Requires a county with a population of no greater than three hundred thousand, in collaboration with the Hawaii Community Development Authority, to establish a Summer Streets Pilot Program that closes vehicular traffic and repurposes roads for pedestrian and cyclist use, outdoor events, and other community-driven activities. Requires the Hawaii Community Authority to select the county for the pilot program. Authorizes the county to consult with the Department of Health. Requires the county to submit an initial proposal to the Hawaii Community Development Authority. Requires a report to the Legislature. Appropriates funds. Effective 7/1/3000. (HD1)