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Location from the National Highways junction reference. Nearest towns: Horley, Crawley, Redhill, Reigate.
Wider area: counting every road within 3 miles — local streets, A-roads, everything — 964 collisions are on record, 6 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 M23 itself, within 2 miles of J9. 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 M23 J9 → 3 of 7 junctions on the M23 · see where it ranks nationallyM23 J9 is at Horley & Salfords. National Highways signs it as Gatwick South. The nearest town is Horley.
Live incidents for the whole M23 are listed on the M23 traffic page, updated every 5 minutes from National Highways.
Police STATS19 records show 45 collisions on the M23 within 2 miles of J9, including 0 fatal and 11 serious. Counting every road in the area, 964 collisions are recorded within 3 miles. That ranks it 266 of 554 UK junctions we hold collision records for.
Live incidents, roadworks and delays for the whole M23, updated every 5 minutes from National Highways.
🚗 M23 live traffic →