Honolulu Rail Transit is a proposed 20-mile elevated rail line that will connect West O'ahu with downtown Honolulu and beyond. The rail line aims to improve mobility and reduce traffic congestion in Honolulu through a reliable and high-capacity public transit system. It is expected to carry up to 90,000 riders per day by 2030 and reduce future traffic congestion by 11% by taking cars off the road. The rail line will cost billions to construct but will be funded through a combination of federal funding, state funding, and surcharges on residential and commercial property taxes.