More killed and injured is almost better say safety campaigners
Controversial 20mph speed limits in residential streets may not bring any significant improvement in road safety, a report published by the Department for Transport has found
An analysis of the UK's first city-wide scheme - in which the limit was lowered from 30mph to 20mph on all residential streets in Portsmouth, at a cost of £500,000 - found that it has not brought any significant reduction in the number of accidents.
The number of people killed or seriously injured on affected roads actually went up, not down, after the limit was lowered.
So that "significant improvement" and "significant reduction" actually turned out to be an increase - I don't know if it is a "significant" increase but stop using the bloody weasel words. It failed.