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Difficulty: HardAgricultural Vehicles

An agricultural tractor is travelling at 8 mph on a single carriageway with double white lines where the line closest to you is solid. You are legally permitted to cross the solid line to overtake the tractor, provided the road ahead is completely clear.

Answer: Answer

Answer

False. Drivers are not permitted to cross or straddle a solid double white line to overtake a moving agricultural tractor, even if it is travelling at 10 mph or less.
Under Rule 129 of the Highway Code, crossing a solid white line on your side is strictly prohibited unless turning into adjoining premises, passing a stationary vehicle, or overtaking a pedal cycle, horse, or road maintenance vehicle travelling at 10 mph (16 km/h) or less. Agricultural vehicles such as tractors are not covered by this exemption. Drivers must remain behind the tractor until the road markings permit overtaking or until the tractor pulls in and comes to a complete standstill.

Step-by-Step Solution

1
Identify the applicable road marking regulation
Highway Code Rule 129 strictly prohibits crossing or straddling a continuous solid white line on the driver's side under normal circumstances.
Solid double white lines are installed on sections of road where overtaking is particularly hazardous due to restricted visibility or road geometry.
2
Evaluate the statutory exceptions to Rule 129
The law permits crossing the solid line only when entering premises/side roads, passing a completely stationary vehicle, or overtaking a pedal cycle, horse, or road maintenance vehicle travelling at 10 mph (16 km/h) or less.
Exemptions are narrowly defined by law to protect specific vulnerable or maintenance road users without opening broad loopholes.
3
Apply the exception criteria to the agricultural vehicle scenario
Agricultural tractors are moving vehicles and are not pedal cycles, horses, or road maintenance vehicles, so they do not qualify for the 10 mph exemption.
Because the tractor is still moving and does not fit the statutory categories, crossing the solid line constitutes an illegal manoeuvre.

Key Concept

Highway Code Rule 129 solid white line overtaking restrictions regarding slow-moving agricultural vehicles
Estimated Time:1m 0s
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Topics

Agricultural Vehicles

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