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RESEARCH TRIANGLE LOGISTICS PARK TRAFFIC IMPACT ANALYSIS <br />Traffic Volumes <br />June 4, 2020 <br /> 14 <br /> <br />x Old NC 86 at Waterstone Drive / Rippy Lane <br />x Old NC 86 at I-40 WB Ramps <br />x Old NC 86 at I-40 EB Ramps <br />x Old NC 86 at Service Road <br />x Old NC 86 at Davis Road <br />5.1 FUTURE TRAFFIC GROWTH <br />Future traffic growth is the increase in traffic volumes due to usage increases and non-specific growth throughout the <br />area. The balanced 2016 existing volumes from the Settler’s Pointe TIA were grown by a 1% annual rate to estimate <br />the 2020 volumes. This growth is shown in Figure 5. <br />The 2020 traffic volumes were subsequently grown by a 1% annual rate to account for background growth to 2023. <br />This growth is shown in Figure 6. All traffic volume calculations are contained in the Appendix. <br />5.2 APPROVED DEVELOPMENT TRAFFIC <br />As this study uses the traffic counts from the Settler’s Pointe TIA, the approved development information presented in <br />the prior study was determined suitable for use in this analysis. Specifically, the Waterstone Development was <br />partially constructed at the time the traffic counts were obtained. This development consists of single family homes, <br />townhomes, apartments, a soccer complex, and hospital space. Trips associated with Waterstone are shown in <br />Figure 7 and a discussion from the Settler’s Pointe TIA is provided in the scoping forms in the Appendix. <br />5.3 NO-BUILD TRAFFIC VOLUMES <br />The historical growth and approved development traffic volumes were added to the 2020 existing volumes to <br />determine the No-Build traffic volumes. The 2023 No-Build traffic volumes are shown in Figure 8. All traffic volume <br />calculations are contained in the Appendix. <br />5.4 TOTAL BUILD TRAFFIC WITH PROPOSED DEVELOPMENT <br />To obtain the total 2023 Build traffic volumes, the distributed site traffic was added to the respective no-build traffic <br />volumes. The total AM and PM peak hour turning movement volumes for the study intersections were then <br />calculated and analyzed for the 2023 traffic scenarios. The 2023 Build-out traffic volumes are shown in Figure 11. All <br />traffic volume calculations are contained in the Appendix. <br /> <br />137