Anglesey and Gwynedd speed camera locations for July
Speeding is one of the largest contributing factors to collisions on Welsh roads according to GoSafe - a partnership of authorities including the Welsh Government and emergency services.
Cameras are typically deployed to hotspots where accidents are common or safety is paramount, such as near schools.
Here are the locations in Anglesey and Gwynedd where mobile speed cameras will be in force in July:
Anglesey
A545, Menai Bridge
A4080 Brynsiencyn Road (near Lon Pwllfanogl), Llanfair PG
A4080 Brynsiencyn Road (30mph section), Brynsiencyn
A5025, Pentraeth
A5025, Benllech
B5110, Marian Glas
A5108 Moelfre
A5025, Cerrig-Man
A5025 Trgele, Cemaes Bay
A5025 Llanfaethlu
A4080, Engedi
A5114 Glanhwfa Road, Llangefni
Llangefni Link Road, Llangefni
A5, Gaerwen
Kelly's Farm, Llanddaniel Fab
Gwynedd
A4244, Pentir
Bangor Street, Y Felinheli
A487 Felinheli Bypass
B4366 Bethel Road, Bethel
B4366 Bethel Road, Caernarfon
A499, Pontllyfni
A487 North Road, Caernarfon
A4086, Nant Peris
B4417 (near Ysgol Gynradd Nefyn), Nefyn
B4413, Pen Y Groeslon
B4413, Rhoshirwaun
Lon Sarn Bach, Abersoch
A499 (near Fach Farm Caravan Park), Abersoch
A497 Lon Abererch, Pwllheli
A497, Pentrefelin
Ffordd Morfa Bychan
A498, Prenteg
A496, Llanfair
A470, Ganllwyd
Ffordd Ty'n Coed, Barmouth Road
A493, Arthog
A493, Ffriog
A487, Corris Uchaf
A493, Cwrt
B4391, Bala
A4212, Frongoch
GoSafe say vehicles are staffed by fully trained Police staff or Police Officers, who watch the speed of vehicles passing the vans.
Not only is speed dangerous but it can land you a fine and three points on your licence.
The minimum penalty for speeding is a £100 fine and three penalty points.
If police believe a vehicle is exceeding the speed limit, they use the on-board Speedscope equipment in order to verify and record it as evidence.
All offences are recorded onto digital storage cards and sent to the Central Ticket Office for processing.
Speedscope can be trained on vehicles up to 1,000 metres away, although most work is carried out far closer to the enforcement vehicle.
The time, date, speed, distance, site coding and whether the vehicle is travelling towards or away from the checkpoint is recorded on the image to produce to the offending driver when the penalty is issued.