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Page 2 <br />kimley-horn.com 300 Morris Street, Suite 200, Durham, NC 27701 919 682 3583 <br /> <br />Trip Distribution and Assignment <br />The same overall trip distribution for Phases 1 and 2 were obtained from previous analyses and <br />were not modified for this analysis. However, the site traffic percent assignment was modified for <br />this analysis to account for the shifted site driveway and reconfiguration of Ben Johnston Road. <br />Site trip distribution and percent assignment used in this analysis are shown on Figures 1–3. <br />Figures 4–6 show the Phase 1 peak volumes at the study intersections, while Figures 7–9 show <br />the full build-out (Phase 1 + Phase 2) peak volumes at the study intersections. <br />While only three study intersections are impacted by the proposed site driveway relocation, all <br />study intersections are shown on the volume figures for reference. <br />Capacity Analysis <br />Capacity analyses were performed using Synchro and SimTraffic Version 10 software. It should <br />be noted that this analysis intentionally assumes signal cycle lengths that are longer than <br />necessary as a means of modeling worst-case queues for storage length determinations. As a <br />result, actual delays and queues are expected to be better than presented in this analysis. Table <br />1 summarizes intersection operations for the projected build-out traffic condition at the impacted <br />study intersections only. <br />Table 1  <br />Level-of-Service Summary  <br />Condition AM Peak Hour <br />LOS (Delay) <br />PM Peak Hour <br />LOS (Delay) <br />Saturday Peak Hour <br />LOS (Delay) <br />US-70/I-40 Connector & I-40 EB Ramps (Signalized by Project) <br />Build-out Traffic – Phase 1 C (34.6) D (35.8) D (47.9) <br />Build-out Traffic – Phase 2 C (28.7) C (22.4) C (20.5) <br />US-70/I-40 Connector & I-40 WB Ramps (Signalized by Project) <br />Build-out Traffic – Phase 1 B (15.2) C (23.4) C (22.4) <br />Build-out Traffic – Phase 2 B (13.9) C (23.0) B (19.9) <br />US-70/I-40 Connector & Ben Johnston Road (Unsignalized, Convert to RI/RO by Project)* <br />Build-out Traffic – Phase 1 WB – A (6.3) WB – B (11.7) WB – B (11.2) <br />Build-out Traffic – Phase 2 WB – A (3.9) WB – A (9.4) WB – A (7.2) <br />US-70/I-40 Connector & Site Driveway (Signalized by Project) <br />Build-out Traffic – Phase 1 B (15.3) B (14.6) B (12.5) <br />Build-out Traffic – Phase 2 B (14.4) B (15.5) B (15.4) <br /> <br />* Note: HCM methodology does not report an overall level of service for the unsignalized intersections. The <br />SimTraffic level of service and delay for the worst side-street approach are reported for this intersection. <br />951