Run as a pilot scheme last year, the 'Beep beep! Day' campaign is targeting nurseries, child-minders and other groups to run road safety awareness days from August to October.
Brake marketing manager Wendy Carter said that after successfully targeting nurseries last year, a decision was made to 'at least double' the number of participants.
'This year we are involving other groups apart from nurseries, and we've also teamed up with the National Day Nursery Organisation (NDNO),' said Carter.
'The NDNO is putting our Beep beep! Day logo on its literature, and we've placed inserts in Nursery News to generate further interest.'
The charity claims seven child pedestrians aged six or under are injured on UK roads every day - a statistic described by Brake chief executive Melanie Williams as 'heartbreaking'.
The number of organisations signed up to hold events has matched last year's figure. Brake is also targeting local press with media relations campaigns to coincide with regional activities.
Organisations that hold a Beep beep! Day event will receive guidelines and resources, including stickers, posters, activity sheets and a teaching pack, to help them organise road safety activities. The campaign is being run in partnership with last year's sponsor Green Flag Motoring Assistance.