Regulatory Signs: Speed Limits, Stop/Yield, Lane Use, Turning, and Parking Controls
Regulatory signs are the rules of the road made visible. They tell you what the law requires-where to stop, how fast you may go, which lane to use, and where you may turn or park. The Connecticut knowledge test asks you to recognize these signs by shape, color, and legend, and to apply the exceptions that Connecticut law allows. Most regulatory signs are white rectangles with black or red legends; the two big exceptions are the red octagon STOP sign and the red-and-white triangle YIELD sign.
Core rules
- A STOP sign requires a complete stop at the stop line, before the crosswalk, or at the edge of the intersecting roadway. Then yield to traffic and pedestrians.
- YIELD means slow down and stop only if necessary to let others go. It is not a rolling stop.
- Speed limit signs set the legal maximum in good conditions. Rain, ice, traffic, or darkness can make a lower speed the lawful one under the basic speed law.
- Lane-use signs may require a turn from a specific lane or reserve a lane for buses, bicycles, or turning traffic.
- Turning signs prohibit or require turns; parking signs control stopping, standing, and parking. A NO PARKING sign still allows a brief stop to pick up or drop off a passenger unless the sign says NO STANDING or NO STOPPING.
Connecticut permits a right turn on red after a full stop and yield, unless a sign prohibits it. Connecticut also permits a left turn on red from a one-way street onto another one-way street, after stopping and yielding, unless a sign prohibits it.
Worked example
You are stopped at a red light on a one-way street and want to turn left onto another one-way street. There is no NO TURN ON RED sign. Is the turn legal? Yes. In Connecticut you may turn left on red from one-way to one-way after a complete stop, yielding to pedestrians and traffic. If the cross street were two-way, the same turn would be illegal without a green arrow or green light.
Traps
Do not treat YIELD as a suggestion to stop only if you feel like it; do not roll through a STOP sign when the intersection looks clear. Do not assume the posted speed limit is safe in rain or snow. Do not ignore a NO TURN ON RED sign because right on red is usually allowed. Do not confuse NO PARKING with NO STOPPING: the first permits a brief passenger stop, the second does not.