Ordinance No. 20513 - Laserfiche WebLink

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Eugene Water & Electric Board (EWEB) Master Planned Development October 2012 Traffic Impact Analysis Year 2021 Total Traffic Conditions The total traffic conditions analysis forecasts how the study area's transportation system will operate with the traffic generated by the proposed EWEB redevelopment. The year 2021 background traffic volumes for the weekday a.m. and p.m. peak hours (shown in Figures 5 and 6) were added to the site - generated traffic (shown in Figures 10 and 11) to arrive at the total traffic volumes illustrated in Figures 12 and 13. INTERSECTION LEVEL OF SERVICE The weekday a.m. and p.m. peak hour turning- movement volumes shown in Figures 12 and 13 were used to conduct an operational analysis at each study intersection to determine the year 2021 total traffic levels of service. The results of the total traffic analysis shown in Figures 12 and 13 indicate that all of the study intersections are forecast to operate at acceptable levels of service during the weekday a.m. and p.m. peak hours, except 4 Avenue /Coburg Road. Appendix 'J" contains the year 2021 total traffic level -of- service worksheets. Coburg Road 14 Avenue Intersection The westbound right turn movements at the Coburg Road /4 Avenue intersection are projected to operate at level of service "D" 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. The westbound right turn movement has a high volume because it is the only direct access from the site to northbound Coburg Road, I -105, and destinations north of the Willamette River. As indicated in the existing conditions discussion, signalizing northbound and westbound movements at this intersection is warranted and would restore operations to an acceptable level of service in conjunction with providing dual right -turn movements westbound. This mitigation option would: Retain right -in /right -out turn movement restrictions; Provide dual right -turn lanes on 4 Avenue between the EWEB Headquarters Building and Coburg Road (approximately 125 feet of storage) 9 ; and Signalize westbound right turn movements on 4th Avenue and northbound through movements on Coburg Road (southbound movements would remain unsignalized and 9 Additional queue storage is not feasible without impacting the EWEB Headquarters Building or existing bicycle and pedestrian facilities at the intersection. l vz/� Kittelson & Associates, Inc. 46