The worst 20 stretches of road in the country for crashes are all in Dublin, according to a garda rating system used to decide the location of speed cameras.
The road with the most accidents is the R111 which runs between Islandbridge and Irishtown (and extended to Dublin Port as a safety camera zone) and follows the Grand Canal for most of its route.
A total of 118 crashes were recorded on a 9.9km stretch of the road over a three-year period, including two fatal crashes and 18 serious accidents.
The second-most high-risk road is a 5.4km stretch of the R148 between the Chapelizod Bypass along the Liffey Quays to the Customs House, which has a 30kph speed limit for large parts of the route.
It was the location for a total 99 accidents between 2016 and 2018, including 17 serious crashes but no fatalities.
The third most dangerous road is a 21.4km stretch of the M50 between Junction 3 (M1 interchange) and Junction 11 (N81-Tallaght), where a total of 116 collisions were recorded.
An analysis of a new updated list of more than 1,300 safety camera zones, which come into effect from 6am today reveals the roads where motorists are most likely to be involved in accidents are all in the capital.
The list, published by An Garda Siochana, highlights how some of the busiest routes in the city for traffic have the highest number of collisions.
Gardai grade the risk level of speed zones based on the number of fatal, serious and minor collisions which occurred on them over a three-year period.
While some roads might have been the location of fewer accidents, they are considered more high risk because of the comparatively higher number of fatal and serious crashes.
The list of roads where Go Safe vans operating speed cameras will be located was based on all recorded road collisions between 2016 and 2018.
One of the most dangerous stretches of road in the country outside Dublin is the N4 between Longford and Roosky where four fatal accidents were recorded over three years.