March 2021 Update: NEW 50mph speed limit on M4 at Newport. The permanent limit between junction 24 for Coldra and junction 28 for Tredegar Park, which will be enforced with average speed cameras, will begin on Monday 15th March 2021.
VECTOR Speed Camera on M4 - junction 24 to junction 28, Newport (50mph)
This VECTOR speed camera is located on M4 - junction 24 to junction 28 near Newport in South Glamorgan, monitoring both directions traffic with a 50mph speed limit.
VECTOR average speed cameras sited in the overhead gantries between junction 24 (Coldra) to junction 28 (Tredegar Park) of the M4. Variable speed cameras cover traffic in both directions. Enforced speed limit can vary from 20mph to 50mph. Check overhead speed limit signs for roads currently enforced speed limit.
Camera type
Speed limit
50mph
Direction
Both directions
Road
M4 - junction 24 to junction 28
Nearest town
Newport
Last updated
15 May 2026
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Location reference: WASG044
⚠ Don't get caught at this location
Many drivers are caught at speed camera locations like this after misjudging the transition between speed limits or failing to notice the camera in time. A speed camera detector gives you advance warning before you reach known fixed and mobile camera locations.
About this speed camera location
Speed camera detectors - stay informed on every journey
A speed camera detector alerts you as you approach known fixed and mobile camera locations like this one - giving you time to check your speed before you reach the enforcement zone. Speed camera detectors are completely legal in the UK. All detectors are available from ActiveGPS.co.uk.
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Caught speeding at this location?
If you have been caught speeding at or near this location, the guides below explain what happens next, what your options are, and how the penalty system works in the UK.
Caught speeding - what happens next?
The complete guide from NIP to fine, course, points and court
Notice of Intended Prosecution (NIP)
What the letter means, the 28-day deadline and what to do next
Speeding fines guide
Fixed penalties, Band A/B/C fines, court thresholds and what to expect
Speed awareness course
Eligibility, what to expect on the day and whether it affects your insurance
Penalty points and driving bans
How points work, how long they last and when a ban applies
Speeding and car insurance
When to declare points, how much premiums increase and for how long
VECTOR average speed cameras
This location uses a VECTOR average speed camera system.
It calculates your average speed over a stretch of road rather than at a single point.
Read more about VECTOR cameras and how average speed checks work.