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! <br /> � Mr. Ryan Sass <br /> July 14, 2006 <br /> Page 4 <br /> � The Silver Lake Center development, with the credit for the existing uses, will generate 2,836 <br /> { average daily trips with 302 PM peak-hour trips (145 inbound/157 outbound). A <br /> � summary of the trip generation has been included in Tabie 3. The trip generation calculations <br /> have been included in the attachments. <br /> IThe tcip generation performed by Perteet did not include internal crossover reductions for trips <br /> � traveling between the office, retail and residential uses. GTC has cal�ulated the internal I <br /> crosser reductions, using standard ITE methodologies, to be 14% for the daily trip generation I <br /> and I S% for the PM peak-hour trip generation. These reductions have nut been included in <br /> � GTC's trip generation calculations for the level of service and access analysis to be <br /> conservative and to be consistent witl� Perteet's analysis. However, these industry standazd <br /> reductions have been included in the miti�ation calculations, which aze discussed later in this <br /> � report. <br /> Trip Distribution <br /> , Trip dis!ribu!ion and ass�gnments for the development are based the original PeReet traffic <br /> impact analysis. It is estimated that 80% of the developments Irips will travel along SR-527, <br /> I forty percent to ar:d from the north and forty percent to and from the south. Of the remaining <br /> 20%, five percent will travel to and from the east along 110`h Strzet SE and fifteen percent <br /> will travel to and from the west along 112`h Str�et SE. There was a discrepancy in Perteet's <br /> � trip distribution along SR-527 north of the development. This discrepancy has been corrected <br /> by GTC, but will have no impact on the ana(ysis in ihis update. The developments trip <br /> distribution, daily and peak-l�our traffic assignments have been included in Figure 3. <br /> � Intersection Level of Service Analysis <br /> � Turui�+g Nfovemeirt Y'olun+es <br /> � The study intersections have been analyzed for the baseline and with development conditions. <br /> Perteet used a 2-year horizon period, the ye : 2006, and GTC has used the same 2-year <br /> horizon period, the year 2008 for this update. <br /> � The 2008 baseline turning movemient volumes were calculated by applying an annually <br /> compounded growtl� rate to the ex�sting volumes. 'fhe gowth rate was calculated to be 4% <br /> � annually based on the growth from the 2004 volumes in ihe Perteet study to the 2006 volumes <br /> coil:cted for this update. The 2008 baseline volumes have been shown in Figure 4. The <br /> 2008 future with development volumes have been calculated by adding the developments trips <br /> r" to the 2008 baseline volumes. The 2008 future with development vohunes have been shown <br /> � in Eigure 5. <br /> I� � � � ��a <br /> RAFFIC <br />' ; Oa�3Md4Qa4� <br />