The Overtaking Lorry on the Coastal Road
You are driving a small hatchback northbound on the Philip Goldson Highway at about 50 mph. The road is a two-lane highway with a solid double yellow line down the centre for the next 400 metres, then a broken line. A large sugar lorry is ahead of you, travelling at about 40 mph and swaying slightly within its lane. You have been following it for two minutes at a gap of about 15 metres. The lorry's rear lights are dim and one brake light appears not to work. There is a light rain falling and the road surface is damp. Behind you, a red SUV is following closely, about 10 metres back.
1. Should you attempt to overtake the lorry now? Explain your reasoning.
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No. Three things rule it out. First, the solid double yellow line means no overtaking; you must wait for the broken line 400 metres ahead. Second, you cannot see far enough past the lorry to know the oncoming lane is clear, and the lorry is swaying, suggesting the driver may not be fully in control. Third, the damp road lengthens your stopping distance and reduces grip for any sudden manoeuvre. Add the red SUV 10 metres behind you: if you brake or pull out, that driver has almost no reaction time and may rear-end you. The safe plan is to drop back, increase your gap to at least four seconds, and wait for a clear, legal opportunity with good visibility.
2. Your 15-metre gap is too close. What gap should you keep, and why does the lorry's condition matter?
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At 40 mph you cover roughly 18 metres per second, so a 15-metre gap is under one second, far too close, especially in rain. Aim for at least four seconds in wet conditions, which at 40 mph is about 72 metres. The lorry's dim lights and failed brake light mean you may not see it braking in time, so a larger gap gives you reaction room. The swaying suggests the load may be shifting or the driver is tired; either way, stay back where you can see and be seen. A bigger gap also lets the red SUV behind you see your intentions and gives you room to slow gradually rather than brake sharply.
3. The red SUV is tailgating you. How should you manage that hazard while still dealing with the lorry?
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Do not brake suddenly to 'teach' the SUV driver a lesson, and do not speed up to escape. Increase your own gap to the lorry gradually so that any braking you need is gentle and predictable, giving the SUV driver time to react. Signal early for any lane change. If the SUV remains dangerously close, look for a safe place to pull over and let it pass, or change lanes when legal and clear. Keep your speed steady and avoid sudden moves. The goal is to remove the pressure from behind without creating a new hazard in front.