Overtaking a Cyclist on a Narrow Road
You are driving on a two-lane rural road with a 100 km/h limit. The road has a solid centre line and narrow shoulders. Ahead, a cyclist is riding about 40 cm from the left edge, travelling at roughly 25 km/h. You are doing 95 km/h and want to pass. Oncoming traffic appears intermittently around a gentle curve about 150 m ahead. There is a car behind you. The weather is clear and the road is dry. You have about 3 km before your turn-off.
1. Should you overtake now? Explain the factors.
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No. The solid centre line means you must not cross it to overtake, and the curve limits your view of oncoming traffic. At a closing speed of about 70 km/h, 150 m of visibility is not enough to guarantee a safe pass, especially with a car behind adding pressure. A safe overtaking gap needs clear sight distance well beyond the distance you will travel during the manoeuvre.
The better choice is to slow to a safe following speed, keep a gap of at least a metre or more where possible, and wait for a broken line and a long clear straight. With only 3 km to your turn-off, patience costs little time. If you cannot pass safely, stay behind and be prepared to stop if the cyclist needs to avoid a hazard.
2. What is the minimum lateral clearance you should aim for when passing a cyclist, and why does speed matter?
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Give the cyclist plenty of room, at least about 1 metre at lower speeds and more at higher speeds, and only pass when you can do so without crossing a solid line illegally or forcing oncoming traffic to react. Speed matters because the air pressure from a fast-moving vehicle can destabilise a cyclist, and a cyclist may need to swerve for potholes, debris or wind. The faster you pass, the less time either of you has to react and the more severe any impact. Reduce speed before and during the pass, and do not return to the lane until you can see the cyclist clearly in your mirrors.