Sometimes, train and tram lines, stations, bus stops or interchanges need to close for maintenance, cleaning or upgrading.
Planned closures are generally part of a long-term project and means passengers can't use the affected buses, trains or trams.
Planned maintenance is a short-term piece of work that is usually done overnight so it doesn't impact on passenger services. There might be general traffic detours, temporary road closures, or extra light or noise while work is being done.
Anything affecting the normal running of buses, trains and trams – either planned or unplanned – is listed on our service disruptions page.