Ordinance No. 20513 - Laserfiche WebLink

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Eugene Water & Electric Board (EWEB) Master Planned Development Traffic Impact Analysis Coburg Road /3 rd Avenue Intersection October 2012 The eastbound right turn movements at the Coburg Road /3rd Avenue intersection are projected to continue to operate at level of service "F" during the weekday a.m. peak hour after site development. The movement will be well under capacity and does not warrant signalization. Further, the EWEB site redevelopment is not anticipated to add any trips to the failing eastbound right -turn movement (Few, if any, EWEB trips are likely to travel north from the site to reach the failing eastbound right -turn movement to travel south when they have other alternative routes to travel south. Even in the event that EWEB traffic does utilize the right turn movement, there is capacity to accommodate additional right -turn traffic). Coburg Road 14 1h Avenue Intersection The westbound right turn movements at the Coburg Road /4th Avenue intersection are projected to operate at level of service "E" during the weekday a.m. peak hour. During the p.m. peak hour the intersection is projected to continue to operate over capacity and at level of service "F" without mitigation. As discussed in the 2021 total traffic analysis, adding a second westbound right -turn lane in conjunction with signalizing the northbound and westbound movements at this intersection restore the intersection to an acceptable level of service. Table 8 summarizes the operations under the mitigation alternative. A traffic signal with dual westbound right -turn lanes will operate at acceptable levels of service for the Central Area Transportation Study area (LOS E) during the weekday a.m. and p.m. peak hours; however, westbound right -turn and northbound through movements will continue to operate over capacity (v /c > 1.0) during the peak 15 minutes. Appendix `N" contains the year 2031 mitigated total traffic level -of- service worksheets. Table 8 4 Avenue /Coburg Road Intersection Mitigation (2031 Total Traffic Conditions) Weekday AM Peak Hour Weekday PM Peak Hour Mitigation Delay LOS V/C Delay LOS V/C Traffic Signal 1,2 ' Signal warrants 1, 2, and 3 are met at this intersection based on the Manual on Uniform Traffic Control Devices (MUTCD) (Reference 4). Z Free right -turn phasing was assumed on the northbound approach. I / Kittelson & Associates, Inc. 56