District of Columbia driving lesson · Signs, Signals & Pavement Markings
Warning signs: intersections, curves & lanes
A 3-minute lesson from the District of Columbia course. Read the rules and examples, follow the handbook page references, and check your understanding before you move on.
Most warning signs are black and yellow, and most are diamond-shaped. They warn of what's coming so you can slow down and watch for other signs and signals.
An advisory speed plate, posted under a warning sign, shows the maximum safe speed for that stretch; slow down to it. An Exit Advisory Speed sign shows the maximum safe speed for an entrance or exit.
A yellow diamond with a winding arrow appears, with a 25 mph plate below it. A series of curves is ahead: slow to 25 mph before the first curve, not in the middle of it.
Check your understanding
Read the question, decide on an answer, then open it to check the explanation. These are Roadwise study questions based on the source handbook.
What does a 'T' intersection sign warn drivers about?
The road splits into three directions
The road ends; stop or yield ahead
A traffic circle is ahead
The right lane ends ahead
Answer: The road ends; stop or yield ahead
A 'T' intersection sign warns that the roadway ends, requiring a stop or yield before turning.
