Thousands caught speeding on Swansea and Port Talbot roads — including one driver at 111mph in a 50 zone
More than 96,000 drivers were issued Notices of Intended Prosecution (NIPs) for speeding in South Wales over the past year — and several of the worst-affected roads are in Swansea and Neath Port Talbot.
Among the most striking figures was a driver clocked at 111mph on the M4 at Junction 41 Pentyla–Seaway Parade Bridge westbound, where the speed limit is just 50mph. The offence, recorded in January 2025, was one of the five worst speeding incidents in the region.
The M4 may be a 50mph zone with average speed cameras at Junction 41 – but one driver was clocked doing an unbelievable 111mph in January 2025.
(Image: Google Maps)Gors Avenue among South Wales’ top speeding hotspots
In Swansea, Gors Avenue junction Dewi Terrace in Townhill saw 4,340 speeding offences recorded in 2024/25 — placing it third on the list of South Wales’ worst roads for speeding.
The stretch is home to a fixed speed camera and has been the subject of local campaigns to raise the limit back to 30mph. While part of Gors Avenue (between Townhill Road and Carmarthen Road) has since reverted to 30mph, the section where these offences were recorded remains at 20mph.
Other Swansea locations in the top 20 include:
- B4295 Swansea Road, Waunarlwydd – 3,702 NIPs
- Llangyfelach Road (junction Parkhill Road) – 3,295 NIPs
- Mumbles Road, Blackpill (westbound) – 1,174 NIPs
Each of these locations is monitored by fixed speed cameras. Llangyfelach Road, in particular, has seen controversy — with campaigners calling for the 20mph limit to be raised and a previous incident where the speed camera was cut down by vigilantes using an angle grinder. Police later offered a £1,000 reward for information about the attack.
VIDEO: Vigilantes cutting down the Llangyfelach Road speed camera
Top 20 roads for speeding offences in South Wales
RankRoadCountyNIPsFixed Penalties1A410 Swansea Road, Merthyr TydfilMerthyr Tydfil8,7703,3812A48 Western Avenue j/w Excelsior RoadCardiff6,1572,2343Gors Avenue j/w Dewi Terrace, TownhillSwansea4,3401,5124B4295 Swansea Road, WaunarlwyddSwansea3,7021,4845A4061 Bagan Street, TreherbertRhondda Cynon Taf3,4121,2386Llangyfelach Road j/w Parkhill RoadSwansea3,2951,1167Berw Road (SB)Pontypridd2,3398258Circle Way West j/w Ael-y-BrynCardiff2,3327949Cemetery Road, PorthRhondda Cynon Taf1,96681710A470 Manor Way j/w Caegwyn RoadCardiff1,87866811A470 Northern AvenueCardiff1,87668812A473 Cowbridge Road j/w Coychurch Road (SB)Bridgend1,74958013Newport Road j/w Claremont AvenueCardiff1,73060014M4 Port Talbot (WB)Neath Port Talbot1,52680415Cowbridge Road, Talbot Green (SB)Rhondda Cynon Taf1,36452516Berw Road (NB)Pontypridd1,33048317M4 Overbridge nr Groesfaen J33–J34Rhondda Cynon Taf1,26455818Hirwaun Road j/w Cemetery Road (NB)Rhondda Cynon Taf1,20843719A48 Newport Road nr Cardiff Garden CentreCardiff1,20470620Mumbles Road, Blackpill (WB)Swansea1,174329
M4 Port Talbot also among worst for speeding
The M4 westbound at Port Talbot recorded 1,526 speeding offences last year, placing it in the top 20. The stretch is monitored by a fixed camera and has long been a focus for enforcement due to high traffic volumes and safety concerns.
The data, compiled by Legal Expert using South Wales Police figures, shows a 57% increase in speeding notices compared to the previous year. In 2023/24, the force issued 61,390 NIPs. That figure rose to 96,368 in 2024/25 — equating to over £9.6 million in potential fines.
The worst speeding offence overall was 121mph on the A48 at Stormy Down, Bridgend — more than double the 50mph limit.
Worst recorded speeds in South Wales
RankSpeedLocationCountyLimitDate1121 mphA48 Stormy Down (EB)Bridgend50 mphJul 20242112 mphA470 Upper Boat (NB)Rhondda Cynon Taf50 mphAug 20243111 mphM4 J41 Pentyla–Seaway Parade Bridge (WB)Neath Port Talbot50 mphJan 2025=4107 mphM4 Overbridge nr Groesfaen J33–J34Rhondda Cynon Taf70 mphOct 2024=4107 mphM4 Overbridge nr Groesfaen J33–J34Rhondda Cynon Taf70 mphFeb 2024=4107 mphM4 Overbridge nr Groesfaen J33–J34Rhondda Cynon Taf70 mphNov 20245106 mphM4 Overbridge nr Groesfaen J33–J34Rhondda Cynon Taf70 mphOct 2024
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