“Previous research based on preliminary Garda crash scene reports estimated that excessive speed was a factor in 15% of fatal collisions.

“The report published today, using data from An Garda Síochána Forensic Investigation Files, shows that excessive speed plays a more significant role in collisions on our roads, accounting for one in three fatal collisions analysed between 2008 and 2012.

“The faster you drive, the more likely you are to kill or seriously injure yourself or someone else if you are involved in a collision. Slow down – drive at a speed that is appropriate to the conditions and your experience, and remember a speed limit is not a target.”