The Craigieburn line is a suburban railway line in Melbourne, Australia, operated by Metro Trains Melbourne. It runs from the Flinders Street Station in the city center to Craigieburn, covering approximately 30 kilometers. The line serves several suburbs, providing essential public transport for commuters. Opened in stages between 1880 and 2007, the Craigieburn line has seen significant upgrades to improve service frequency and reliability. It features several stations, including Broadmeadows and Roxburgh Park, and connects with other lines, enhancing accessibility for passengers traveling throughout the Melbourne metropolitan area.