DTT HGV Road Signs 2

Question 1

What does a sign showing 'CLEARWAY' mean for truck drivers?

Accepted Answer

No stopping or parking during the times shown — vehicles must keep the road clear

Answer

A Clearway sign means no stopping or parking is permitted during the hours indicated (or at all times if no hours are shown). This keeps traffic flowing on busy routes. Even loading and unloading may be prohibited during clearway hours.

Question 2

What does a sign showing an upward arrow and a downward arrow (one larger than the other) mean?

Accepted Answer

Priority for traffic in the direction of the larger arrow — oncoming traffic must yield

Answer

This sign indicates that traffic in the direction of the larger arrow has priority over oncoming traffic. The traffic facing the smaller arrow must give way. This is commonly seen at narrow bridges and roadworks.

Question 3

What are chevron signs (black and white arrows on a curve) designed to indicate?

Accepted Answer

The direction and severity of a sharp bend — they guide drivers through the curve

Answer

Chevron signs are placed on the outside of sharp bends to warn drivers of the curve's direction and help guide them through it. The number and size of chevrons indicate the severity of the bend. Particularly important for large vehicles with longer braking distances.

Question 4

What does a sign showing 'T' in red on a white background at the end of a road indicate?

Accepted Answer

A T-junction ahead where you must give way or stop

Answer

A T-junction ahead sign warns that the road ends and you must turn left or right. You must give way to traffic on the road you are joining. This is particularly important for truck drivers who need more time and space to make the turn.

Question 5

What does a variable message sign (VMS) on a motorway typically display?

Accepted Answer

Real-time traffic information such as speed advisories, lane closures, incidents, weather warnings, or journey time estimates

Answer

Variable message signs are electronic displays that show real-time information including advisory speed limits, lane closures, accident warnings, fog warnings, and travel time estimates. Truck drivers must pay attention to these as conditions can change rapidly.

Irish DTT Truck/Bus Practice Test

Irish DTT Truck/Bus Practice Test

DTT HGV Road Signs 2