How Many People Die on UK Motorways Each Year?

Quick answer: 88 people were killed on motorways in Great Britain in 2025, the Department for Transport's final figures show — only 6% of all road deaths, even though motorways carry 21% of the country's traffic. With 905 people killed or seriously injured and 5,003 casualties of all severities, motorways remain the safest roads in Britain for every mile driven.

Motorway deaths in 2025

The DfT's final Reported Road Casualties figures for 2025, published on 30 July 2026, give the full motorway picture:

• 88 people killed on motorways in 2025
• 905 killed or seriously injured (KSI)
• 5,003 casualties of all severities
• 71.9 billion vehicle miles driven on motorways

Motorways account for the smallest share of casualties of any road class. By contrast, A-roads saw 800 deaths — 52% of the national total — and other roads saw 650. For a motorway-by-motorway breakdown of the M25, M1, M6, M4, M62 and M5, see Which UK Motorway Has the Most Accidents?.

The safest roads per mile travelled

Raw counts flatter busy roads and punish quiet ones, because they ignore how much driving each road carries. Per mile driven, the gap is stark:

• Motorways: about 1.2 deaths per billion vehicle miles (88 deaths over 71.9 billion miles)
• Rural roads: about 6.0 per billion miles (923 deaths over 155.1 billion miles)
• Urban roads: about 4.4 per billion miles (527 deaths over 119.2 billion miles)

A mile driven on a rural road is roughly five times as deadly as a mile on a motorway. The DfT's own summary of the 2025 figures puts it plainly: motorways were the safest roads per mile travelled in 2025.

Where the deaths actually happen

The other 94% of road deaths happen elsewhere, and the pattern barely changes from year to year:

• Rural roads claimed 923 lives in 2025 — 60% of all road deaths, against 45% of traffic
• A-roads claimed 800 lives, the largest share of any road class
• Single carriageways saw 1,187 deaths — 77% of the national total
• Excluding motorways, the most deaths (508) happened on roads with a 60 mph limit

Most casualties overall happen on urban roads (62% of the total), but collisions on fast rural roads are far more likely to kill. That is why the roads that feel quiet can be the most dangerous.

Why motorways are safer

Motorways are engineered to remove the most dangerous situations on the road network. There is no oncoming traffic, no pedestrians or cyclists, no sharp bends, and no junctions where streams of traffic cross each other. Everyone travels in the same direction, separated by a central reservation, and vehicles join only through slip roads.

That design shows up directly in the numbers: motorways carried more than a fifth of all traffic in 2025 but produced only 4% of all casualties. The casualty rate per mile has fallen for every road class since 2009, with motorways consistently the lowest of all.

What still kills 88 people a year

Safe does not mean harmless. Eighty-eight deaths is still nearly two people every week, and collisions at motorway speeds carry enormous energy, leaving little margin when something goes wrong. Heavy goods vehicles share the carriageway with cars and motorcycles at 70 mph, and a breakdown or stopped vehicle on a live lane is one of the most exposed positions on the road network.

The direction of travel is encouraging, though. Motorway deaths edged down from 91 in 2024 to 88 in 2025, while motorway traffic grew to 71.9 billion vehicle miles. The motorway share of all road deaths held steady at 6% — a small fraction of the 1,538 people killed on Britain's roads in 2025, even though more than a fifth of all driving happens on motorways.

Live reports from today's roads are on today's accident map, and police-reported collision figures for every council area are on the UK road accidents page.

How these numbers were counted

The figures come from the Department for Transport's Reported Road Casualties Great Britain, final results for 2025, published 30 July 2026 — accredited official statistics based on police-reported injury collisions (the STATS19 system). KSI figures are adjusted for changes in how some police forces record injury severity. Slight injuries are known to be under-reported to the police, so trends matter more than any single year's count. The statistics cover Great Britain (England, Scotland and Wales), not Northern Ireland. These are final figures; they supersede the provisional 2025 estimates published in June 2026.