A1(M) Junction 1 Traffic

🚨 Live at A1(M) J1 right now

Checked 14:18 · auto-refresh

✅Nothing reported at A1(M) J1 right now.

Straight from National Highways, re-checked every 3 minutes while this page is open.

All live A1(M) traffic →A1(M) northbound →A1(M) southbound →A1(M) roadworks →

Is A1(M) junction 1 closed? Quick answers

Checked 14:18 on Tuesday 3 November 2026.

Is A1(M) junction 1 closed right now?

No. Nothing is closing the road at A1(M) junction 1 at 14:18.

Is A1(M) junction 1 closed tonight?

No. No closures are planned at A1(M) junction 1 tonight (Tue 3 Nov, 18:00 to 06:00).

Tonight: every A1(M) closure ›

Is A1(M) junction 1 closed this weekend?

No. No closures are planned at A1(M) junction 1 this weekend (Fri 6 Nov 18:00 to Mon 9 Nov 06:00).

This weekend: every A1(M) closure ›

Is there an accident at A1(M) junction 1 today?

No. No collision has been reported at A1(M) junction 1 since midnight.

A1(M) accidents today and yesterday ›

Answers use official data only: the National Highways live incident feed and their planned closure report. A closure is counted here when National Highways name this junction or a stretch that runs through it.

🗺️ Where A1(M) J1 is

Location from the National Highways junction reference. Nearest towns: South Mimms, Potters Bar, Borehamwood, Barnet.

📍 Heading to… from A1(M) J1

Also near this junction

Hatfield House Heritage · Hatfield, Hertfordshire 5 miles north in a straight line 🧭 Directions Hertfordshire traffic

St Albans Cathedral Heritage · St Albans, Hertfordshire 6.5 miles north-west in a straight line 🧭 Directions Hertfordshire traffic

Hertfordshire Zoo Zoo & wildlife · Broxbourne, Hertfordshire 7.5 miles north-east in a straight line 🧭 Directions Hertfordshire traffic

Vicarage Road Stadium · Watford, Hertfordshire 8.5 miles west in a straight line 🧭 Directions Hertfordshire traffic

Warner Bros. Studio Tour London Attraction · Leavesden, Hertfordshire 8.5 miles west in a straight line 🧭 Directions Hertfordshire traffic

Tottenham Hotspur Stadium Stadium · Tottenham, Greater London 9 miles south-east in a straight line 🧭 Directions Greater London traffic

Places and the junctions they are reached from are kept by our team; distances are measured in a straight line from the junction, not along the road.

⚠️ Collision record on the A1(M) at J1

69Collisions

3Fatal

10Serious

113Casualties

Around the middle

Ranked 183 of 556 UK junctions on record · 6 of 19 on the A1(M)

Wider area: counting every road within 3 miles — local streets, A-roads, everything — 1,605 collisions are on record, 19 of them fatal. That figure follows how built-up the area is, so it is shown for context and is not what the ranking uses.

Department for Transport STATS19 police collision records on the A1(M) itself, within 2 miles of J1. This is the free summary — the full breakdown by severity, weather, road surface, time of day and individual record is in the blackspot report.

📊 Full collision analysis for A1(M) J1 → 6 of 19 junctions on the A1(M) · see where it ranks nationally

❓ A1(M) J1 — Frequently Asked Questions

Where is A1(M) junction 1?

A1(M) J1 is at South Mimms & Potters Bar. National Highways signs it as South Mimms. The nearest town is South Mimms.

Is there an accident at A1(M) J1?

No — as of 14:18 National Highways list nothing at A1(M) J1. This page re-checks their live feed every few minutes, 24 hours a day.

Is A1(M) junction 1 closed?

No closure is listed at A1(M) J1 as of 14:18.

How many accidents happen at A1(M) junction 1?

Police STATS19 records show 69 collisions on the A1(M) within 2 miles of J1, including 3 fatal and 10 serious. Counting every road in the area, 1,605 collisions are recorded within 3 miles. That ranks it 183 of 556 UK junctions we hold collision records for.

What is near A1(M) junction 1?

Within 15 miles of A1(M) J1: Hatfield House (heritage, Hatfield), about 5 miles north in a straight line; St Albans Cathedral (heritage, St Albans), about 6.5 miles north-west in a straight line; Hertfordshire Zoo (zoo & wildlife, Broxbourne), about 7.5 miles north-east in a straight line; Vicarage Road (stadium, Watford), about 8.5 miles west in a straight line; Warner Bros. Studio Tour London (attraction, Leavesden), about 8.5 miles west in a straight line; Tottenham Hotspur Stadium (stadium, Tottenham), about 9 miles south-east in a straight line.

🚨 Live A1(M) traffic

Live incidents, roadworks and delays for the whole A1(M), updated every 5 minutes from National Highways.

🚗 A1(M) live traffic →

↔️ Next junctions

J2
Hatfield & Welwyn Garden City →

📍 Towns near this junction

South Mimms 0.1 mi Potters Bar 1.8 mi Borehamwood 3.3 mi Barnet 3.3 mi

🔢 All A1(M) junctions

J1 J2 J3 J4 J5 J6 J7 J8 J9 J10 J56 J57 J58 J59 J60 J61 J62 J63 J65

🆘 Broken down near A1(M) J1?

Car recovery near this junction - local firms you can call 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.

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