What shape and colour is the mandatory movement lane control sign?

A rect v, coloured white. Its official MUTCD code is R3-5R.

This sign governs the lane you are in. Its colours are black on white rather than black on yellow. What does that tell you about the arrow?

It is regulatory: the movement it shows is required by law, not merely suggested

It is a warning that traffic in this lane usually turns right at busy times

It is a guide sign showing where the road beyond the intersection leads

It applies only when a police officer is directing traffic at the intersection

Mandatory Movement Lane Control Sign (R3-5R)

The mandatory movement lane control sign is a rect v and its colour is white. It is a regulatory sign: it states a traffic law you must obey. Ignoring it is a citation, not a judgement call.

At a glance

Shape	rect v
Color	white
Category	Regulatory signs
MUTCD code	R3-5R

Public domain — Wikimedia Commons

How the test asks about it

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1.
This sign governs the lane you are in. Its colours are black on white rather than black on yellow. What does that tell you about the arrow?
Not quiteCorrect answer: A — It is regulatory: the movement it shows is required by law, not merely suggested
Colour tells you the category before you read a word. Black on white is the regulatory pair, so the arrow is an order: drivers in that lane must make the movement shown. The same arrow on a yellow background would only warn that the road ahead bends.
Treating lane arrows as advice about where the road goes. On a white sign the arrow decides what you are allowed to do from that lane.

Related signs

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