Station code

In South Korea, station codes are purely numeric, to reduce the problem of language and writing system barriers.

For example, Seoul Metropolitan Subway's Singeumho station has the code of 538.

[8] In Sweden the code is in a few cases a single capital letter, such as M for Malmö Central Station.

[10] [11] Three-letter alpha codes (formerly called CRS codes - Computer Reservation System) are issued by National Rail which is responsible for railways in Great Britain.

In England, Scotland and Wales of the UK, railway stations are assigned three-letter codes and are issued by National Rail and are called the Computer Reservation System (CRS).