Mr Mata said the switch could be as simple as walking to the dairy to get some milk or taking children for a ride to the park on bicycles.
``I had met a woman who lived in Stordford Lodge in the west end of Hastings city and she used to drive 90 seconds to the hospital where she worked.
``We suggested if she walked the distance she would feel much better and she did, and has been walking to work every since.
``That's one example of how we could get hundreds of people making that switch and realising how easy it is just to walk or cycle across town rather using the car.''
Mr Mata said it was hoped once people gave the week-long Trip Switch a go, they'd decide to continue walking and cycling regularly.
Hawke's Bay Regional Council, which takes care of the Hawke's Bay Trails, Napier City Council and the Hawke's Bay District Health Board, were also putting their support behind Trip Switch.
To sign up go to: www.tripswitch.co.nz