There's an interesting section in the Horowhenua District Council Agenda for the 26 April 2023 meeting (link to 11MB PDF), Page 82 (my emphasis):
Speed Management Plan
Road Controlling Authorities across New Zealand are required under the Land Transport Rule: Setting of Speed Limits 2022 to develop and consult on Speed Management Plans (SMPs). SMPs are how Road Controlling Authorities contribute to the new process for setting speed limits, they set out changes to speed limits over the next 10 years, and if accepted by the Regional Transport Committee and the Director of Land Transport, will come into force.
For the three-year implementation programme, we are looking at focusing on reducing speeds around schools, speeds around marae, reducing speed limits in Manakau township, Ohau township and Waikawa Beach, as well as tidying up some of our rural speed limits (this will not change the posted speed limits).
A memo has been prepared for elected members outlining our proposed focus areas for the Speed Management Plan. We are starting engagement with iwi partners, schools and NZ Police during the key stakeholder engagement phase before undertaking community consultation in June/July. Theses timeframes cannot move as we need to be feeding into the Regional Speed Management Plan managed by Horizons.
The community has long asked for the speed limit in the village to be reduced, especially over summer, as many pedestrians, cyclists and horse riders use the roads. Perhaps this will come to pass…
