Laserfiche WebLink
Traffic Operations Analysis <br /> <br />Analysis was completed ibr. the 2005 and .2007 baseline scenarios for both the A,M. and <br />P.M. peak hours. Analysis was also completed fbr all the Build and Full Build scenarios. <br />The analysis was performed using the methodology of the 2000 Highway Capacity <br />Manual tN'ough SYNCHRO, a traffic analysis software program by T?affiewm'e, Results <br />of the analysis are displayed as measures of effectiveness. Measures of effectivene{;s <br />display quanti'tative information about the perfommnce of an intersection or network of <br />intersections.. The primary measures that are used in this study are'level of service and <br />volume to capacity ratios. <br /> <br />Level of Service <br /> <br />The operational analysis results are described as a Level of Service (LOS).ranging from <br />A to F and these letters serve to describe a range 0foperating c0nditib6i for different <br />types of hcilities, Levels of Service are calculated t$ased 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 for a signal or stop sign; the wait time at the <br />signal or stop sign, and the time tbr the vehicle to speed up and get through the signal or <br />enter into the traffic stream. The average intersection control delay is a volume weighted <br />average o fall delay fi'om all intersection approaches for signalized intersections. Level <br />et' Service D is commonly taken as an acceptable design year LOS. The level of service <br />and its associated intersection delay tb'r a signalized and unsignalized intersection is <br />presented below. The delay for unsignalized intersections is lower ibr each LOS <br />compared to signalized intersections accounts for the fact that people expect a higher <br />[eve[ of service when at a stop-controlled intersection. <br /> <br />Related [,OS to Con~9.1..Delay: <br /> Signalized Intersection <br /> <br />LOS <br /> <br />A <br /> <br />Contro. 1 Delay p~r Vehicle (sec.) <br /> <10 <br /> <br />Unsignalized InterseCtion <br />Control Delay Per Vehieie (see.) <br /> _di0 <br /> <br />B >10and <20 >10and ~< 15 <br />C >20 and _< 35 >15 and _<25 <br />D >35 and < 55 >25 and < 35 <br />E >55 and < 80 >35 and'< 50 <br />F >80' >50 <br /> <br />Volume to Capacity Ratios <br /> <br />Volume to capacity ratio is the proportion of the aclual' traffic utilizing the facility to the <br />f'acility's physical ability to can'y a specific maximum volume. This is calculated by <br />dividing the total traffic using the fkcility by the capacity of the facilky, This can then <br />determine ifa facility is sufficient to handle the traffic that is expected to be ta'aveting on <br />it. A ratio greater than 1.00 predicts that the facility will be unable to discharge alt of the <br /> <br />Pzdle Homes Deveh~pmenl EA <br />TraJ/ic bnpac/ Stu;O '," <br />CiO, of Ramsey, Anoka C'o'tmty, MinnesoIa <br /> <br /> page 75 °f24 <br />Prejvared by: <br />Belfort & Menk &c <br /> <br /> <br />