Ordinance No. 20513 - Laserfiche WebLink

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Eugene Water & Electric Board (EWEB) Master Planned Development October 2012 Traffic Impact Analysis Year 2031 Background Traffic Conditions The year 2031 background traffic analysis identifies how the study area's transportation system will operate without the proposed EWEB redevelopment. This analysis accounts for traffic attributed to planned developments within the study area and includes general growth in the region, but does not include traffic from the proposed site redevelopment. PLANNED DEVELOPMENTS AND TRANSPORTATION IMPROVEMENTS Conversations with City of Eugene staff identified no additional long -term transportation capacity improvements or development activity in the site vicinity. TRAFFIC VOLUMES Year 2031 traffic volume projections were derived from LCOG's year 2031 travel demand model for the study area. Unlike the year 2021 analysis, which was based on assumed annual growth rates, the LCOG 2031 model is predicated on specific growth and development assumptions city -wide. The LCOG traffic model assumes some redevelopment of the EWEB site in 2031. Background traffic volumes for the year 2031 analysis were developed in part by subtracting trips originating from and terminating at the EWEB site zone from the 2031 model link volumes." The 2031 a.m. and p.m. peak hour background traffic volumes are summarized in Figures 14 and 15. to The 2031 model also assumes a significant shift in northwest bound traffic from Broadway Street and High Street to Hilyard Street and 6 Avenue compared to the 2004 model (which does not include Hilyard Street). This shift is not supported by current traffic counts. As a result, a one percent annual growth rate was used to estimate traffic volumes on 6th Avenue and at the 8th Avenue / Hilyard Street intersection. A minimum one percent annual growth rate was also applied to movements on High Street to ensure that background 2031 volumes were not lower than estimated background 2021 volumes. (This was the average annual growth rate derived from the 2031 model volumes provided by LCOG.) 11 Model link volumes were adjusted and converted to turning movement counts based on a comparison to LCOG's base year 2004 model volumes, LCOG year 2031 projections, and 2011 turning movement counts using the methodology documented in NCHRP Report 255. I FZ/i Kittelson & Associates, Inc. 50