When must you take extra care if you’re driving a vehicle more than 3.0 metres (10 feet) high?

Explanation: You must take care when approaching any hazard where height is limited. Know the height of your vehicle and what you can drive under safely. If you aren't sure that it's safe, take another route.

Category: Vehicle Weights and Dimensions

References: The Official DVSA Guide to Driving Buses and Coaches: Section 3, The Official DVSA Guide to Driving Goods Vehicles: Section 2, Know Your Traffic Signs: Page 24-26