A review is beginning of the use of US-style yellow school buses in the UK.
There are various local schemes in the UK already
The review was set up by transport provider FirstGroup but will include schemes run by other operators as well as its own.
The group's Yellow Bus Commission is chaired by former education secretary, Labour MP David Blunkett.
He said parents felt yellow buses were safe and they helped to cut congestion on the school run.
Mr Blunkett told BBC Radio Five Live: "Even though the Americans have not paid a lot of attention to energy conservation and climate change I think it actually does help.
"And in Britain of course we have the school run and people in different parts of the country - because half-term varied - will have seen over the last fortnight the difference it makes when the children aren't going to school.
"You can actually, people have been able to drive to work in half the time."
In July FirstGroup published research suggesting 86% of British parents would like to send their children to school in dedicated buses.
There are or have been a number of yellow bus schemes around Britain, but no universal policy on the issue.
Yellow buses are characterised not so much by their colour as by the principle of being used only for school runs, picking up and dropping children locally.
In the US they are also mobile traffic lights, making it an offence to overtake them when their red lights and "stop" signs are lit.