DTT HGV Road Signs

Question 1

What does a circular sign with a red border showing a truck silhouette mean?

Accepted Answer

No entry for goods vehicles (or vehicles over the weight shown)

Answer

Truck parking area ahead

Answer

Truck route recommended

Answer

Warning: trucks turning

Question 2

What does a triangular warning sign showing a steep incline with '10%' indicate?

Accepted Answer

A steep hill ahead with a gradient of 10% — select appropriate gear

Answer

The road width narrows by 10%

Answer

Speed limit of 10 km/h

Answer

10% of the road is under repair

Question 3

What does a rectangular sign with 'LOW BRIDGE' and a height measurement indicate?

Accepted Answer

The maximum height of vehicle that can safely pass under the bridge ahead

Answer

The depth of water at a ford crossing

Answer

The width restriction ahead

Answer

The height of the road above sea level

Question 4

What does a blue circular sign showing a truck and a car side by side (with the truck crossed out) mean?

Accepted Answer

No overtaking by heavy goods vehicles

Answer

Trucks and cars must travel side by side

Answer

Dual carriageway for trucks and cars

Answer

Truck parking next to car parking

Question 5

What does a sign showing an axle weight limit (e.g., '8t' with an axle symbol) mean?

Accepted Answer

No vehicle with any axle weight exceeding the stated limit may use this road

Answer

The total vehicle weight must not exceed 8 tonnes

Answer

The road has 8 tonnes of material on it

Answer

Speed limit for 8-tonne vehicles

Question 6

What does a sign showing a width restriction (e.g., '2.5m' with width indicator arrows) mean?

Accepted Answer

The road or structure ahead has a width restriction — vehicles wider than the stated measurement cannot pass

Answer

The lane is 2.5 metres wide

Answer

You must maintain 2.5 metres between vehicles

Answer

The speed limit is 2.5 times higher than normal