LGV Road Signs & Highway Code Flashcards

What does a red triangular sign with wavy lines (representing water) indicate?

Answer: Risk of flooding or ford ahead

A red triangle with wavy lines warns of a ford or flood risk ahead. LGV drivers should be aware that fords may be impassable for heavy vehicles and should seek an alternative route.

When a police officer faces you with their right arm extended, what does this mean?

Answer: Stop — you must not proceed

When a police officer faces you and raises their right arm, you must stop. This is a legally binding signal that overrides traffic signals and road signs.

What does a sign showing a red triangle with two cars side by side mean?

Answer: Risk of queuing traffic ahead

A red triangle warning sign showing two cars side by side warns of the risk of queuing or slow-moving traffic ahead. LGV drivers should reduce speed and prepare to stop.

A white rectangular sign with black text reading 'WEAK BRIDGE' followed by a weight means:

Answer: Maximum permitted weight for that bridge

A weak bridge sign shows the maximum gross weight permitted to cross that bridge. LGV drivers must know their vehicle's gross weight and must not cross if it exceeds the stated limit.

What does a blue circle sign with a white arrow pointing left and right indicate?

Answer: Pass either side of the obstruction

A blue circle with arrows pointing left and right means drivers must pass either side of the obstruction or island ahead. This is a mandatory instruction, not advisory.

At a signal-controlled junction, what does a flashing green arrow mean?

Answer: You may proceed in that direction even if the main signal is red

A flashing green filter arrow allows traffic to proceed in the indicated direction even when the main signal is red. LGV drivers should check their intended direction matches the arrow.