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Question

Difficulty: MediumIce and Snow Conditions

Traffic is moving slowly on an ungritted rural road that has frozen overnight. By how much can your stopping distance increase on this icy surface compared to normal dry conditions?

  1. A
    Up to twice as far
  2. B
    Up to four times as far
  3. Up to ten times as farAnswer
  4. D
    Up to twenty times as far

Answer

Stopping distances on ice can be up to ten times greater than on a dry road.
The correct answer is that stopping distances can increase by up to ten times on icy roads. Ice and compacted snow drastically reduce tyre grip on the road surface, meaning a vehicle requires vastly more distance to come to a complete stop compared to dry conditions.

Step-by-Step Solution

1
Identify the specific road hazard described in the question
The road surface is covered in ice and freezing conditions
Recognising the severe hazard is necessary to determine the appropriate driving safety margins.
2
Apply the official Highway Code stopping distance multiplier for ice and snow
Stopping distance on ice can increase by up to ten times compared to normal dry conditions
Severe loss of tyre grip dramatically extends the braking distance required to bring the vehicle to a stop.
3
Select the answer option matching this Highway Code rule
Up to ten times as far
Drivers must leave at least ten times the normal separation distance to avoid collisions on icy surfaces.

Key Concept

Stopping Distances in Ice and Snow
Estimated Time:45s
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Topics

Ice and Snow Conditions

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