Papua New Guinea Learner-Permit Knowledge Test study materials
Papua New Guinea Learner-Permit Knowledge Test study resources

The Slippery Bend and the Skid

Papua New Guinea Learner-Permit Knowledge Test · Put your knowledge to work in context.

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The Slippery Bend and the Skid

You are driving a rear-wheel-drive ute on a gravel road in the PNG lowlands. It has just started raining after a long dry spell, so the surface is greasy. You enter a left-hand bend at about 55 km/h on a road signed for 40 km/h. The back of the ute starts to slide outward to the right. You can feel the steering go light. There is a steep drop-off on the outside of the bend and no guardrail. A logging truck is visible in the distance coming the other way.

1. What has happened and what is the correct immediate response?

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The rear of the ute has lost grip and is sliding outward - an oversteer skid, made likely by too much speed for the bend, a greasy gravel surface, and a light rear end.

Correct immediate response:

  1. Ease off the accelerator - do not stamp on the brake.
  2. Steer smoothly in the direction the rear is sliding (into the skid) to bring the vehicle back in line.
  3. Look where you want to go, not at the drop-off.
  4. Avoid sudden inputs. Sharp braking or steering on gravel will worsen the slide.
  5. Once grip returns, reduce speed gently and continue at a safe pace for the conditions.

Do not fight the slide with a hard correction - that risks a snap in the other direction.

2. Why was 55 km/h in a 40 km/h bend a poor decision, and what should have been different on approach?

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The 40 km/h sign is an advisory for the bend in good conditions. On greasy gravel it is already too fast, and 55 km/h is well beyond it.

What should have been different:

  • Slow before the bend, not in it. Braking while turning uses up grip you need for steering.
  • Read the surface: rain after a dry spell lifts oil and dust, making the road unusually slippery.
  • Account for the vehicle: a light rear-wheel-drive ute is prone to rear slip on gravel.
  • Leave margin for the drop-off with no guardrail and for the oncoming truck.

The lesson: speed must suit the surface and the bend, not just the sign.

3. The oncoming logging truck appears as you recover. How does that change your priorities?

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The truck raises the stakes because a slide into the opposite lane could be fatal.

Priorities now:

  • Regain control first, then stay well on your side of the road.
  • Do not accelerate to 'get past' - the truck is large and slow to stop.
  • Keep your speed down through the rest of the bend so a second slide does not put you in its path.
  • Watch for the truck's width on a narrow gravel road; give it room where safe.
  • If you cannot hold your line safely, slow further rather than risk drifting across.

Recovering from a skid is not the end of the hazard - the oncoming truck is the next one, and your speed must reflect that.