"There's lots of speeding past our creche," she said.
"We want to promote safety."
The programme, in consultation with the community, placed three large Kids around - Slow Down billboards on the streets last week, featuring the faces of children from Ko Te Aroha.
The posters, placed at Johnstone/Clyde and both intersections of Church and Cameron, were photographed last year by then-Makoura College photography students Beau Elton and Brittany Leveridge.
Programme Kaitakawaenga Makuini Kerehi said Masterton District Council had started a conversation about safety for children on the east side.
"We did a community consultation a few years ago, and people asked about speed reduction."
She said judder bars were an obvious solution, but they were an inconvenience to regular drivers as well as speedsters.
"So this is the next best thing."
The children were joined on the walk by traffic sergeant Chris Megaw and Wairarapa Road Safety Council co-ordinator Bruce Pauling.
The walk concluded with a "bubble" party at the Te Awhina Cameron Community house on Stuart Cres.