Tyre & Road Safety
Why tyres are the safety item you control most, plus night driving, wet weather, gravel roads and long-distance habits for South African conditions.
All of a car's safety electronics work through the tyres. Stability control, anti-lock braking and autonomous emergency braking can only use the grip the tyre provides, and a worn or under-inflated tyre hands the electronics less to work with in the moment they are needed most. Tyres are also the safety component owners control most directly: the pressures, tread depth and condition of four tyres decide braking distances on a wet highway far more than any badge on the boot.
Beyond tyres, South African road safety rests on a few practical habits. Long distances and heat cause fatigue on inter-city routes; unlit rural roads hide animals, pedestrians and broken-down vehicles at night; the first rain after a dry spell lifts oil off the road and makes it treacherous; and gravel changes how every safety system behaves. This topic gathers the tyre care and driving habits that make the most of a new car's safety equipment.
Tyre & Road Safety — questions
The questions people ask about tyre & road safety, answered plainly.
How much tread depth do tyres need to be safe?
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The legal minimum in South Africa is one millimetre across the tread, but braking performance in the wet falls away well before that. Many safety bodies recommend replacing tyres at around three millimetres for wet-weather grip. The tread-wear indicator bars moulded into the grooves show when a tyre has reached the point of replacement.
Does tyre pressure really affect safety?
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Yes, significantly. An under-inflated tyre flexes more, runs hotter, wears at the edges and can fail on a long, hot highway run. It also lengthens braking distances and makes the car less stable in a swerve. Over-inflation reduces the contact patch and grip. Checking pressures monthly against the door placard is the cheapest safety measure available.
How should I drive on gravel roads in a new car?
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Slow down well before you need to, because braking distances are much longer on gravel and stability control cannot create grip that is not there. Keep both hands on the wheel, avoid sudden steering, brake gently in a straight line, and leave a large gap behind other vehicles to avoid stone damage and dust. After a gravel trip, check tyres and the underbody for damage.
What is the safest way to handle a long inter-city drive?
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Plan a stop every two hours, share the driving where possible, and avoid driving through the small hours when fatigue and unlit roads combine. Check tyre pressures and fluids before departure, keep headlights clean, and use adaptive cruise control and driver-attention systems if your car has them, remembering that they assist an alert driver rather than replace one.
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