You’re driving at 50 mph (80 km/h) on a dry, level road. What gap should you leave between your vehicle and the one in front?

Explanation: Tailgating' - travelling too close to the vehicle in front - is very dangerous, because it doesn't give you enough distance to stop safely. Leave at least a two-second gap in good conditions, and increase this to four seconds in wet weather.

Category: The Road

References: The Official DVSA Guide to Driving Buses and Coaches: Section 4, The Official DVSA Guide to Driving Goods Vehicles: Section 4, Highway Code: Rule 126