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Buc-ee’s – Efland, NC <br /> <br />29 <br /> <br />7.0 Weaving Analysis <br /> <br />Weaving occurs when one vehicle must cross the path of another vehicle along the length of a <br />one-way road segment without the aid of traffic control devices. Excessive weaving can increase <br />collision risk and impede traffic operations within the weaving segment. <br /> <br />Weaving capacity, which is measured in density, is defined as the maximum volume of vehicles <br />that can weave across one lane within a particular roadway segment. Weaving capacity is <br />combined with Level-of-Service (LOS) to describe the operating characteristics of a weaving <br />segment. LOS is a qualitative measure that describes operational conditions and motorist <br />perceptions within a traffic stream. The Highway Capacity Manual defines six weaving levels of <br />service, LOS A through LOS F, with A representing the shortest average delays and F <br />representing the longest average delays. <br /> <br />The volume-to-capacity ratio (v/c) is also considered when examining weaving capacity. If a <br />segment’s v/c is greater than 1.00, then demand exceeds theoretical capacity, and the segment is <br />assigned LOS F regardless of the segment’s calculated density. <br /> <br />Table 7.0 lists the LOS density thresholds published in the Highway Capacity Manual for <br />freeway, multilane highway, and collector-distributor road segments. All weaving analyses are <br />included in the Appendix and are briefly summarized in the following paragraphs. <br /> <br />Table 7.0 <br />Weaving Level-of-Service Density Thresholds <br />Level-of- <br />Service <br />Freeway Weaving Segments <br />[pc/mi/ln] <br />Multilane Highways or Collector- <br />Distributor Roadways [pc/mi/ln] <br />A ≤ 10 ≤ 12 <br />B > 10 – 20 > 12 – 24 <br />C > 20 – 28 > 24 – 32 <br />D > 28 – 35 > 32 – 36 <br />E > 35 > 36 <br />F v/c > 1.00* v/c > 1.00* <br />* Note: a weaving segment is assigned LOS F if v/c > 1.00 regardless of the calculated density. <br /> <br />A weaving analysis (see Appendix) was performed for the weekday AM, PM and Saturday peak <br />hours for the projected (2022) build-out traffic condition using Highway Capacity Software (HCS <br />Version 7.8.5) to determine the operating conditions of the roadway segments listed below. <br />Volumes associated with these weaving movements are including in the intersection spreadsheets <br />in the appendix. <br /> <br /> I-40 EB Service Road from Mt. Willing Road to US-70/I-40 Connector <br /> I-40 EB Service Road from East RI/RO Site Driveway to Mt. Willing Road <br />150