Children from a certified child care facility called Kirari Kodomoen have taken action to promote traffic safety. This effort coincides with a change in speed limits on residential roads. The speed limit has been lowered to 30 kilometers per hour.

Further details about this initiative are available from the source. The children's actions are part of a broader effort to raise awareness about traffic safety in the community.

The certified child care facility where the children are from is involved in this traffic safety campaign, but more information about their specific activities and goals can be found through additional sources.