The Dublin Suburban Rail () network, branded as DART/Commuter, is a railway network that serves the city of Dublin, Ireland, most of the Greater Dublin Area and outlying towns. The system is made up of five lines: Northern Commuter - Dublin Pearse to Dundalk (with one peak time train to Dublin in the morning and an evening train back to Newry) every weekday. South Eastern Commuter - Dublin Connolly to Gorey. South Western Commuter - Dublin Heuston to Portlaoise/Newbridge. Grand Canal Dock to Hazelhatch and Celbridge/Newbridge via the Phoenix Park Tunnel. Western Commuter - Dublin Pearse / Docklands to Longford/M3 Parkway. Dublin Area Rapid Transit (DART) - Bray Daly/Greystones to Howth/Malahide. In 2018, Commuter services carried 14.6 million passengers, with DART carrying 20 million. Apart from the service to Newry, the lines are owned and operated by Iarnród Éireann. The Luas light rail system is not part of this network and is not operated by Iarnród Éireann. As of 2018, the Luas Red Line between Connolly and Heuston Stations is the only one featured on DART network maps, although the Green Line terminates at Broombridge station since late 2017. Since 2015, Iarnród Éireann has conducted an extensive crackdown on fare evaders by increasing ticket checks on all services in the Greater Dublin Area. These include members of staff checking tickets and Leap cards both on-board its trains or at the stations. Service frequency Services run from 05:40 to 01:11 from Monday to Saturday and 07:55 to 01:05 on Sunday. However, the frequency varies by line, with the DART service being more frequent (every 10 minutes off-peak, every 4 minutes peak) and services to outer stations being less frequent (up to once every hour off-peak). Fewer trains run on Sunday than any other day, and special timetables may be made for public holidays. There are no services on Christmas Day or St Stephen's Day. Rolling stock As of 2018, the majority of rolling stock used on the non-DART services are 29000 Class diesel multiple units, with 22000 Class DMUs in use on all South Western Commuter services and some Western and Northern Commuter services. The 29000 Class DMUs are fitted with interior LEDs and automated information systems. 8100 Class electric multiple units form the backbone of the DART services, with 8500, 8510 and 8520 Classes also in use. Locomotive hauled services are no longer used on any DART/Commuter services, although these