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A4
🟢 A-road

A4 Traffic News

A4 Great West Road · London (Hyde Park Corner) → Bristol
Clear ⏱ Updated 09:36

A4 traffic at 09:36 on Thursday 15 October: no major incidents reported — live National Highways updates every 5 minutes, 24/7.

A4 traffic now: accidents & incidents by direction at 09:36
→ A4 eastbound traffic✅ No incidents reported ← A4 westbound traffic✅ No incidents reported
🚨 0 incidents 🚧 0 roadworks
🔍
Regions: London, South East, South West
Home › Traffic › Roads › A4

🚨 Live A4 Incidents & Roadworks

Updates every 5 min
Share A4 status: 💬 📘 X
No live incidents on the A4 right now — checking National Highways every 5 minutes, 24/7.
📢
Spotted something on the A4?
Warn other drivers in real time — thousands check these pages every day
💥 Crash⚠️ Hazard⛔ Closure🐌 Queue
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🗺️ A4 Traffic Map — Where It's Happening

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

📍 Heading to… off the A4

The places people drive to most, the A4 junction for each, and live A4 incidents nearby at 09:36.

Airport

Heathrow Airport

Heathrow, Greater London
🛣️ Via the A4
✅ No A4 incidents reported within 3 miles

83.9 million passengers in 2024; £7 charge to use terminal drop-off areas

🧭 Directions Greater London traffic
Racecourse

Newbury Racecourse

Newbury, Berkshire
🛣️ Via the A4
✅ No A4 incidents reported within 3 miles

M4/A4 traffic enters via Hambridge Road; A339 traffic via Racecourse Road

🧭 Directions Berkshire traffic

⚠️ 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. Ranked by fatal, then serious collisions, then casualties - not by the number of collisions alone.

#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

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.

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, 24 hours a day, from National Highways.

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.

Are there roadworks on the A4 right now?

Roadworks and overnight closures on the A4 are listed above and at /traffic/a4/roadworks/, taken from the National Highways daily closure report.

What roads connect to the A4?

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

Is there an accident on the A4 eastbound or westbound today?

Each side has its own live page: the A4 eastbound and the A4 westbound 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.

📊 A4 Status Summary

0
Active incidents
0
Severe/serious
0
Roadworks
09:36
Last updated
🆘 Broken down on the A4?
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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.

🎵 TikTok 33,000+ › ▶️ YouTube 2,000+ › 📸 Instagram 1,500+ › 📢Report an incident›

Junction

DfT STATS19 police collision records

0
Collisions
0
Fatal
0
Serious
0
Slight
🔍 Full blackspot map →
Beat the jam

Know before you go on A4

Set it up once. We'll tell you what's happening while you can still turn off.

🛣️ Save your commuteWe watch your route for you NEW 🔔 Early-warning alertsA heads-up before you set off ✈️ Telegram alertsFree · one tap to join 🎵 Daily on TikTok33,000+ followers

🚛 Car recovery along the A4

Broken down on the A4? Pick the nearest town and call a local firm direct:

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.

🆘 Send one free requestAll breakdown services