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<br />Attachment A - Corridor Congestion Summary <br /> <br />Central lane MPO State Highway Corridor Congestion Status Summary <br /> <br />This report provides a summary of 2002 and 2025 congestion status for each of the 10 <br />state highway corridors within the Central Lane MPO. For each corridor, the mobility <br />dependence is described and the existing mobility standard is stated. Summaries of <br />both the 2002 and 2025 conditions are provided noting where standards are exceeded <br />on a sub-corridor level. The Corridor summaries also include identification of where <br />shorter segments of sub-corridors exceed standards. <br /> <br />Interstate-5 <br />As might be expected, this is the roadway in the MPO with the greatest importance for <br />mobility dependent travel. It has the highest mobility score in each of the sub-corridors, <br />indicating that the largest volume of mobility dependent trips take place on this facility. <br />These mobility dependent trips also constitute a high percentage of the total volume on <br />each sub-corridor, from 70-1000/0. <br /> <br />The northernmost sub-corridor, Beltline to the north TMA border, has two mobility <br />standards as it crosses the UGB boundary - 0.7 for rural interstate, and 0.8 for urban <br />interstates. <br /> <br />2002 Conqestion Status: <br />All sub-corridors pass the standard based on the VMT-weighted V/C ratio of each sub- <br />corridor. <br /> <br />Individual segments of the sub-corridor "South TMA boundary/30th Ave" fail the standard <br />based on VMT-weighted V/C ratio:: <br />AM northbound <br />PM northbound, southbound <br /> <br />This sub-corridor has rural mobility standard of 0.7. If the mobility standard was <br />matched to the standard inside the UGB (0.8), then this sub-corridor would fail the <br />standard only in the PM southbound direction between 30th Ave and OR58 exit. <br /> <br />2025 Conqestion Status: <br />In 2025 under the RTP-Financially Constrained scenario, only the sub-corridor from <br />Franklin to Beltline meets the standard, based on the peak hours VMT-weighted V/C <br />ratios. (However, there are segments of this sub-corridor which do not meet the <br />standard (i.e., the maximum V/C on one or more links in the sub-corridor exceed the <br />mobility standard)). <br /> <br />The table below is based on examining the V/C results for the AM and PM periods of <br />the 2025 RTP- Financially Constrained scenario. It notes where the corridor meets the <br />performance standard (~) and also where a segment within that corridor may fail (*). <br />Shaded cells indicate that the sub-corridor exceeds the existing standard for that time <br />period. <br /> <br />Page 9 of 18 <br />