of single-family residential units (107) allowed under the proposed zoning for the 35.65 acre parcel, applying ITE's 1.012 p.m. peak hour trips per single family residential unit factor to get total peak hour trips, and applying the ITE single family residential use p.m. peak hour inbound factor of 658 to the total p.m. peak hour trips for the use to get the west bound (peak direction) peak hour volume of trips for the parcel. The same methodology was used to obtain -the parcel's p.m. peak hour exiting volume; however, a 358 outbound factor was used instead of the 658 inbound factor. The same general calculation was made for parcels 1 and 3. With the requested multiple -family zoning for the ±10.61 acres, the number of trips associated with these parcels was determined by taking the total number of condominium/townhouse units (85) allowed under the proposed zoning, applying ITE's 0.55 p.m. peak hour trips per condominium/townhouse unit factor to get total peak hour trips, and applying the ITE condominium/townhouse use p.m. peak hour/inbound factor of 668 to the total p.m. peak hour trips for the use to get the west bound (peak direction) peak hour volume of trips for Parcels 1 and 3. Using a modified gravity model and a hand assignment, the trips for all three parcels were then assigned to roadways on the network. As a result of this assignment, two volumes were obtained for each impacted roadway segment. These volumes represent the p.m. peak hour volume for each direction of the roadway. Using the volume assigned to the peak direction of each roadway, -a capacity determination was made for each segment. This capacity determination involved comparing the assigned volume to the segment's available capacity. Capacities for all roadway segments in Indian River County are calculated and updated annually, utilizing the latest and best available peak season traffic characteristics and applying Appendix I methodology as set forth in the Florida Department of Transportation (FDOT) Level of Service (LOS) Manual. Available capacity is the total capacity less existing and committed traffic volumes; this is updated daily, based upon vesting associated with project approvals. Based upon staff analysis, it was determined that 8th Street, 12th Street, and the other impacted roadways serving the project can accommodate the additional trips without decreasing the existing level of service. Impacted roadways are defined in the County's Land Development Regulations as roadway segments which receive five percent (5%) or more daily project traffic or fifty (50) or more daily project trips, whichever is less. The table below identifies each of the impacted roadway segments associated with this proposed rezoning. As indicated in that table, there is sufficient capacity in all of the segments to accommodate the most intense use allowed by the proposed rezoning. 43 '-,� . -4n 500K 8b FA,,A i u L_ HAR 101 1992