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 The following TIARs and updates have been submitted to date in support of this project: 1. Final Royal Vistas TIAR (SSFM, May 2020) o Submitted in support of an Environmental Assessment(EA). o The following recommendations were made at the intersections with Route 11: ■ At Palani Road, continue to monitor traffic operations and signal timing. ■ At Henry Street, changing the existing split phasing can improve traffic operations. ■ At Hualalai Street (north), consider a future traffic signal or single-lane roundabout. ■ At Hualalai Street (south), remain unsignalized and continue to monitor traffic operations. ■ At Puapuaaui Street, continue to monitor existing traffic and adjust signal timing if needed. ■ At Royal Vistas Roadway, a connection to Kekuanaoa Place should be completed before the completion of Phase 2. ■ At Kuakini Highway, consider a future traffic signal or single-lane roundabout. ■ At Lako Street, consider changing the Lako Street approaches from the existing split phasing to protected phasing. The widening of Route 11 from Henry Street to Kamehameha III Road included in the 2035 Transportation Plan should be completed. ■ At Kamehameha III Road, continue to monitor traffic operations and signal timing. o TIAR was reviewed and commented on by the County of Hawaii (COH) twice during the initial review period. o A memo from COH Department of Public Works (DPW)was responded to. 2. Final Royal Vistas TIAR (SSFM, February 2021) o Following the approval of the Finding of No Significant Impact (FONSI) of the EA, the TIAR was submitted to COH. o The following changes to the recommendations from the previous submittal are: ■ At Henry Street, continue to monitor traffic operations and signal timing. ■ At Hualalai Street (north), consider a future traffic signal if needed, but priority should be given to traffic moving along Route 11. The single-lane roundabout analysis was shown to operate poorly and was removed from the recommendation. ■ At Kuakini Highway, consider a future traffic signal. The single-lane roundabout analysis was shown to operate poorly and was removed from the recommendation. ■ At Lako Street, consider alternate phasing for the Lako Street approaches. The widening of Route 11 from Henry Street to Kamehameha III Road included in the 2035 Transportation Plan should be completed. o Comments received from COH DPW Traffic Division and addressed to the Planning Department in a Review Comment Form dated August 3, 2021 were received and responded to (attached at the end of this document).