Residents of a Wellington suburb have vented their frustrations over squealing and screeching trains on the local rail line at a public meeting.
South-Korean made Matangi trains have been in use for about a year on the Johnsonville line and since then some people living nearby have complained about the high-pitched noise.
Representatives from Greater Wellington Regional Council and KiwiRail answered questions at a meeting at Ngaio Town Hall on Wednesday.
The rail line was described at the meeting as extremely challenging because of its curves and steep gradients.
Wellington Metro upgrade manager Michael McKeon says the company is testing an adhesive on the track which would reduce friction and reduce the squeal.
Next month it will test dampers designed to reduce wheel vibrations and the squeal noise.
Those at the gathering agreed to meet again in June, to hear about any progress.