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Speed cameras finally working on one of UK's most dangerous motorways after two years - Mirror Online
Gwent Police - QUESTIONS ABOUT THE NEW M4 VARIABLE SPEED LIMIT??? We understand some drivers who use the M4 between J24 and J28 have lots of questions regarding the news of enforcement
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Average speed cameras: Do they work at night, can I dodge the fine, and other myths debunked by driving law expert - Berkshire Live
![Average speed cameras & sign on the M25 motorway during contra flow operation & because of road works widening construction site work in progress UK Stock Photo - Alamy Average speed cameras & sign on the M25 motorway during contra flow operation & because of road works widening construction site work in progress UK Stock Photo - Alamy](https://c8.alamy.com/comp/C9BJE5/average-speed-cameras-sign-on-the-m25-motorway-during-contra-flow-C9BJE5.jpg)