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Location from the National Highways junction reference. Nearest towns: Hemel Hempstead, St Albans, Radlett, Watford.
Wider area: counting every road within 3 miles — local streets, A-roads, everything — 1,133 collisions are on record, 18 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 M1 itself, within 2 miles of J7. 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 M1 J7 → 3 of 53 junctions on the M1 · see where it ranks nationallyM1 J7 is at Hemel Hempstead & Redbourn. National Highways signs it as Hemel Hempstead. The nearest town is Hemel Hempstead.
Live incidents for the whole M1 are listed on the M1 traffic page, updated every 5 minutes from National Highways.
Police STATS19 records show 129 collisions on the M1 within 2 miles of J7, including 1 fatal and 21 serious. Counting every road in the area, 1,133 collisions are recorded within 3 miles. That ranks it 19 of 554 UK junctions we hold collision records for.
Live incidents, roadworks and delays for the whole M1, updated every 5 minutes from National Highways.
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