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Difficulty: MediumMotorcyclists

You are driving behind a motorcyclist on a wet road. Why might the rider steer around metal drain covers and painted road markings?

  1. A
    To intentionally induce a minor skid to help cornering
  2. To prevent their tyres from losing grip on smooth, slippery surfacesAnswer
  3. C
    To move temporarily into your vehicle's blind spot
  4. D
    To warm up their tyre rubber and displace standing water from the tread

Answer

Motorcyclists avoid metal drain covers and painted road markings in the wet because these smooth surfaces become extremely slippery and can cause a sudden loss of traction.
In wet weather, metal surfaces such as drain covers, inspection hatches, and painted road markings become exceptionally slippery. Because motorcycles balance on two wheels with a relatively small contact patch, running over these surfaces can cause the tyres to lose grip instantly, leading to a slide or fall. Drivers following a motorcyclist in the wet must stay alert and leave extra following distance to allow the rider room to safely manoeuvre around these hazards.

Step-by-Step Solution

1
Identify the vulnerable road user and environmental conditions described in the scenario.
A motorcyclist is travelling on a wet road surface where metal drain covers and painted markings are present.
Two-wheeled vehicles rely on a narrow tyre contact patch for balance and traction, making them especially sensitive to road surface changes.
2
Analyse how water alters the friction of smooth road features compared to standard asphalt.
Smooth surfaces like metal covers and painted lines lose almost all grip when wet, creating a high risk of slipping.
Understanding why riders alter their road position allows following drivers to anticipate lateral movements and keep a safe separation distance.

Key Concept

Motorcycle stability and hazard avoidance on wet or low-grip road surfaces
Estimated Time:1m 0s
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Topics

Motorcyclists

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