30 mph
Total stopping distance
23 m
about 75 ft · 6 car lengths
Thinking: 9 m
Braking: 14 m
Highway Code figures. In the wet, braking distance is at least double; on ice it can be ten times longer. Thinking distance stays the same — unless you're tired or distracted.
| Road | Car | Towing | Van |
|---|---|---|---|
| Built-up area | 30 | 30 | 30 |
| Single carriageway | 60 | 50 | 50 |
| Dual carriageway | 70 | 60 | 60 |
| Motorway | 70 | 70 | 60 |
Vans up to 7.5 tonnes. Signs showing a lower limit always apply.