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Hazard Perception · Topic 3 of 6 · ~1 min read

Space Management

Seeing a hazard early only helps if you have room to respond. Time to notice is one half of safety; space to act in is the other. The handbook calls the space around your car the space envelope, and managing it is a skill you practise every second: what kind of road you are on, how much room you have on each side, what to do when someone takes it, and where you would go if the road ahead suddenly closed.

In this lesson you'll learn

  • How to recognise open, closed and changing conditions, and what each asks of you
  • The space envelope: the space ahead, behind and to each side, and which part you control
  • How to recover space when someone takes it
  • How to position the car so you can see and be seen
  • Why you should always keep somewhere to go, and how to use it
  1. 1. Open, Closed and Changing ConditionsClassify the road ahead as open, closed or changing, and adjust speed and attention to match.
  2. 2. The Space EnvelopeDescribe the four sides of the space envelope, and manage each, especially the space behind, which you cannot control directly.
  3. 3. Recovering SpaceRebuild the space envelope when it is taken, using the handbook's space-recovery steps, without turning the loss into a contest.
  4. 4. Position to See and Be SeenPosition the car and use lights and eye contact so that you can see hazards and other road users can see you.
  5. 5. An Escape RouteKeep a space to move into if the road ahead closes, and know when steering into it beats braking.