9/22/1998 - Laserfiche WebLink

Home Browse Search

The number of Average Weekday Trip Ends associated with the most intense use of the subject property under the existing land use designation is 212. This was determined by multiplying the 21 units (most intense use) by ITE's single-family residential factor of 10.1 Average Daily Trip Ends/unit. The number of Average Weekday Trip Ends associated with the most intense use of the subject property under the proposed land use designation is 2,498. This was determined by multiplying the 21,000 square feet of shopping center use (most.intense use) by ITE's shopping center fitted curve factor of 119 Average Daily Trip Ends/1,000 square feet. Since the county's transportation level of service is based on peak hour/peak season/peak direction characteristics, the transportation concurrency analysis addresses project traffic occurring in the peak hour and affecting the peak direction of impacted roadways. According to ITE, the proposed use generates more volume in the p.m. peak hour than in the a.m. peak hour. Therefore, the p.m. peak hour was used in the transportation concurrency analysis. The peak direction during the p.m. peak hour on 45`h Street is westbound. Given those conditions, the number of peak hour/peak season/peak direction trips that would be generated by the most intense use of the subject property under the existing land use designation was calculated to be 7. This was determined by multiplying the total number of units allowed (21) under the existing land use designation by ITE's factor of 1.01 p.m. peak hour trips/unit, to determine the total number of trips generated. Of these trips, 65% will be inbound and 35% will be outbound. Of the inbound trips, 50% or 7 will be westbound. To determine the number of peak hour/peak season/peak direction trips that would be generated by the most intense use of the subject property under the proposed land use designation, the total square footage of shopping center allowed under the proposed amendment (21,000) was multiplied by ITE's factor of 10.87 p.m. peak hour trips/1,000 square feet to determine the total number of trips generated (228). Of these trips, 49% or 110 trips are new trips, which are due to the proposed land use designation. From the new trips, 48% (53) will be inbound and 52% (57) will be outbound. Of the inbound trips, 65% or 34 trips will originate from the east of the subject property. Therefore, the most intense use of the subject property under the proposed land use designation would generate 27 (34 - 7 = 27) more peak hour/peak season/peak direction trips than the 7 that would be generated by the most intense use of the subject property under the existing land use designation. Using a modified gravity model and a hand assignment, the peak hour/peak season/peak direction trips generated by the proposed use were then assigned to impacted roads on the network. Impacted roads are defined in section 910.09(4)(b)3 of the county's LDRs as roadway segments which receive five percent (5%) or more of the project traffic or fifty (50) or more of the project trips, whichever is less. 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 G September 22, 1998 42 Existing Land Use Proposed Land Use Designation Designation 4. Number of Peak Hour/Peak Season/Peak Direction Trips 6.89 34 Generated: 5. Number of Average Weekday Trips Generated: 212.1 2,498 6. Traffic Capacity on This Segment of 45' Street, at a 760 peak hour/peak I 760 peak houripeak LOS "D" season/peak direction season/peak direction trips trips 7. Total Segment Demand (Existing Volume+ Vested 352 peak/hour/peak 352 peak/hour/peak Volume) on This Segment of 45`s Street season/peak direction seasonipeak direction trips trips The number of Average Weekday Trip Ends associated with the most intense use of the subject property under the existing land use designation is 212. This was determined by multiplying the 21 units (most intense use) by ITE's single-family residential factor of 10.1 Average Daily Trip Ends/unit. The number of Average Weekday Trip Ends associated with the most intense use of the subject property under the proposed land use designation is 2,498. This was determined by multiplying the 21,000 square feet of shopping center use (most.intense use) by ITE's shopping center fitted curve factor of 119 Average Daily Trip Ends/1,000 square feet. Since the county's transportation level of service is based on peak hour/peak season/peak direction characteristics, the transportation concurrency analysis addresses project traffic occurring in the peak hour and affecting the peak direction of impacted roadways. According to ITE, the proposed use generates more volume in the p.m. peak hour than in the a.m. peak hour. Therefore, the p.m. peak hour was used in the transportation concurrency analysis. The peak direction during the p.m. peak hour on 45`h Street is westbound. Given those conditions, the number of peak hour/peak season/peak direction trips that would be generated by the most intense use of the subject property under the existing land use designation was calculated to be 7. This was determined by multiplying the total number of units allowed (21) under the existing land use designation by ITE's factor of 1.01 p.m. peak hour trips/unit, to determine the total number of trips generated. Of these trips, 65% will be inbound and 35% will be outbound. Of the inbound trips, 50% or 7 will be westbound. To determine the number of peak hour/peak season/peak direction trips that would be generated by the most intense use of the subject property under the proposed land use designation, the total square footage of shopping center allowed under the proposed amendment (21,000) was multiplied by ITE's factor of 10.87 p.m. peak hour trips/1,000 square feet to determine the total number of trips generated (228). Of these trips, 49% or 110 trips are new trips, which are due to the proposed land use designation. From the new trips, 48% (53) will be inbound and 52% (57) will be outbound. Of the inbound trips, 65% or 34 trips will originate from the east of the subject property. Therefore, the most intense use of the subject property under the proposed land use designation would generate 27 (34 - 7 = 27) more peak hour/peak season/peak direction trips than the 7 that would be generated by the most intense use of the subject property under the existing land use designation. Using a modified gravity model and a hand assignment, the peak hour/peak season/peak direction trips generated by the proposed use were then assigned to impacted roads on the network. Impacted roads are defined in section 910.09(4)(b)3 of the county's LDRs as roadway segments which receive five percent (5%) or more of the project traffic or fifty (50) or more of the project trips, whichever is less. 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 G September 22, 1998 42