Temporary speed limits in force on the M23. No closures right now.
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Reported now
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Speed limits
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Planned
Overhead sign · M23
TO M25
11 MINS
M23 traffic update
What’s the traffic like on the M23 right now?
The M23 is running normally. Nothing is reported in the National Highways feed right now.
Updated at 07:22 · refreshes every 5 min
Accidents
Is there an accident on the M23?
No. Nothing unplanned is reported on the M23 right now: no collisions, breakdowns or obstructions in the National Highways feed. Nothing unplanned has been reported and cleared on the M23 since midnight either.
Powered by National Highways’ Transport Data Feeds
Typical weekday
When the M23 clogs up
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MovingBusySlowQuiet
The M23 is busiest around 16:00, and at the sensors along this route it keeps moving: even in that hour traffic averages 53.8 mph.
Typical weekday pattern from 5 National Highways roadside sensors along the route, June 2026. Bar height is traffic volume, colour is average speed. Overnight hours carry too little traffic to judge, so they are shown as quiet.
The M23 is short but dense: it carries almost all of Gatwick Airport's road traffic between the M25 at Merstham and Crawley. The smart-motorway section around J9 for the airport is the focal point, and problems on the M25 south-west quadrant back up onto it quickly. Live incidents and closures refresh every 5 minutes.