Safe vehicle handling in poor atmospheric conditions requires drivers to correctly adjust auxiliary controls and lighting according to legal rules and changing visibility. Match each fog-related driving condition with the correct driver action required by the Highway Code.
- Driving on an unlit road where fog reduces forward visibility to 70 metresOperate high-intensity fog lights together with dipped headlights
- Driving through a patch where fog thins out and visibility extends beyond 100 metresSwitch off fog lights immediately to prevent dazzling other road users
- Driving in cold, damp fog causing rapid misting across the inner surface of the windscreenEngage windscreen demister, heater, and air conditioning controls to clear the glass
- Driving in dark, foggy conditions where forward view is limitedUse dipped headlights rather than main beam to avoid blinding reflected glare
Answer
Match the condition of visibility below 100 metres with activating high-intensity fog lights and dipped headlights; match visibility clearing beyond 100 metres with switching off fog lights; match internal condensation with setting the windscreen demister and climate controls; and match navigating in dark fog with using dipped beam instead of main beam.
Each scenario directly aligns with the UK Highway Code guidance for fog: visibility under 100 metres warrants fog light activation with dipped beam; clearing conditions mandate turning fog lights off to prevent dazzling; interior misting requires active demisting controls; and driving through fog at night requires dipped headlights to prevent reflected glare.
Step-by-Step Solution
Key Concept
Highway Code rules on lighting selection, visibility thresholds (Rule 226/236), and demister control during foggy conditions
Estimated Time:1m 15s