6.3.- 6.6. SR 02-09-2004 - Laserfiche WebLink

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David Pertl - 7 - December 22, 2003 A diverted-link trip reduction was applied to through traffic volumes on TH 169 for the proposed development. This reduction accounts for vehicles already on TH 169 that will stop at this specific site. Since these vehicles are already using the roadway, they are not considered to be new trips. These trips are subtracted from the through volumes on TH 169, but are accounted for entering and exiting the site. Based on information from the 1998 ITE Trip Generation Handbook, a 30-percent reduction could be used for the proposed restaurants and retail. Therefore, a 30-percent diverted-link reduction was applied to TH 169. The directional trip distribution for the proposed site-generated trips is based on existing travel patterns in the area (see Figure 4: Directional Distribution). The combination of background traffic and trips generated by the proposed development result in year 2006 build traffic volumes shown in Figure 5. Year 2006 Build Conditions To determine how w~ll the existing roadway system will accommodate the year 2006 build traffic forecasts, an operations analysis was conducted for the, p.m. peak hour. All signalized intersections were analyzed using the Synchro/SimTraffic software. The unsignalized intersections were analyzed using the Highway Capacity Software. Existing intersection geometrics, traffic controls and signal timing was assumed for the analysis of all key intersections, with the exception of the new proposed intersections. The results of the analysis shown in Table 3 indicate that all key intersections will operate at an acceptable LOS D or better during the p.m. peak hour under year 2006 build conditions, with existing and proposed traffic controls and geometrics. Table 3 Year 2006 Build P.M. Peak Hour Capacity Analysis Level of Service Results Intersection Level of Service P.M. Peak TH 169/197th Avenue C TH 169/193rd Avenue D 197th Avenue/Irving Street/Proposed Holt Street * A/B Jackson Street/Holt Street * A/C Proposed Holt Street/Bank-Access * A/B Proposed Holt Street/North-Access * A/A Proposed Holt Street/South-Access * A/B Indicates an unsignalized intersection. The overall LOS is shown followed by the worst approach LOS.