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A4

A4 Traffic News

A4 Great West Road · London (Hyde Park Corner) → Bristol

A4 traffic at 06:35 on Monday 12 October: no major incidents reported — live National Highways updates every 5 minutes.

→ A4 eastbound traffic ← A4 westbound traffic
🔍
🟢 A-road Clear 🚨 0 incidents 🚧 2 roadworks · 1 soon ⏱ Updated 06:35
Regions: London, South East, South West
Home › Traffic › Roads › A4

🚨 Live A4 Incidents & Roadworks

Auto-refresh 3 min
🟢 Clear on the A4 📍 0 incidents · 🚧 2 roadworks
Share A4 status: 💬 📘 X
Closure
A4 westbound St Brendan's Roundabout to St Andrews Roundabout carriageway closure
from 21:00 Wed 14 Oct
Wed 14 Oct
📢
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🗺️ A4 Traffic Map — Where It's Happening

Tap a pin for full incident detail. Live positions from National Highways.

⚠️ Most Dangerous A4 Junctions

Based on DfT STATS19 police collision records. The A4 has 2,987 recorded collisions at 17 collision hotspots, involving 3,590 casualties (39 fatal). Take extra care here.

#1
nr M4
1,046 collisions · 1,215 casualties · 11 fatal · 192 serious
Severe Blackspot
#2
nr Marlborough
44 collisions · 58 casualties · 5 fatal · 9 serious
Severe Blackspot
#3
nr M25
360 collisions · 436 casualties · 4 fatal · 56 serious
Severe Blackspot
#4
nr Slough
280 collisions · 340 casualties · 4 fatal · 39 serious
Severe Blackspot
#5
nr Chippenham
116 collisions · 163 casualties · 4 fatal · 15 serious
Severe Blackspot
#6
nr Keynsham
268 collisions · 311 casualties · 3 fatal · 49 serious
Severe Blackspot
🔍 See the full A4 collision blackspot map →

🛒 Journey Essentials

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❓ A4 Traffic — Frequently Asked Questions

Q: Is the A4 closed today?

Any A4 closure appears in the live feed above within minutes of National Highways reporting it, including tonight's overnight roadworks closures.

Q: Is there traffic on the A4 today?

The live feed above shows every incident, delay, roadwork and overnight closure on the A4, updated every 5 minutes from National Highways.

Q: What is the worst time to use the A4?

The A4 is typically busiest during morning rush hour (07:00–09:30) and evening rush hour (16:00–19:30) on weekdays.

Q: Are there roadworks on the A4 right now?

There are currently 2 active roadwork schemes on the A4. Check the live feed above for exact locations and durations.

Q: What roads connect to the A4?

The A4 connects to: M4, M25, A406, A312, A329.

📊 A4 Status Summary

0
Active incidents
0
Severe/serious
2
Roadworks
06:35
Last updated
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ℹ️ A4 Road Details

From
London (Hyde Park Corner)
To
Bristol
Type
A-road
AM Rush
07:00–09:30
PM Rush
16:00–19:30

📍 Key A4 Locations

London Hammersmith Chiswick Brentford Hounslow Heathrow Slough Maidenhead Reading Bath Bristol

🔗 Roads Connecting to the A4

M4 M4 trafficM4 Motorway Live → M25 M25 trafficM25 London Orbital Motorway Live → A406 A406 trafficA406 North Circular Road Live → A329 A329 trafficA329 Road Live →

🛣️ A4 Services & Motorway Stops

No services directly on the A4. Browse all services →

🔗 Related Tools

🛣️My Commute — save your route NEW 🚧A4 Roadworks View → 🕵️Was I Affected? Check → 🔄Route Checker Plan → 📋Incident Archive Browse → 🗺️Live Map View →

📱 Follow A4 Updates

Daily A4 incidents, posted across all four channels.

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Junction

DfT STATS19 police collision records

0
Collisions
0
Fatal
0
Serious
0
Slight
🔍 Full blackspot map →
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