Whanganui District Council and Horizons Regional Council want more people to use the urban bus service to get around town.
The councils are asking for feedback on local transport use ahead of a trial of a new bus route scheduled for 2023.
"Along with encouraging active transport like cycling and walking, improving public transport services so that more people use them is a key action towards reducing the effects of climate change," Whanganui District Council's climate change adviser Caroline Arrowsmith said.
"Transport accounts for 27 per cent of the council's carbon emissions, and petrol car use is, for many of us, our largest contributor to emissions."
The 2022 Whanganui Public Transport Service survey encourages people to consider the bus as a way to reduce their carbon footprint. Participants are asked to identify barriers, such as accessibility or information gaps, that currently prevent them from using local buses.