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Traffic Operations Analysis <br /> <br />Analysis was completed fbr the 2005 and 2007 baseline scenarios ibr both the A.M. and <br />P:M. peak hours. Analysis was also completed for all the Build and Full Build scenarios. <br />The analysis was pertbrmed using the methodology of the 2000 Highway Capacity <br />Manual du'ough SYNCHRO, a traffic analysis software program by Trafficware. Results <br />of the analysis are displayed as mea§ures of'effectiveness. Measures of effectiveness <br />display quantiiative intb,'mation about tile pertbrmance of an intersection or network of <br />intersections. The prima~ measures that are used in ti'tis study are'level of service and <br />volume to (:apacity ratios. <br /> <br />Level of Service <br /> <br />The operational mmlysis resuits are described as a Level of Service (LOS) ranging from. <br />A to F and these letters serve to describe a ~,'ange of operating conditibns for different <br />b, pes of h~cilities. Levels of Service are calculated based on.the 2000.Highway Capacity <br />Manual, which defines the level of service, based on control delay. Control delay is the <br />delay experienced by vehicles slowing down fbi' a signal or stop sign, the wait throe at thc <br />signal or stop sign, and the time tbr the vehicle to speed up and get through the signal or <br />entei' into the traf'fic stream. The average intersection control delay is a volta'ne weighted <br />average of all delay t-'rom ali intersection approaches f'or signalized intersections. Level <br />of Service D ts commonly taken as m:~ acceptable ¢tesiga year LOS. The level of service <br />and its associated intersection delay for a signalized and unsignaIized intersection is <br />presented below. The delay for unsignalized intersections ts lower tbr each LOS <br />compared to sigmtlizcd intersections accounts for ~e t:'act that people expbct a higher <br />level of service when at a stop-conh'olled intersection. <br /> <br />Related LOS to Control Delay: <br /> <br />LOS <br /> <br />A <br /> <br /> Signalized Intersection <br />Control Dot.ay per Vehicle (se.e.). <br />~ 10 <br /> <br />Unsignalized In tcrsection <br />Control De!.ay per Vehicle (sec.) <br /><10 <br /> <br />B > [ 0 and _< 20 , >10 and _< 15 <br />C >20 and <35 >15 and_<25 <br />D >35 and < 55 >25 and < 35 <br /> <br /> >55 and _< 80 <br />F >80 <br /> <br />>35 and _.< 50 <br /> <br />>5O <br /> <br />Volume to Capacity Ratios <br /> <br />Volume to capacity ratio is the proportion of the amuat traffic utilizing the facility to the <br />l:acitity's physical ability to carry a specific maximum volume. "['his is calculated by <br />dividhng the total mfffic using the t~hcility by the capaci~ of the facility. This can then <br />determine ifa facitiB, is sufl:~cicnt to handle the traffic that is expected to be traveling on <br />it. A ratio greater than 1.00 predicts that the facility, will be unable to discharge alt of the <br /> <br />120 <br /> <br />Pulle Etomes Developmenl E,4 <br />Trq[fic £mpacl Sludy <br />CiO' o, f Rctn~,s'ey, ,dnO/¢~t Co'tinU, iWinnesola <br /> <br /> page 15 of 24 <br />Prepared by: <br />Bo/ton & ~l&nk, hw <br /> <br /> <br />