LGV Road Signs for LGVs 2

Question 1

What do green-backed road signs typically indicate?

Accepted Answer

Primary routes — important roads connecting major destinations

Answer

Green-backed signs indicate primary routes, which are the most important roads in a given area connecting major towns and cities. These are generally suitable for HGVs. Blue-backed signs indicate motorways, white-backed signs indicate non-primary routes.

Question 2

What does a circular sign showing 'T' in tonnes with a red border indicate?

Accepted Answer

Maximum gross weight of vehicles permitted on the road

Answer

A circular prohibition sign showing a weight in tonnes indicates the maximum gross vehicle weight permitted. Vehicles exceeding this weight must use an alternative route. These are commonly found near weak bridges, residential areas, and unsuitable roads.

Question 3

What does a sign showing two arrows pointing in opposite directions (one larger) with an HGV symbol mean?

Accepted Answer

Priority must be given to oncoming vehicles — HGVs should wait if the road is too narrow

Answer

This sign indicates that priority must be given to vehicles coming from the opposite direction, typically at a narrow point. HGV drivers should wait for oncoming vehicles to pass before proceeding, as the road may be too narrow for two large vehicles.

Question 4

What information does a motorway gantry sign showing a red 'X' above a lane provide?

Accepted Answer

The lane is closed — you must not travel in this lane

Answer

A red 'X' on a motorway gantry sign means the lane is closed and must not be used. This could be due to an incident, breakdown, or roadworks. Driving in a lane marked with a red 'X' is illegal and extremely dangerous.

Question 5

What does a blue circular sign showing '30' mean?

Accepted Answer

Minimum speed 30 mph — you must travel at least this fast

Answer

A blue circular sign with a number indicates a minimum speed limit. Vehicles must travel at least 30 mph (unless safety requires otherwise). This is important for HGVs on hills or in tunnels where slow-moving vehicles could cause congestion or danger.

DVSA UK Driving Theory Practice Test

DVSA UK Driving Theory Practice Test

LGV Road Signs for LGVs 2