M4 Junction 3: Cranford Parkway (A312)

Map of M4 Junction 3: Cranford Parkway — M4 Junction 3: Cranford Parkway. Map data © OpenStreetMap contributors. Map drawing © Corporate Ace Limited.

Junction 3 links the M4 to the A312 for Hayes and Feltham, with Cranford and North Hyde beside it. Southall is about two miles north-east. Hayes and Harlington station is about a mile north-west, and Osterley House about two and a half miles east.

If you are making deliveries around Hayes and Southall, starting a new job nearby, or visiting friends in Cranford for the first time, this page shows what is around the junction before you get there.

Check this junction now: live M4 speed flow map · latest M4 traffic news · M4 serious incidents · M4 accidents

M4 Junction 3 Now: Accidents, Incidents and Roadworks

Live traffic news at M4 Junction 3

Incidents and roadworks between Junction 2 and Junction 4 that we are aware of.

M4 Eastbound Jct 4B to M25 Clockwise and Anticlockwise Jct 15 exit slip road lane 1 closure

PlannedUpdateAnticlockwise Slip road closed

Time now: Wednesday, 21 October 2026, 21:22 (9:22pm)

20:56 (8:56pm)21 Oct 2026reported 25 min ago

Location: link road from M4 J4B eastbound to M25 J15
Direction: Anticlockwise
Lanes closed: Slip road closed
Reason: Repair work
Schedule: 22:00 (10pm) Wed 21 Oct 2026 → 05:30 (5:30am) Thu 22 Oct 2026

Forecast - not confirmed

🚧HA scheduled: 22:00 (10pm) Wed 21 Oct 2026 → 05:30 (5:30am) Thu 22 Oct 2026 starts in about 37 minutes · lasts ~7h 30m

+ 1 more near Junction 3 - see all the M4 traffic news →

This is the news for Junction 3 only, not the whole M4. For the rest of the motorway see all the latest M4 traffic news, the overhead signs and the speed limits in force now.

Updated 21:22 (9:22pm) Wed 21 Oct 2026

Live Traffic Speeds at M4 Junction 3

The speed strip below shows the M4 around this junction, both directions, from National Highways’ live data, checked every five minutes.

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60 mph +50–5930–4915–29under 15

closedM62connecting motorwayA6A road👈M1our site: tap for its map

services, on the side you can reach them

crashincidentqueueroadworksspeed limitspeed shown on the signsstop-startoverhead sign

reported by drivers, which can’t always be relied onconfirmed by National Highways

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Go to our live M4 traffic speed flow map ›

In an emergency call 999. To report a problem on a motorway, call National Highways on 0300 123 5000 (24 hours).

NOTE: The speed flow, overhead sign messages or other information shown on our live traffic speed flow map is updated every few minutes. We cross check the data and aim to provide warnings if there could be a delay or an inaccurate speed reading. There can be occasions, beyond our control, and despite our best efforts where the speed flow could be inaccurate. We cannot therefore guarantee the speed you can expect on any stretch of the motorway is always accurately shown. However we hope you will find our live traffic speed flow map a useful tool in trying to plan your journey. Safe driving.

All the latest M4 traffic news →Live M4 traffic speed flow map →

M4 J3 in Our Records

Incidents here, last 13 days31 collision, 2 breakdowns or obstructions

Typical time to clear21 minutesthe middle value of 3 cleared

Slowest daytime hour westbound17:00–18:00average 55 mph (typical 53 mph)

Slowest daytime hour eastbound08:00–09:00average 29 mph (typical 38 mph)

Most incidents we recorded at J3 were breakdowns or obstructions; 1 of 3 were collisions. Westbound, traffic usually keeps close to its typical speed through the day; the slowest hour is 17:00. Eastbound, the slowest daytime hour is 08:00, about 9 mph below the typical speed.

Average speed by hour of day at J3

our average, last 13 daysNational Highways’ typical speed

Westbound

Eastbound

Incidents per week at J3

collisionsbreakdowns and obstructions* part week: we started recording during it

The latest 3 here

Thu 15 Oct, 19:56 (7:56pm) Broken Down Vehicle ✓Reported by National Highways
M4 westbound between junctions J2 and J3
✓ Cleared after about 19 minutes
Wed 14 Oct, 17:36 (5:36pm) Brakes ✓Reported by National Highways
M4 westbound between junctions J2 and J3
✓ Cleared after about 21 minutes
Sat 10 Oct, 14:17 (2:17pm) Collision ✓Reported by National Highways
M4 eastbound between junctions J4 and J3
✓ Cleared after about 183 minutes (3.05 hours)

Built from our own records of National Highways’ live data for the M4 either side of J3: speeds from 13 days of five-minute readings, incidents from the last 13 days (we started recording incidents on 09/10/2026). Each incident is counted once. Updated every five minutes.

Junction M4 J3, Cranford Parkway
Roads at this junction A312
Nearest town Southall, 2.0 miles north-east
Junction before J2, Brentford, about 4.9 miles in a straight line
Junction after J4, Heathrow, about 1.9 miles in a straight line

Around M4 Junction 3: Cranford Parkway: Towns and Places on the Map

Map of the area within about 5 miles of M4 Junction 3: Cranford Parkway, showing the towns, villages, roads and places to visit — The area within about 5 miles of M4 Junction 3. Map data © OpenStreetMap contributors. Map drawing © Corporate Ace Limited.

Places on the Map Near M4 Junction 3
Place	What it is	From the junction
Hayes and Harlington	Railway station	About 1 mile north-west
Hounslow West	Railway station	About 1.5 miles south-east
Osterley House	Attraction	About 2.5 miles east
Uxbridge F.C.	Venue	About 2.5 miles north-west
London Heathrow Airport	Airport	About 2.5 miles south-west
The Courtyard Of Windows	Attraction	About 2.5 miles south-west
Hanwell Zoo	Attraction	About 3 miles north-east
World Rugby Museum	Attraction	About 4 miles south-east