The O&M of 126 million or 10.5 monthly is provided their ridership projections are met.   Nothing about the rail has been accurate to date and I can assure you that the rosy ridership projections made by HART will not come to pass.

They predict that there will be 120,000 daily weekday riders on the rail.   Keep in mind that there are about 200,000 daily bus riders but that includes all routes around the entire island of Oahu.   Also keep in mind that no public rail project has ever met their ridership projections.