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Lesson 3 of 17 · Chapter 4: Traffic Control

Sign shapes and colors

New York signs tell you their job by color and shape before you can read a word. Learn the families (white regulation, yellow warning, orange work area, green destination and blue service) and what STOP and YIELD require.

Topic
Road signs
Key points
10
Numbers
1
Manual
Chapter 4
What you must know

Key points

  1. Regulation signs are normally white rectangles with black letters or symbols, though some have other shapes or use red.

    Source: Chapter 4
    “REGULATION SIGNS normally are white rectangles with black letters or symbols, but some are different shapes, and some can use red letters or symbols.”
    New York State Driver's Manual, Chapter 4
  2. Warning signs are normally yellow diamonds with black letters or symbols.

    Source: Chapter 4
    “WARNING SIGNS normally are yellow and diamond-shaped, with black letters or symbols.”
    New York State Driver's Manual, Chapter 4
  3. Destination signs are green with white letters and symbols.

    Source: Chapter 4
    “DESTINATION SIGNS are green with white letters and symbols.”
    New York State Driver's Manual, Chapter 4
  4. Service signs are blue with white letters and symbols.

    Source: Chapter 4
    “SERVICE SIGNS are blue with white letters and symbols.”
    New York State Driver's Manual, Chapter 4
  5. At a STOP sign, come to a full stop, yield to vehicles and pedestrians in or heading toward the intersection, and go when it is safe.

    Source: Chapter 4
    “Come to a full stop, yield the right-of-way to vehicles and pedestrians in or heading toward the intersection. Go when it is safe.”
    New York State Driver's Manual, Chapter 4
  6. Stop before the stop line if there is one; if not, stop before you enter the crosswalk.

    Source: Chapter 4
    “You must come to a stop before the stop line, if there is one. If not, you must stop before you enter the crosswalk.”
    New York State Driver's Manual, Chapter 4
  7. At a YIELD sign, slow down, be ready to stop and yield, and come to a full stop if traffic requires it.

    Source: Chapter 4
    “Decrease speed as you reach the intersection. Prepare to stop and yield the right-of-way to vehicles and pedestrians in or heading toward the intersection. You must come to a full stop at a YIELD sign if traffic conditions require it.”
    New York State Driver's Manual, Chapter 4
  8. A red circle with a slash over a symbol means the action shown, like a right turn, is not allowed, or some vehicles are restricted.

    Source: Chapter 4
    “Some regulation signs have a red circle with a slash over a symbol. This indicates that an action, like a right turn, is not allowed or that some vehicles are restricted from the road.”
    New York State Driver's Manual, Chapter 4
  9. A yellow and black recommended speed sign joined to a warning sign means a reduced speed is advised there.

    Source: Chapter 4
    “Sometimes a warning sign is joined with a yellow and black "recommended speed" sign. This indicates reduced speed is advised in that area.”
    New York State Driver's Manual, Chapter 4
  10. In a work area a speed limit as low as 25 mph can be posted, and even without one you must slow down.

    Source: Chapter 4
    “A work area speed limit as low as 25 MPH (40 km/h) can be posted. Even if no speed limit is provided, you must drive at a reduced speed through the work zone”
    New York State Driver's Manual, Chapter 4
Exact figures

Numbers to know

NumberWhat it meansManual
25 mphlowest work area speed limit that can be postedChapter 4
Signs in this chapter

Recognize these signs

  • Stop sign
    Stop
  • Yield sign
    Yield
  • No left turn (red circle and slash) sign
    No left turn (red circle and slash)
  • Speed limit (regulation sign) sign
    Speed limit (regulation sign)
  • Traffic signal ahead (warning sign) sign
    Traffic signal ahead (warning sign)
  • Road work ahead (work area sign) sign
    Road work ahead (work area sign)
  • Hospital (service sign) sign
    Hospital (service sign)
Check yourself

3 questions from the New York practice test

  1. 1. What does a red octagonal STOP sign require in New York?

    1. A full stop and yielding before proceeding safely
    2. A stop only when another vehicle is visible
    3. A yield without stopping when no line is painted
    4. A rolling stop if the intersection is clear
    Show answer

    A full stop and yielding before proceeding safely. The octagonal shape identifies a STOP sign, and New York requires a complete stop before the stop line when one is present. If there is no line, stop before the crosswalk, or before entering the intersection when neither marking exists. Yield to vehicles and pedestrians in or approaching the intersection, then go when safe. An empty-looking roadway does not convert the sign into a yield sign. The cue is the red octagon, followed by the stopping location marked on the pavement.

  2. 2. What does a yellow diamond sign normally warn a New York driver about?

    1. A service area with fuel and lodging
    2. A hazardous location or a location with a special rule ahead
    3. A mandatory speed or parking command
    4. A destination and its travel distance
    Show answer

    A hazardous location or a location with a special rule ahead. New York uses yellow diamond warning signs to alert drivers to a hazardous location or a location with a special rule. The sign is advance information, so it gives the driver time to reduce speed, position the vehicle, or prepare for a change. Blue service signs point to facilities, white regulation signs state commands, and green destination signs guide travel. When the yellow diamond appears, read the symbol and adjust before reaching the feature rather than treating it as permission or a parking instruction.

  3. 3. What kind of sign is normally a white rectangle with black letters or symbols in New York?

    1. A destination sign showing distance to a town
    2. A work-area warning sign for construction crews
    3. A regulation sign communicating a traffic rule
    4. A service sign identifying a medical facility
    Show answer

    A regulation sign communicating a traffic rule. White rectangular signs with black letters or symbols normally communicate regulations, such as lane use, turns, speed, parking, or another special requirement. They are not primarily route guides, temporary work warnings, or service markers. Some regulation signs use different shapes or red symbols, so color and shape are strong clues but the words still matter. When you see the white rectangle, slow enough to read the instruction and follow it as a traffic rule rather than treating it as optional advice.

Next step

Practice this topic

Lock it in with road signs questions from the free New York practice test. Every answer comes with a plain English explanation.

Source: the New York State Driver's Manual, Chapter 4: Traffic Control. This lesson is a plain English summary, not the law itself; where it differs, the manual and the statute govern. Last checked 2026-09-27.