Nine-time Paralympic cycling champion Dame Sarah Storey is “not prepared to risk my life” by racing on open roads.
The majority of road races in the United Kingdom take place alongside regular traffic, with marshals marking the front and back of the field.
“You have to keep your wits about you and be prepared to meet a car coming head on when you cross that white line. That’s not ideal,” she told BBC Sport.
“You should be racing on closed roads all the time.”
She added: “That’s one of the big things I’d like to see change for women in the UK.”
There are 450 races planned on public roads in the United Kingdom in 2016, with another 1,077 taking placed on closed circuits, usually specifically designed tarmac tracks, but also including car circuits and airfields.
Storey, 38, narrowly missed out on selection for Great Britain’s Olympic team pursuit trio for London 2012, and won the national road race series the same year.
She said racing on open roads does not prepare riders for the realities of a professional career, citing “bigger security, motorbikes, that sort of thing”.