 Other "infrastructure renewals" on the line include three bridges with timber elements and track renewal (including in the Rimutaka Tunnel) but no signals renewal.Passing loops at Carterton and Woodside had previously been removed, leaving Featherston with the only loop between Upper Hutt and Masterton; the Carterton loop may need reinstating at some time for more frequent trains.The "infrastructure spendup" announced on 30 January 2020 included passing loops at Carterton, Featherston and Maymorn and a second platform at Featherston but not the proposed hybrid trains.