Wet Roundabout on Worn Front Tyres
At 21:40 in Nicosia, after 40 minutes of heavy rain, you are driving a 2011 front-wheel-drive hatchback alone. The front tyres measure about 2.0 mm on the outer shoulders but 1.5 mm across the central three-quarters of the tread; the rear tyres have 4 mm. You approach a two-lane roundabout at an indicated 58 km/h on a road signed 50 km/h. A car is close behind, about 8–10 m from your rear bumper. The surface is glossy and there is standing water near the entry lane. You intend to take the second exit, straight ahead. The roundabout has no traffic lights. Your ABS warning light is not on, but the steering feels light as you cross a painted arrow. A pedestrian is waiting at a crossing about 30 m beyond your exit. You have not used the brakes hard yet.
1. What is your speed, braking and steering plan for the 100 m before the roundabout, and why?
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Plan. Ease off the accelerator immediately and brake progressively while the car is straight, aiming to enter the roundabout at about 25–30 km/h. The light steering and standing water mean the tyres may already be lifting; do not brake sharply or turn the wheel quickly. Keep a steady gap from the tailgater rather than braking late-if the car behind stays very close, slow earlier and let it pass before the entry if that can be done safely. Select second gear before the wet patch for smooth control.
Tyres. The front tyres are not legal: the minimum is 1.6 mm across the central three-quarters of the tread around the whole circumference. The 2.0 mm shoulders do not compensate for 1.5 mm in the central band. They also increase aquaplaning risk and wet braking distance. Replace both front tyres before the next trip and check the rears, spare and pressures.
Roundabout. In left-hand traffic you go clockwise. For the second exit, approach in the left lane, no signal, give way to traffic from the right, signal left after passing the first exit, check the left mirror and blind spot, and leave. Reduce speed for the waiting pedestrian and be ready to stop.
2. Are the front tyres legal, and how do they change your risk? What should you do before the next trip?
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The front tyres are illegal. The legal minimum is 1.6 mm across the central three-quarters of the tread breadth, around the entire circumference. A reading of 1.5 mm in that central band fails even though the outer shoulders show 2.0 mm; shoulder depth is not the test. The tyres therefore reduce wet grip, lengthen braking distance and make aquaplaning more likely, especially with standing water at the roundabout entry. The light steering you feel may be early water lift, so ease off the accelerator and avoid sudden inputs. Before the next trip, replace both front tyres, check the rear tyres, spare and pressures, and have the alignment checked if wear is uneven. Do not rely on ABS to compensate for poor tread.
3. Explain your lane and signalling plan for the second exit, and how the pedestrian changes it.
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In Cyprus you drive on the left, so roundabout traffic circulates clockwise. For the second exit (straight ahead), approach in the left lane unless signs or markings direct otherwise. Do not signal on approach. Give way to traffic already on the roundabout coming from your right. Stay in the left lane, and after passing the first exit, check the left mirror and blind spot, signal left, and leave the roundabout. Do not drift across lanes. Because a pedestrian is waiting at the crossing about 30 m beyond your exit, reduce speed before leaving and be prepared to stop clear of the crossing. If the pedestrian has stepped onto the crossing, you must give way; if they are waiting, approach cautiously and do not accelerate to beat them.