The Northern Ireland Railways network consists of approximately 220 route miles. NIR network is divided into the various lines, known as; Dublin Line, Bangor Line, Larne Line, Londonderry Line, Portadown/Newry Line and Portrush Line. The link to the route map can be seen on Translink Website. NIR has 17 staffed stations and 5 staffed halts throughout the network; all lines offer a combination of express services and trains that stop at each halt and station, with up to 6 and 7 trains operating per hour at peak times on key commuter lines.