The NW3 Green School Runs (NW3 GSR) team launched its bus service for private school parents on a rainy Monday in Hampstead.
Less than six months after the group formed, the first buses taking children from the surrounding area to schools in Hampstead are now running.
The initiative is designed to improve air quality by reducing the number of journeys towards NW3 taken by parents.
Valeria Pensabene from NW3 GSR said: "The launch went really well, notwithstanding the driving rain."
She added parents could try out the bus service - which is being administered by start-up Zeelo - for one day free, using a discount code "NW3", ahead of the full roll-out next September, and reception-age children were also now being accepted on the buses.
The initiative, currently involving six NW3 private schools, has been backed by both local MP Tulip Siddiq and Camden Council.
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules here