The Denver Post reports, “In a move that could shift the dynamics of carpools across the Denver metro area, the popular High Occupancy Vehicle rules that let two occupants ride free on Express Lanes through often-congested segments of U.S. 36 and Interstate 25 will require at least one more rider to claim the privilege. The change has a name: HOV 3.” The report adds, “The state hopes the new rule will encourage commuters to take steps to ensure the quickest and least expensive travel, which could mean taking a bus, such as the Flatiron Flyer on U.S. 36, that has access to the express lanes; paying the premium to use the Express Lanes; or finding another rider or two to comply with the free HOV conditions.”