Wellingtonians are encouraged to plan ahead if they are travelling on Monday between 9.30am and 3pm, when bus and rail staff will be attending their respective union meetings.

"We encourage our passengers, particularly those who live in and around the Hutt Valley, to travel earlier in the morning or later in the day to avoid any disruptions to their usual services."

The Tramways Union meeting would not affect school services, or bus services run by other operators.