Safety around tractors and farm vehicles

By the end of this topic you can

• You can keep a safe following distance behind a tractor and trailer.
• You can judge when overtaking a farm vehicle is not safe.
• You can recognise signs that a tractor is about to turn or stop.
• You can react safely to mud, debris and wide machinery coming towards you.
• You can explain what a flashing amber beacon is telling you.

What you need to know and understand

• Highway Code rule 164 warns that getting too close to a tractor with a trailer blocks your view of the road ahead.
• Flashing amber beacons warn of a slow-moving or stationary vehicle; approach with caution (rule 225).
• Most tractors are limited to about 25 mph, and wide ones to 20 mph or less, so you will close the gap quickly.
• Long vehicles, including those towing trailers, may swing out or straddle lanes when turning (rule 187).
• Rule 166 says do not overtake if there is any doubt or you cannot see far enough ahead.
• Mud and debris on the road can make the surface slippery, especially when wet.

Following a tractor

The temptation is to sit close behind and look for a gap. Instead, drop back. A bigger gap lets you see past the tractor, shows the driver you are there in their mirrors, and gives you time to react if they brake or turn. Tractor drivers may have a limited view behind, especially with a large trailer or a loaded implement.

• Watch for the tractor slowing near gateways and farm entrances; it may turn without much room to signal.
• Remember a right turn into a field can look like a tractor pulling out to let you pass.
• Expect loose straw, hay or soil to fall from open trailers.

Overtaking: when to wait

A tractor and trailer can be surprisingly long, so overtaking takes more road and more time than passing a car. Only overtake when you can see a long, clear stretch and you are sure you can get back in without cutting in. If in doubt, do not overtake.

• Do not overtake near bends, junctions, field entrances, dips or the brows of hills.
• Do not rely on the tractor driver waving you past. Make your own judgement.
• Be patient: most tractors pull in when it is safe to let traffic pass.

Meeting farm machinery head-on

Very wide machinery may travel with escort vehicles in front. Follow their directions and give them room.

1. Slow down early as soon as you see a wide vehicle or flashing amber beacon ahead.
2. Look for a passing place, lay-by or wide verge on your side.
3. Pull in and stop if the road is too narrow for both of you.
4. Wait for the machine and any escort vehicle to pass before moving off.

Mud, harvest time and darkness

Busy farming periods bring more tractors and more mud on the road. Mud and wet leaves reduce grip, so slow down, brake gently and leave longer gaps. Watch for 'mud on road' warning signs. At dusk, a dirty tractor's lights and reflectors can be hard to see, so scan the road well ahead.

Common mistakes

• Tailgating a tractor. Hanging back gives you a better view and more time to react.
• Overtaking as a tractor slows near a gateway. It may be about to turn right across your path.
• Underestimating length. A tractor and trailer can be much longer than a car, so allow far more space to pass.
• Braking hard on muddy patches. Slow down before you reach them.
• Ignoring a flashing amber beacon. It means a slow or stopped vehicle ahead.

Test yourself: Safety around tractors and farm vehicles

Answer each question, then read the explanation. Questions come in a random order each time.