TLSAE Road Signs and Traffic Signals

Question 1

What shape is used exclusively for stop signs in the United States?

Accepted Answer

Octagon

Answer

The octagon (8-sided shape) is used exclusively for stop signs in the US, making them instantly recognizable even when obscured by snow or damage.

Question 2

A yellow diamond-shaped sign with a black 'X' and 'RR' indicates:

Accepted Answer

A railroad crossing ahead

Answer

A yellow diamond sign with 'RR' and a black X warns drivers that a railroad crossing is ahead.

Question 3

What does a flashing RED traffic light signal require a driver to do?

Accepted Answer

Stop completely, yield to traffic and pedestrians, then proceed when safe

Answer

A flashing red light must be treated like a stop sign — come to a complete stop, yield, then proceed when it is safe.

Question 4

What color and shape are regulatory signs (signs that state traffic laws)?

Accepted Answer

White rectangles or squares (and octagons for stop signs)

Answer

Regulatory signs are white with black or red text, typically in rectangular shapes, and include speed limit signs, no-turn signs, and stop signs.

Question 5

A white sign with the message 'DO NOT PASS' means:

Accepted Answer

Passing is absolutely prohibited at this location

Answer

A 'Do Not Pass' sign is a regulatory sign meaning passing is legally prohibited at that location.

TLSAE - Traffic Law and Substance Abuse Education Practice Test