Driving in adverse weather conditions (226 to 237)

Overview (226)

226

You MUST use headlights when visibility is seriously reduced, generally when you cannot see for more than 100 metres (328 feet). You may also use front or rear fog lights but you MUST switch them off when visibility improves (see Rule 236).

Law RVLR regs 25 & 27

Wet weather (227)

227

Wet weather

In wet weather, stopping distances will be at least double those required for stopping on dry roads (see ‘Typical stopping distances). This is because your tyres have less grip on the road. In wet weather

Icy and snowy weather (228 to 231)

228

In winter check the local weather forecast for warnings of icy or snowy weather. DO NOT drive in these conditions unless your journey is essential. If it is, take great care and allow more time for your journey. Take an emergency kit of de-icer and ice scraper, torch, warm clothing and boots, first aid kit, jump leads and a shovel, together with a warm drink and emergency food in case you get stuck or your vehicle breaks down.

229

Before you set off

Laws CUR reg 30, RVLR reg 23, VERA sect 43 & RV(DRM)R reg 11

rule-229-make-sure-your-windscreen-is-completely-clear

Rule 229: Make sure your windscreen is completely clear

230

When driving in icy or snowy weather

231

Drive extremely carefully when the roads are icy. Avoid sudden actions as these could cause loss of control. You should

Windy weather (232 to 233)

232

High-sided vehicles are most affected by windy weather, but strong gusts can also blow a car, cyclist, motorcyclist or horse rider off course. This can happen on open stretches of road exposed to strong crosswinds, or when passing bridges or gaps in hedges.

233

In very windy weather your vehicle may be affected by turbulence created by large vehicles. Motorcyclists are particularly affected, so keep well back from them when they are overtaking a high-sided vehicle.

Fog (234 to 236)

234

Before entering fog check your mirrors then slow down. If the word ‘Fog’ is shown on a roadside signal but the road is clear, be prepared for a bank of fog or drifting patchy fog ahead. Even if it seems to be clearing, you can suddenly find yourself in thick fog.

235

When driving in fog you should

236

You MUST NOT use front or rear fog lights unless visibility is seriously reduced (see Rule 226) as they dazzle other road users and can obscure your brake lights. You MUST switch them off when visibility improves.

Law RVLR regs 25 & 27

Hot weather (237)

237

Keep your vehicle well ventilated to avoid drowsiness. Be aware that the road surface may become soft or if it rains after a dry spell it may become slippery. These conditions could affect your steering and braking. If you are dazzled by bright sunlight, slow down and if necessary, stop.

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