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## 2. Warning Signs 

The pennant–shaped yellow warning sign emphasizes, rather than replaces, the rectangular regulatory “DO NOT PASS” sign. The pennant is located on the left side of the road and points to the beginning of the no-passing zone (solid yellow line in your lane). 

the most important caution signs is the “STOP AHEAD” sign. It is placed far ahead of a stop sign when the driver’s view of the stop sign is blocked by a curve or other objects. Diamond-shaped caution or 

warning signs that are orange with black messages warn about construction or maintenance areas. Highway work zones are covered in more detail in Chapter 4 — Your Driving. 

Diamond-shaped signs are also caution or warning signs. They are normally black on yellow, but when they are 

black on orange, they warn of conditions 

for construction or maintenance areas. When you see one of these signs, drive with extra care. One of 

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“RAILROAD CROSSING” are printed in black on the white crosspieces. If there are multiple tracks at the crossing, they are shown on a sign below the crossbuck. You must stop at a railroad crossing whenever a flagman, signal or gate indicates an approaching train. You must remain stopped until the gate lifts or the signal or flagman indicates that it is safe to proceed. Take the time to check twice in each direction before crossing a railroad track. 

A circular sign, with a black cross and the black letters “RR” on a yellow background, gives advance warning of a railroad 

crossing. When you see this sign, slow down. Stop if necessary to be sure you can safely clear the crossing. 

At the railroad crossing itself is the 

railroad crossing crossbuck sign. The words 

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