What does the School sign mean?
The School sign (MUTCD S1-1) is a school zone sign under the federal Manual on Uniform Traffic Control Devices, the national standard the states build from. It warns that a school, school zone or school crossing is at or near this point.
Source: MUTCD 11th Edition, Part 7, Table 7B-1, checked 2026-09-09.
What shape and color is the School sign?
| MUTCD code | S1-1 |
|---|---|
| Group | School zone signs |
| Shape | Pentagon with the point up |
| Color | Fluorescent yellow-green background, black legend and border |
What a pentagon, point up means. School zone or school crossing. Shape and color are both unique to this group.
What fluorescent yellow-green means. Pedestrian, bicycle and school warnings. Reserved so those warnings cannot be mistaken for an ordinary hazard.
School zone signs. A pentagon means school and nothing else, so the outline alone answers the question. Fluorescent yellow-green is weaker evidence, because pedestrian and bicycle signs are allowed the same color, and that asymmetry is where the marks go.
Which plaque is under the pentagon, and how far back is the post?
The plaque under the pentagon changes the job. Section 7B.02 lists four uses: a school area, the start of a designated school zone, an advance crossing, and the crossing itself. Where state or local law designates a school zone, the pentagon is required at its start. Section 7B.03 requires the pentagon with AHEAD or a distance before the first School Crossing assembly in each direction, unless a school zone sign already starts the zone ahead of it, and puts the pentagon with the diagonal arrow at the crosswalk when that assembly is used. The Manhattan photograph shows the pentagon with no plaque in the frame. Read the plaque on the post you are actually passing.
| What you see | Where it stands | What it tells you |
|---|---|---|
| Pentagon alone, or with a SCHOOL plaque | A school area, or the start of a school zone that state or local law designated (Section 7B.02 requires the pentagon there). | A school is near. The speed limit changes only where a school speed sign says so. |
| Pentagon with AHEAD or XX FEET | Before the first School Crossing assembly in each direction, placed using Table 2C-3 (Section 7B.03). | The crosswalk is still ahead. Slow before the arrow. |
| Pentagon with a diagonal arrow | At the school crosswalk or as close to it as possible, and only at crossings beside a school or on an established school walking route. | Children may be crossing here now. |
| SCHOOL, a speed limit, and a times or WHEN FLASHING plaque | Where the reduced school speed zone begins (Section 7B.05). | That number applies only during the posted times or while the beacon flashes. |
Section 7B.05 says the reduced zone should begin at least 200 feet, and not more than 500 feet, before the grounds or a school crossing. Increase the 200 feet if the reduced limit is 30 mph or higher. A pentagon is required in advance of the first school speed sign, placed using Table 2C-3, and the section does not say which column. Under Section 7B.01, an expressway shall use the 48 by 48 inch pentagon, a road with four or more lanes posted 40 mph or higher should use that size, and the ordinary conventional-road size is 36 by 36.
What speed applies, and during which minutes?
Florida Statutes 316.1895(5) allows the restrictive speed only in the 30 minutes before, during, and 30 minutes after the times pupils arrive for a regularly scheduled breakfast program or school session and leave a regularly scheduled session. It prints no statewide clock. Subsection (6) says a permanent sign shall show the hours, or a flashing beacon may be used instead, and it requires a Speeding Fines Doubled sign inside any school zone set up, or re-signed, from July 1, 2008. Subsection (10) forbids driving faster than the posted school-zone speed and makes that a moving violation under chapter 318. Section 316.1895 prints no fine amount.
The Manhattan sign sits in New York City, where the New York State Driver's Manual (MV-21), Chapter 8 gives 25 mph as the limit unless another number is posted. The school pentagon in the photo has no speed panel, so it does not replace a posted limit. If a school zone is designated here, Chapter 5 also prohibits a U-turn within it. Check for a separate school speed sign before assuming the limit has changed.
What does Luis Ortega do at 7:22 a.m. and again at 11:40?
A 35 mph avenue, a 20 mph panel, two times of day
- 1Luis Ortega is northbound in an urbanized Florida city on a street posted 35 mph. The school speed assembly says 20 and stands 300 feet before the crosswalk, inside the 200 to 500 foot range. Because 20 is under 30, Section 7B.05 does not ask the agency to stretch the 200-foot minimum.
- 2The agency put the warning pentagon about 250 feet before that assembly, the Table 2C-3 potential-stop distance for 35 mph. He passes it at 7:22 a.m. At 35 mph, 250 feet takes about 5 seconds.
- 3The plaque under the 20 reads 7:00 a.m. to 8:30 a.m. and 2:00 p.m. to 3:30 p.m. Those hours are set for this school, not by the statute. At 7:22 a.m. he is inside them, so 316.1895(10) holds him to 20 from the speed assembly on. At 11:40 a.m. the plaque does not apply. The pentagon is still there. The limit is 35.
Outcome. A pentagon with no number did not drop him to 20 for the day, and the morning plaque did not let him keep 35.
A practice question that says the school sign means 15 mph whenever children are nearby has skipped the speed assembly. In a Florida urbanized area the posted school-zone speed cannot exceed 20 mph, and it cannot be under 15 unless a local regulation says so. It applies during the posted hours, which the statute keeps inside the arrival and dismissal windows, or while the beacon flashes.
AHEAD means the crosswalk is still ahead. The arrow marks it. The flashing speed sign applies only while the beacon is on.
What is the School sign often mistaken for?
The pedestrian warning sign (W11-2), which is a diamond. S1-1 is the only pentagon-shaped sign in normal use, and MUTCD 11th Edition Section 7B.01 paragraph 05 makes fluorescent yellow-green mandatory for school warning signs, whereas it is optional for pedestrian and bicycle signs. Note the old S2-1 School Crossing sign no longer exists: under Section 7B.02 the S1-1 sign does all four jobs depending on the plaque under it.
|  |
|---|---|
| GroupSchool zone signs | GroupWarning signs |
| ShapePentagon with the point up | ShapeDiamond |
| ColorFluorescent yellow-green background, black legend and border | ColorYellow or fluorescent yellow-green background, black symbol and border |
| What it meansWarns that a school, school zone or school crossing is at or near this point. | What it meansExpect pedestrians in the roadway at or close to this point, with no signal anywhere to hold you for them. |
Which signs get mistaken for the School sign?
PlaygroundW15-1The School sign (S1-1), which is a pentagon. Playground is a diamond and carries no automatic speed limit change.
What does the permit test ask about the School sign?
These 2 questions are from the practice bank, with the answer marked.
This shape and color are reserved for one situation. It marks:
- A.A hospital zone
- B.A school zone or school crossing(correct answer)
- C.A playground
- D.A residential speed zone
Source: MUTCD S1-1
A five-sided sign shaped like a house pointing upward indicates:
- A.A hospital
- B.A school zone or school crossing(correct answer)
- C.A hill
- D.A weigh station
Why: The pentagon is used for school advance warning and school crossings. Expect children, reduced limits and crossing guards.
Source: Federal MUTCD, 11th Edition (FHWA)
Questions drivers ask about the School sign
I passed the pentagon. Am I already in a lower speed limit?
Only if a school speed assembly or a School Speed Limit When Flashing sign is also in effect. Section 7B.05 puts that speed sign at the start of the reduced zone. The pentagon in advance of it is the warning, placed using Table 2C-3. Florida Statutes 316.1895(10) ties the offense to driving faster than the speed posted in the zone. A pentagon with no speed panel has not posted a number.
Are school-zone hours the same everywhere in Florida?
No. Section 316.1895(5) limits when a school-zone speed may be in force: 30 minutes before, during, and 30 minutes after pupils arrive for a regularly scheduled breakfast program or session and leave a regularly scheduled session. It does not list clock times. Subsection (6) says the permanent sign shall show the hours, or a flashing beacon may be used instead. Read the plaque on the post you are passing, or the beacon. Another school's hours are not yours.
The beacon is dark, but children are on the sidewalk. Which speed do I hold?
If this zone uses a beacon instead of printed hours, Florida 316.1895(6) makes the beacon the way you know the restrictive limit is being enforced, and MUTCD Section 7B.05 paragraph 08 says the beacon identifies the periods the school limit is in effect. A dark beacon means that lower number is not in force, and you hold the ordinary posted limit. You still yield to a child crossing in a crosswalk, under Florida 316.130(7)(c). Sidewalk presence, by itself, does not switch the speed sign on.
Can a Florida school zone be posted at 25 or at 10?
In an urbanized area, 316.1895(5) says no school-zone speed shall be more than 20 mph, so 25 is over that cap. The same subsection says a school-zone speed may not be less than 15 mph except by local regulation, so 10 would need that local regulation. Outside an urbanized area the 20 mph cap in that sentence does not apply. The 15 mph floor still does, unless a local regulation goes lower.
Sources
- MUTCD 11th Edition, Part 7, Table 7B-1
- MUTCD 11th Edition (December 2023), Section 7B.01, school sign sizes
- MUTCD 11th Edition, Section 7B.02, school area and school zone signs
- MUTCD 11th Edition, Section 7B.03, school crossing signs
- MUTCD 11th Edition, Section 7B.05, school speed limit signs, including the 200 to 500 foot placement
- MUTCD 11th Edition, Section 2C.04 and Table 2C-3, advance placement used for the school warning
- Florida Statutes 316.1895, school speed zones (2026)
- Florida Statutes 316.130, pedestrians in crosswalks (2026)
- New York State Driver's Manual (MV-21), Chapter 8: Defensive Driving
- New York State Driver's Manual (MV-21), Chapter 5: Intersections and Turns
What are the other school zone signs?
All 7 school zone signs on one page, or every US road sign by shape and color.
Test yourself on this sign and the rest of the set with a road signs practice test for Florida, Texas, California or New York.
The artwork is the federal design itself, which the manual dedicates to the public domain in MUTCD 11th Edition, Part 1, Section 1D.06, checked 2026-09-09. The Interstate Shield, the 511 pictograph and the National Scenic Byway graphic are named exceptions and are not reproduced anywhere on this site.
Source: Manual on Uniform Traffic Control Devices, 11th Edition. Not affiliated with or endorsed by the Federal Highway Administration or any state agency.