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M4
M4 Motorway
London (Chiswick) → Pont Abraham (Wales)
Clear 🚨 0 incidents 🚧 0 roadworks ⏱ Updated 3min
190 miles long
49 junctions
Regions: London, South East, South West, Wales
AM rush: 07:00–09:30 · PM: 16:30–19:30
HomeTrafficRoadsM4
🚨 Live Incidents Auto-refresh 3 min
🟢 Clear on the M4 📍 0 incidents · 🚧 0 roadworks
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🔢 Junction Status Tap to filter
J1 Chiswick & A4
J2 Brentford & A4
J3 Heston & A312
J4 Heathrow & A408
J4A Heathrow T2/T3 & T5
J4B M25 & Heathrow
J5 Langley & A4
J6 Slough & A355
J7 Slough & A4
J8 Maidenhead & A404(M)
J10 Reading & A329(M)
J11 Reading & A33
J12 Theale & A4
J13 Newbury & A34
J14 Hungerford & A338
J15 Swindon & A346
J16 Swindon & A3102
J17 Chippenham & A350
J18 Bath & A46
J19 Bristol & M32
J20 M5 & Bristol
J21 M48 & Severn Bridge
J22 M49 & Avonmouth
J23 M48 & Magor

🟢 Clear · 🟡 Delays nearby · 🔴 Severe/Crash · Status labels: 💥 CRASH · ❌ CLOSED · 🐌 SLOW · 🚧 WORKS · ⚠️ HAZARD · Tap to filter

⏰ Typical Daily Traffic Pattern

M4 is typically busiest 07:00–09:30 and 16:30–19:30 on weekdays.

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❓ M4 — FAQ

Q: Is there traffic on the M4 today?

Check the live incident feed above — updated every 3 minutes from National Highways. Roads are currently clear.

Q: What is the worst time to use the M4?

The M4 is typically busiest during morning rush hour (07:00–09:30) and evening rush hour (16:30–19:30) on weekdays.

Q: Are there roadworks on the M4 right now?

There are currently 0 active roadwork schemes on the M4. Check the live feed above for exact locations and durations.

Q: What roads connect to the M4?

The M4 connects to: M25, M32, M48, M5, A34, A46.

📊 Status Summary
0
Active incidents
0
Severe/serious
0
Roadworks
Last updated
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ℹ️ Road Details
Length
190 miles
Junctions
49
From
London (Chiswick)
To
Pont Abraham (Wales)
Type
Motorway
AM Rush
07:00–09:30
PM Rush
16:30–19:30
📍 Key Locations
London Slough Reading Newbury Swindon Bristol Cardiff Swansea
🔗 Connecting Roads
M25
M25
M25 London Orbital Motorway
Live →
M32
M32
Trunk road
Live →
M48
M48
Trunk road
Live →
M5
M5
M5 Motorway
Live →
A34
A34
A34 Trunk Road
Live →
A46
A46
Trunk road
Live →
🛣️ Services on the M4

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