volum es. It should be noted that generally a level of service worse than D will not be achieved unless the v/c ratio exceeds 1.00. For this reason, based on the v/c ratio criteria, the project list for the LOS D and LOS E standard are the sam e. The project list for the second-highest-hour standard includes fewer projects since the intersection volum es are lower. Table G-12 2023 PM Peak Hour Signaliz ed Intersections with Volume-to-Capacity Ratio Equal to or Exceeding 1.00 PM Peak Hour Standard 2nd Hour Standard Needs Mitigation w ith Needs Mitigation w ith Location V/C Ratio LOS D Standard LOS E Standard V/C Ratio LOS D Standard City Intersections Downtown M edford 4th at Central (1) 0.82 Yes Yes 0.73 Yes 4th at Riverside 1.22 Yes Yes 1.06 Yes South of Jackson Street Barnett at Black Oak 1.03 Yes Yes 0.97 No Barnett at North Phoenix 1.05 Yes Yes 0.96 No Highland at Siskiyou 1.16 Yes Yes 1.08 Yes Hillcrest at North Phoenix 1.24 Yes Yes 1.08 Yes Jackson at Crater Lake 1.24 Yes Yes 1.13 Yes Main at Columbus 1.11 Yes Yes 1.03 Yes Main at Ross 1.34 Yes Yes 1.19 Yes North of Jackson Street Biddle at McAndrews 1.05 Yes Yes 0.99 No Crater Lake at Delta Waters 1.25 Yes Yes 1.10 Yes McAndrews at Riverside 1.00 Yes Yes 0.83 No McAndrews at Royal 1.09 Yes Yes 0.94 No State Highw ay Intersections Highway 99 at South Stage 1.11 Yes Yes 0.93 No (2) Highway 99 at Garfield 0.92 No (2) No (2) 0.78 No (2) Highway 99 at Stewart 1.00 Yes Yes 0.93 No (2) Hwy 62 at Hwy 99/Hwy 238 0.98 No (2) No (2) 0.82 No Highway 62 at Poplar/Bullock 1.02 Yes Yes 0.96 No (2) Highway 62 at Delta Waters 1.37 Yes Yes 1.23 Yes Highway 62 at Cardinal 0.95 No (2) No (2) 0.84 No (2) Highway 62 at Vilas 1.04 Yes Yes 0.84 No (2) Highway 238 at Sage 1.09 Yes Yes 0.94 No (2) Intersections exceeding a v/c ratio of 1.00 20 20 9 Intersections exceeding ODOT’s standard 23 (2) 23 (2) 15 (2) Source: LOS Study , JRH T ransportation Engineering, 2003. (1) Simulation show s that the permitted left-turn phas e on the w estbound approach is not adequately served causing extended queues that block upstream intersections. It is assumed that an exclusive left-turn lane w ould be provided on this approach under a ll LOS standards considered. (2) The v/c ratios at these intersections are less than 1.00 but exceed the Or egon Highw ay Plan’s v/c-based standard and w ould require mitigation by ODOT . G-21

Transportation System Plan 2018-2038