Motorists using the M6 through the West Midlands are being warned they can face penalties for driving at 70mph or even slower, with tens of thousands fined in recent years for this reason.
How drivers can be fined for legal speeds
The crucial detail lies in the operation of smart motorways. While the national speed limit on motorways is 70mph, temporary lower limits are frequently enforced on these managed sections using digital signs on overhead gantries.
These variable mandatory limits, which can be set at 60, 50, or 40mph depending on traffic, weather, or hazards, are not merely advisory. Drivers are legally required to obey them.
Variable speed cameras are mounted on the same gantries to enforce these temporary limits. Consequently, a driver travelling at 65mph could be fined if the active limit displayed is 60mph. Theoretically, a motorist doing 45mph could be penalised if the limit in force is 40mph.
Key enforcement zones on the M6
Data reveals specific stretches of the M6 in the West Midlands where drivers are most frequently caught. The primary hotspots are:
- The section between junctions 7 and 8 near Great Barr.
- The stretch between the M54 exit slip road near Wolverhampton and junction 10 for Walsall.
It was recently revealed that some of these cameras have not always been functioning correctly, leading to some incorrect fines being issued.
Understanding variable speed camera operation
The RAC has provided clarity on how these systems work. A spokesperson explained: "Variable speed cameras work in a similar way to average speed cameras, but they’re unlikely to be in operation 24/7."
"They tend to be used on smart motorways when the speed limit is lowered to ease congestion or in the event of poor weather or some other hazard. The speed cameras are situated on the overhead gantries and the limit will be displayed on a series of signs."
The core message for drivers is clear: always observe the changing digital signs on smart motorway gantries, not just the static national limit. Compliance with the displayed variable limit is mandatory and enforced, ensuring safety and managing traffic flow, even if it means driving significantly below 70mph.
