Accident cluster sites and fatal road accidents on the Welsh Trans-European Road Network: 2014 to 2016

Between 2014 and 2016 there were 41 accident cluster sites on the Welsh Trans-European Road Network (TERN). These contain 172 personal injury accidents and 17 of these were killed or seriously injured (KSI) accidents.

In North Wales

• In North Wales, there are 5 roads on the TERN route.
• There were 6 accident cluster sites which resulted in 25 personal injury accidents and no KSI accidents.
• The A55 had the largest number of cluster sites at 4, with no accident cluster sites on the A5, A483 and the A550.
• There were 9 fatalities reported on the TERN roads.

In South Wales

• There are 8 roads (9 different routes as the A40 is split into two sections) on the TERN route, 5 of which are in South-East Wales and 4 of which are in South-West Wales.
• There were 35 accident cluster sites which resulted in 147 accidents with a personal Injury and of these 17 were KSI accidents.
• The M4 had 16 accident cluster sites, which resulted in 63 personal injury accidents and of these 4 were classed as KSI.
• Apart from the M4, the A40 had the largest number of cluster sites at 5 and there were no accident cluster sites on the M48.
• There were 28 fatalities reported on the TERN roads.