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10 <br /> MPO Board 10/9/2019 Item 8 <br /> Ref: 38587.01 <br /> October 1, 2019 <br /> Page 4 <br /> left the corridor by this point used White Cross Road (7%) and Bethel-Hickory Grove Church Road (4%). The <br /> remaining 6%departed via Dodsons Crossroads, Butler Road, Neville Road, Hatch Road, and various smaller roads <br /> and driveways. (Due to rounding, percentages may not add up precisely.) <br /> Ten percent of traffic drops off at Old Fayetteville Road (8% northbound and 2%southbound), leaving 73%of the <br /> original traffic on NC 54. Another 7%of trips are destined for development in the immediate vicinity of Carrboro <br /> Plaza. The remaining 66% divides between West Main Street(12%) and NC 54 Bypass (54%).This represents an <br /> 82%/18% (or 4.5 to 1) split of this traffic between NC 54 Bypass and West Main Street. <br /> For comparison,the analysis was repeated for only the period between 6:00 and 10:00 AM, which includes the <br /> critical AM peak. These results are summarized in Figure 7. The most significant differences are that a higher <br /> proportion of traffic is still on NC 54 just west of Old Fayetteville Road (91%versus 83%), and that most of this <br /> increase continues onto NC 54 Bypass (63%of origin traffic, as opposed to 54% on a daily basis). This results in an <br /> increased share relative to West Main Street (85%/15%, or 5.7 to 1). These differences are consistent with a higher <br /> proportion of commuter traffic to UNC in the morning peak. <br /> Westward Trip Distribution <br /> Similar analyses were performed to estimate the westward distribution of NC 54 traffic to/from West Main Street, <br /> and to/from NC 54 Bypass. Note that the"100%" label in these figures represents only traffic passing those points <br /> (on West Main Street or NC 54 Bypass), in both directions. For simplicity and clarity,we will discuss westbound <br /> trips; eastbound trips are the mirror image of these. Figure 8 depicts the findings of this analysis for traffic on West <br /> Main Street immediately east of NC 54, where the 2017 AADT is 6,400 veh/day. About 44%of this traffic is <br /> associated with destinations in the immediate vicinity of Carrboro Plaza. Another 26% heads east on NC 54 Bypass. <br /> Old Fayetteville Road attracts 6%to the north, and 2%to the south, leaving 22%of the original traffic on NC 54 <br /> immediately west of Old Fayetteville Road. Another 9%disperses before Dodsons Crossroads, mainly via Neville <br /> Road (2%) and Bethel-Hickory Grove Church Road (2%).Another 2%each turn off on Dodsons' Crossroads and White <br /> Cross Road, with 10%of the traffic from West Main Street remaining on NC 54 just east of Orange Grove Road. This <br /> translates to a drop of nearly 800 vehicles between Old Fayetteville and Orange Grove Roads. <br /> Figure 9 summarizes the results of a similar analysis for NC 54 Bypass south of West Main Street,where the 2017 <br /> AADT is 25,000 veh/day. Ten percent of this traffic diverts east onto West Main Street, and another 30% heads for <br /> destinations in the vicinity of Carrboro Plaza. A substantial 21% heads north via Old Fayetteville Road,with 1%going <br /> south, leaving 38%of the original traffic on NC 54 to the west. Intervening roads and driveways attract another 7% <br /> between Old Fayetteville Road and Dodsons Crossroads. White Cross Road (2.5%) and Dodsons Crossroads (1.5%) <br /> account for most of the remaining reduction, leaving 27%of the original NC 54 Bypass traffic on NC 54 just east of <br /> Orange Grove Road. This represents a decrease of nearly 2,800 vehicles between Old Fayetteville and Orange Grove <br /> Roads. <br /> Page 4 of 12 <br />