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Module 8: Speed limits and safe following distances

Speed limits

6 minLesson 1 of 2 Awaiting expert reviewLast reviewed: 29 September 2026

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What you will learn

Choose a speed that is both legal and safe for the conditions.

  • What a speed limit is
  • Common limits
  • Driving to the conditions

Limits are maximums

Law

A speed limit is the maximum legal speed on that road. You must never go faster. Often you need to go slower – for example in rain, fog, heavy traffic or near schools.

100
Speed limit 100 (simplified illustration)

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Drive to the conditions

Safe-driving advice

Choose a speed that lets you stop within the distance you can see is clear. Slow down in wet weather, fog, darkness, on gravel roads and where people are walking or cycling.

Illustrative only – real distances vary with the driver, vehicle and road.50 km/h dry50 km/h wet100 km/h dry100 km/h wet
Bars show that stopping distance gets longer at higher speeds and on wet roads.

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Knowledge check

A few quick questions – no timer, no pressure.

Question 1 of 3Original practice question

What is a speed limit?

Summary

  • A limit is a maximum, not a target.
  • Obey signed limits, including variable school limits.
  • Slow down for conditions.

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Sources Awaiting expert reviewLast checked: 29 September 2026

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