 By 2016, the introduction of electric multiple units with more rapid acceleration, EM/ET class from 1982 and Matangi FP class from 2010, had reduced rail travel time for stopping trains between Wellington and Porirua by another 6 minutes to 21 minutes, despite extra stops at Redwood, Linden, and Kenepuru which each add 48 seconds to the travel time.For non-stopping trains, the time had reduced to 17 minutes.Off-peak passenger services between Wellington and Porirua stations ran every thirty minutes with more frequent services during peak periods and a less frequent during the night.