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5. Formula for Determining Number of Average Weekday Trips <br />Generated: Number of Units X Average Weekday Rate(52 X 10.1 = 5251 <br />6. Traffic Capacity on this segment of 66th Avenue, at a Level of <br />Service "D": 650 peak hour/peak season/peak direction trips <br />7. Existing Traffic volume on this segment of 66th Avenue: 181 <br />peak hour/peak season/peak direction trips <br />The number of Average Weekday Trip Ends associated with the most <br />intense use of the subject property under the existing zoning <br />district is 30. This was determined by multiplying the 3 units <br />(most intense use) by ITE's single-family residential factor of <br />10.1 Average Daily Trip Ends/unit. <br />The number of Average Weekday Trip Ends associated with the most <br />intense use of the subject property under the proposed zoning <br />district is 525. This was determined by multiplying the 52 units <br />(most intense use), by ITE's single-family residential factor of <br />10.1 Average Daily Trip Ends/unit. <br />Since the county's transportation level of service is based on peak <br />hour/peak season/peak direction characteristics, the transportation <br />concurrency analysis addresses project traffic occurring in the <br />peak hour and affecting the peak direction of impacted roadways. <br />According to ITE, the proposed use generates more volume in the <br />p.m. peak hour than in the a.m. peak hour. There f ore , the p.m. <br />peak hour was used in the transportation concurrency analysis. The <br />peak direction during the p.m. peak hour on 66th Avenue is <br />northbound. <br />Given those conditions, the number of peak hour/peak season/peak <br />direction trips that would be generated by the most intense use of <br />the subject property under the existing zoning district was <br />calculated to be 2. This was determined by multiplying the total <br />number of units allowed under the existing zoning district (3) by <br />ITE's factor of 1.01 p.m. peak hour trips/unit, to determine the <br />total number of trips generated. Of these trips, 65% (2) will be <br />inbound and 35% (1) will be outbound. <br />To determine the number of peak hour/peak season/peak direction <br />trips that would be generated by the most intense use of the <br />subject property under the requested zoning district, the total <br />number of units allowed under the proposed district (52) was <br />multiplied by ITE's factor of 1.01 p.m. peak hour trips/unit to <br />determine the total number of trips generated (53). Of these <br />trips, 65% (34) will be inbound and 35% (19) will be outbound. <br />Therefore, the most intense use of the subject property under the <br />proposed zoning district would generate 32 (34 - 2 = 32) -more peak. <br />hour/peak season/peak direction trips than the 2 that would be <br />generated by the most intense use of the subject property under the <br />existing zoning district. <br />Using a modified gravity model and a hand assignment, the peak <br />hour/peak season/peak direction trips generated by the proposed use <br />were then assigned to impacted roads on the network. Impacted <br />roads are defined in section 910.09(4)(b)3 of the county's LDRs as <br />roadway segments which receive five percent (5%) or more of the <br />project traffic or fifty (50) or more of the project trips, <br />whichever is less. <br />Capacities for all roadway segments in Indian River County are <br />calculated and updated annually, utilizing the latest and best <br />available peak season traffic characteristics and applying Appendix <br />G methodology as set forth in the Florida Department of <br />Transportation Level of Service Manual. Available capacity is the <br />total capacity less existing and committed traffic volumes; this is <br />updated daily based upon vesting associated with project approvals. <br />DECEMBER 5, 1995 21 BOOK 96 PnE 717 <br />L_ <br />