Washington Post: Metro’s bus fleet reached a high level of reliability this summer as the arrival of scores of new buses reduced mechanical breakdowns, Metro officials said Monday. Metro has added 48 New Flyer diesel-electric hybrid buses to its fleet of more than 1,500 buses in recent months, helping reduce the average age of vehicles in the fleet from eight to seven years, officials said. In June and July, the bus fleet achieved its "highest reliability ever" when measured by the number of …