Editing Tube map (section)

===Lines or services===
The Tube map aims to make the complicated network of services easy to understand, but it is not possible to have complete information about the services that operate on each line.

Limited-service routes have sometimes been identified with hatched lines, with some complications added to the map to show where peak-only services ran through to branches such as that to [[Chesham tube station|Chesham]] on the Metropolitan line. The number of routes with a limited service has declined in recent years, as patronage has recovered from its early-1980s low. As there are now fewer restrictions to show, most of the remaining ones are now indicated in the accompanying text, rather than by special line markings.