Applicant's Addendem to TIAR 12.12.2022

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KTL Kona Villas November 2021 Final TIAR Addendum E-B EMB" F=m Page International 12/12/2022 Innovate I Adapt I Sustain LOS D or better during the AM and PM peak hours, however the following Route 11 intersection movements operated at LOS E or worse: • At Hualalai Street(north): EB left turns in both peak hours • At Hualalai Street(south): WB left turns in both peak hours, and the WB right turn • At Puapuaanui Street: SB left turn in the AM and WB left turn in both peak hours • At Kuakini Highway: EB left turn in both peak hours • At Lako Street: EB left turn in the AM peak hour 1. Existing (2019) Condition Mitigation The following recommendations were made to mitigate the noted intersection movements: • As a result of signal warrants not being met, it was recommended that the intersections remain unsignalized and for future roundabout analysis to be done at both Hualalai Street intersections. • An acceleration lane was recommended for the westbound right turn from Hualalai Street (south) onto Route 11, similar to all other unsignalized intersections with Route 11 in the project area. • No change was recommended at the Puapuaanui Street intersection. • At Lako Street, the eastbound sight distance should be checked before considering before changing the Lako Street approaches to have permitted left turns. It was noted that following HDOT's Route 11 widening from Henry Street to Kamehameha III Road, all movements at Lako Street would operate at an acceptable LOS with its current split phasing. B. Future Transportation Projects The November 2021 Final TIAR identified noted transportation projects that would improve traffic operations throughout the study area: • Route 11 Widening from Henry Street to Kamehameha III Road • Alii Highway Extension • Lako Street Extension • Puapuaanui Street—makai leg expansion as part of the Pualani Makai project C. Future Conditions Analysis As a part of the November 2021 Final TIAR analysis, Phase 1 proposed a single vehicular access to the development through a full-access (left/right in/out)permitted, stop-controlled, intersection with Route 11 by 2024. The intersection design included a westbound left turn refuge lane onto Route 11. With the development of Phase 2, a secondary vehicular access to Kekuanaoa Place, which currently intersects Lako Street, would be added by 2029. 1. Future Traffic Operations and Mitigation The following recommendations were made to mitigate the noted intersection movements: • As a result of poor intersection traffic operations as single-lane roundabouts for all future years, it was eliminated as a recommendation for both Hualalai Street intersections. • Neither Hualalai Street intersections passed traffic signal warrants and therefore they were recommended to remain unsignalized. • Kuakini Highway did pass the peak hour signal warrant in 2024 even though the