Two diesel-hauled carriage trains, the Capital Connection and the Northern Explorer, pass through the station but do not stop.

[4][5] Redwood is one of only two stations on the Paraparaumu Line not on track built by the Wellington and Manawatu Railway Company (WMR); the other is Takapu Road to the south.

The WMR built the original route of the NIMT between Wellington and Longburn and it was purchased by the New Zealand Railways Department in December 1908.

The platforms were staggered north and south of Tawa Street to avoid the excessive operation of the flashing lights and bells and barrier arms at the Tawa Street Level Crossing (so that the train would not keep the warnings operating when stopped at the station).

[8] In 2018 the installation of four gates which automatically locked when the alarms were actuated was approved, at a cost of $900,000 (see CCTV photo of child cyclist ignoring warnings).