Orange County NC Website
Browse       Search
27 <br /> Tyler Sliger <br /> Ref: 39369.04 Vhb. <br /> February 3, 2023 <br /> Memorandum <br /> Page 2 <br /> a posted speed limit of 55 mph. Based on the available information, the AADT in vehicles per day(vpd) for each year <br /> is shown in Table 2. Because AADT for 2022 is not available, AADT values from 2019 were used. For consistent <br /> comparison, the AADT from the south was projected for the 2019 year by applying a 2% annual growth rate to the <br /> 2018 traffic volume. <br /> North Carolina Level of Service (NCLOS) Tables were used to determine the approximate road capacity based on <br /> AADT values. The standard capacity in the piedmont region for rural 2-lane highways with 10-foot lanes is 11,800 vpd. <br /> The Existing (2019) AADT volumes were grown to the build-out year (2024) using an annual growth rate of two <br /> percent (2%) to calculate the expected background growth within the study area. The Build (2024) conditions account <br /> for both the No-Build (2024) traffic and the site traffic generated by the proposed development after the completion. <br /> As shown on Table 2, with the addition of all site trips, the traffic flow at the site intersection and on Dairyland Road is <br /> expected to continue to operate optimally with all V/C ratios far less than 1. <br /> Table 2: ADT— Eden View Acres Development in Hillsborough, NC <br /> Existing No-Build Site Trips Build (2024) Existing No-Build Build <br /> Direction (2019)AADT (2024)AADT (vpd) AADT Capacity (2019) V/C (2024)V/C (2024)V/C <br /> North:Orange Grove Road <br /> 1,100 1,210 104 1,314 11,800 0.09 0.10 0.11 <br /> north of Dairyland Road <br /> South:Orange Grove Road <br /> 1,400 1,550 41 1,591 11,800 0.12 0.13 0.13 <br /> south of Dairyland Road <br /> East: Dairyland Road east <br /> 850 940 269 1,209 11,800 0.07 0.08 0.10 <br /> of site driveway <br /> West:Dairyland Road west <br /> 850 940 145 1,085 11,800 0.07 0.08 0.09 <br /> of site driveway <br /> Level of Service (LOS) Analysis <br /> A LOS analysis for the intersection at the site driveway and Dairyland Road was performed for the traffic volumes <br /> using Synchro/Sim Traffic Professional Version 70. Table 3 summarizes the findings of the LOS analysis. <br /> The peak hour mainline volumes in Synchro were estimated using the calculated AADT and determining the peak hour <br /> volumes by applying a Directional Split (D) value of 60% and a K factor of 10%. <br /> Table 3: LOS— Eden View Acres Development in Hillsborough, NC <br /> Intersection and Approach Traffic Build (2024) <br /> Control AM PM <br /> Dairyland Rd&Glen Eden Stop ' <br /> Control <br /> Southbound A-9.1 A-9.1 <br />