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M23 traffic at 20:05 on Sunday 18 October: 1 live incident (1 severe/serious).
From National Highways' closure report, in their words. Times can change - check before you set off.
Tap a pin for full incident detail. Live positions from National Highways.
🟢 Clear · 🟡 Delays nearby · 🔴 Severe/Crash · Status labels: 💥 CRASH · ❌ CLOSED · 🐌 SLOW · 🚧 WORKS · ⚠️ HAZARD
A red or orange junction border marks a STATS19 collision blackspot. Tap any junction for its own page — live incidents and full collision history. Tap the funnel to filter the list above.
The M23 carries up to 119,367 vehicles a day at its busiest stretch (near J9), including 5,892 HGVs — the 17th busiest motorway in Britain. Official Department for Transport counts, 2025.
| Road | Busiest stretch | Vehicles/day | HGVs/day | HGV share |
|---|---|---|---|---|
| M25 | near J14 | 212,636 | 14,853 | 7% |
| M6 | J20–J21 | 187,521 | 23,492 | 12.5% |
| M56 | J3–J4 | 179,634 | 7,547 | 4.2% |
| M1 | near J9 | 162,446 | 19,151 | 11.8% |
| M8 | J16–J17 | 158,065 | 7,214 | 4.6% |
| M4 | near J4 | 156,491 | 6,249 | 4% |
| M23 ◀ | near J9 | 119,367 | 5,892 | 4.9% |
Measured from 68 incidents recorded on the M23 since February 2026: the riskiest window is 08:00–11:00, when 24% of incidents start. Right now (20:00) you're outside the peak window.
| Hour | Incidents | Share |
|---|---|---|
| 00:00–01:00 | 0 | 0% |
| 01:00–02:00 | 2 | 2.9% |
| 02:00–03:00 | 3 | 4.4% |
| 03:00–04:00 | 2 | 2.9% |
| 04:00–05:00 | 2 | 2.9% |
| 05:00–06:00 | 4 | 5.9% |
| 06:00–07:00 | 2 | 2.9% |
| 07:00–08:00 | 1 | 1.5% |
| 08:00–09:00 ◀ peak | 6 | 8.8% |
| 09:00–10:00 ◀ peak | 4 | 5.9% |
| 10:00–11:00 ◀ peak | 6 | 8.8% |
| 11:00–12:00 | 4 | 5.9% |
| 12:00–13:00 | 1 | 1.5% |
| 13:00–14:00 | 2 | 2.9% |
| 14:00–15:00 | 2 | 2.9% |
| 15:00–16:00 | 5 | 7.4% |
| 16:00–17:00 | 3 | 4.4% |
| 17:00–18:00 | 5 | 7.4% |
| 18:00–19:00 | 7 | 10.3% |
| 19:00–20:00 | 1 | 1.5% |
| 20:00–21:00 | 4 | 5.9% |
| 21:00–22:00 | 1 | 1.5% |
| 22:00–23:00 | 0 | 0% |
| 23:00–00:00 | 1 | 1.5% |
The places people drive to most, the M23 junction for each, and live M23 incidents nearby at 20:05.
UK's second-busiest airport; 42.8 million passengers in 2025
Seaside city with 11.4 million visitors in 2024
Based on DfT STATS19 police collision records. The M23 has 175 recorded collisions at 6 collision hotspots, involving 296 casualties (4 fatal). Take extra care here. Ranked by fatal, then serious collisions, then casualties - not by the number of collisions alone.
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Any M23 closure appears in the live feed above within minutes of National Highways reporting it, including tonight's overnight roadworks closures.
There is currently 1 active incident on the M23. The live feed above is updated every 5 minutes, 24 hours a day, from National Highways.
The M23 is typically busiest during morning rush hour (07:00–09:00) and evening rush hour (17:00–19:00) on weekdays.
Roadworks and overnight closures on the M23 are listed above and at /traffic/m23/roadworks/, taken from the National Highways daily closure report.
The M23 connects to: M25, A23, A264.
Each side has its own live page: the M23 northbound and the M23 southbound each list every accident, breakdown, closure and roadworks on that carriageway, updated every 5 minutes, 24 hours a day, from National Highways. The panel at the top of this page shows both sides at a glance.
Official Department for Transport counts (2025) record 119,367 vehicles a day on the M23's busiest stretch (near J9), 5,892 of them HGVs. The full breakdown and comparison chart are in the traffic statistics section above.
The M23 has the 17th busiest motorway stretch in Britain at 119,367 vehicles a day (DfT 2025), behind the M25's 212,636 a day at the top.
Measured from 68 incidents recorded on the M23 since February 2026, the riskiest window is 08:00–11:00, when 24% of incidents start. The quietest is 22:00–01:00. Incidents on the M23 typically clear in about 36 minutes.
London Gatwick Airport is linked directly to the M23 at junction 9 by a dedicated airport spur, signed for both terminals.
Daily M23 incidents, posted across all four channels.
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Broken down on the M23? Send one free request and local firms are told.
On a motorway? If you can, get onto the hard shoulder or into an emergency area, leave by the left-hand doors and wait behind the barrier. Stuck in a live lane: stay in the car with your seatbelt on and hazard lights on, and call 999.