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Traffic Operations Analysis <br /> <br />Analysis was completed fbr the 2005 and 2007 basdine scenarios ibc both the A.M. and <br />P.M. peak hours. Analysis was a[so completed ibc.alt the BuiJd and Full Build scenarios. <br />The analysis was per~brmed using the methodology of the 2000 Higl~way Capacity <br />Manual ~'ough SYNCHRO, a traffi4 anaiysis.so~w~e progrm by T~'ficware. Resu.its <br />of the analysis are displayed as measures of effectiveness. Measures o.f effectiveness ~' <br />display quantffative inl~rmation about the performance of ~ imersec, tion or network of <br />intersections. The prima~ measures that are used in ~is study are-level of service and <br />volume to capacity ratios. <br /> <br />Level of Service <br /> <br />The operational analysis resuIts are described as a Level of Service (LOS) ranging from <br />A to F and these letters serve to describe a ~m~ge of operating conditfo, nk for different <br />types of thcilities. Levels of Service arc calculated based on the 2000 FLighway Capacity <br />Manual, which defines the level of service? based on control delay, Control delay is the <br />delay' experienced by vehicles slowing down ?or a signal or stop sign, thc wait tLme at the <br />signal or stop sign,' and the time tbr tJ~e vehicle to speed up and get through the signal or <br />enter into the traffic stream.- The average intersection control cie[ay is a volmne weighted <br />average of all delay from ali intersection approaches for signalized intersections. Level <br />of Service D is commonly taken as mi acceptable design year LOS, The [eve[ of service <br />and its associated intersect[on delay for a signalized and unsignalized intersection is <br />presented below. The del'ay for unsignalized intersections [s lower tbr each LOS' <br />compared to signalized intersections accounts for the fact that people expbct a higher <br />level of service when at a stop-control'led intersection. <br /> <br />Related [.OS to Control Delay: <br /> <br />LOS <br /> <br /> 'Signalized Intersection <br />Control Delay per Vehicle (sec,) <br /> <br />A _.~'10 <br />B I >[0 and_<20 >10 and_< 15 <br />C >20 and < .35 <br /> <br />D <br /> <br />>35 and < 55 <br /> <br />Unsignatize.d. In tersection <br />Control Delay per Vehicle (sec.) <br />_<10 <br /> <br />> l 5 and < 25 <br /> <br />>25 and _< 35 <br /> <br />E >55 and _< 80 >35 and -< 50 <br />F >80 >50 I <br /> <br />Volume a> Capacity Ratios <br /> <br />Volume to capacity ratio is the propot:tion of the actual traffic utiliz/ng the facility, to the <br />~hcilitv's physical ab£1ity to can'y a specific maximum volume. This {s catcuiated by. <br />dividing the total traffic using the facility by the capacity of the £acility. This can then <br />determine [fa hcility is suflScient to handle the traffic that is expected to be traveling on <br />it. A ratio greater than 1.00 predicts that the facility, w/It be unable to dischm~e all of the <br /> <br />PuRe Homes Devel.pm.e;'~ <br />Trqffic ira?crc! Shtdy <br />C'i/y c?/'Rcm?,s'~'v, /lnoko C'o'un{y, Jdinnesoia <br /> <br /> page !5 of 24 <br /> Prepared <br />Bolton & Monk, <br /> <br />-235. <br /> <br /> <br />