Devon and Cornwall have been rated among the worst counties for road collisions in the country.
Elsewhere in the West Country, the number of fatal and serious crashes in Bath and North Somerset has risen by a quarter in recent years.
The RSF says there have been 29 fatal crashes since 2013.
fatal crashes since 2013 in Bath and North Somerset.
The RSF is calling for more money to be spent on dangerous roads.
The Road Safety Foundation's report in partnership with Ageas found that there were still over 6,000km of unacceptably high-risk roads that need to be tackled in order to reduce the number of deaths down towards zero.
Despite calls from the foundation, the Government insists it is already giving a record amount of funding to councils.