Signs
School Zone Parking Sign Spec: S-Series, Drop-Off, and Fines
Cojo
Invalid Date
7 min read
A school zone parking sign package mixes MUTCD S-series school warning signs with parking-restriction R-series and drop-off-lane custom signs. Standard package on a typical K-8 elementary school includes the S1-1 school crossing sign (fluorescent yellow-green diamond, 30 by 30 inches), S5-1 reduced speed plaque ("SPEED LIMIT 20 / WHEN CHILDREN PRESENT"), drop-off-lane no-parking signs, and pedestrian-crossing W11-2 signs. Oregon enforcement under ORS 811.235 doubles speeding fines in marked school zones during posted hours -- the sign package is what creates the marked zone.
MUTCD Chapter 7 governs traffic control for school areas. The S-series of warning signs is dedicated to school applications.
| Sign | Description | Standard Size |
|---|---|---|
| S1-1 | School crossing (walking-children symbol) | 30 by 30 inch diamond, fluorescent yellow-green |
| S2-1 | School pedestrian (school approach) | 30 by 30 inch diamond, fluorescent yellow-green |
| S3-1 | School bus stop ahead | 30 by 30 inch diamond, fluorescent yellow-green |
| S4-1P / S4-2P | Time / day plaque (e.g., "WHEN CHILDREN PRESENT") | 24 by 12 inch rectangle |
| S4-3P | "SCHOOL" plaque | 24 by 12 inch rectangle |
| S4-4P | "SCHOOL DAYS" plaque | 24 by 12 inch rectangle |
| S5-1 | Reduced school speed limit (e.g., 20 mph) | 24 by 30 inch rectangle |
| S5-2 | End school zone | 24 by 24 inch rectangle |
A standard K-8 elementary school in Oregon runs the following package:
School-zone signs sit at the highest visibility tier in MUTCD. Spec accordingly.
| Component | Spec |
|---|---|
| Panel | ASTM B209 0.080-inch aluminum |
| Sheeting (warning signs) | ASTM D4956 Type IV high-intensity prismatic, fluorescent yellow-green |
| Sheeting (parking signs) | Type IV high-intensity prismatic, white on red |
| Symbol / legend | Vinyl-cut per MUTCD layouts |
| Post (S-series and W-series warning signs) | 9-foot 2-inch galvanized U-channel or telespar |
| Post (drop-off no-parking signs) | 9-foot 2-inch galvanized U-channel |
| Footing | 12-inch diameter by 24-inch deep concrete |
| Mount bracket | Stainless steel theft-resistant fasteners |
Oregon Revised Statutes Chapter 811.235 doubles speeding fines in marked school zones during posted hours. The sign package is what creates the "marked" school zone for enforcement purposes -- absent the S5-1 reduced speed limit signs and conditional plaques, ORS 811.235 enhanced fines do not apply.
This makes the sign install both a safety intervention and an enforcement enabler. A school zone with faded or missing S5-1 signs loses the doubled-fine deterrent and recovers it only after the signs are reinstalled.
Industry Baseline Range
| Component | Cost Range |
|---|---|
| S1-1 / S2-1 / S3-1 30 by 30 fluorescent yellow-green panel | $90 to $200 |
| S5-1 reduced speed limit 24 by 30 panel | $80 to $180 |
| S4-1P / S4-3P plaque 24 by 12 | $35 to $90 |
| W11-2 pedestrian crosswalk 30 by 30 | $90 to $200 |
| W17-1 "BUMP" advance warning | $40 to $90 |
| R7-series drop-off no-parking | $40 to $90 |
| 9-foot post + footing + bracket installed | $145 to $300 |
| Crew labor, batched (8-plus signs) | $35 to $90 per sign |
These figures reflect published industry averages. Current market pricing varies significantly and actual quotes may fall well outside these ranges based on site-specific conditions, material costs, and project complexity.
2026 fluorescent yellow-green sheeting is in tight supply because of microsphere shortages -- pricing trends 15 to 25% above baseline. School-zone installs run higher per sign than standard parking signs because more of the panels use the more expensive fluorescent sheeting.
Cojo installed a 14-sign school-zone package at an Oregon City K-5 elementary school in March 2026:
Total project: $5,180 batched. The school had been running on faded original signs from 2014; the refresh restored ORS 811.235 enhanced-fine enforcement and was paired with a restripe of the drop-off-lane crosswalk and speed bump markings.
MUTCD Section 7B.08 requires fluorescent yellow-green on school warning signs (S1-1, S2-1, S3-1). Standard yellow is non-compliant on these specific designations. Mixing colors across the package fails inspection.
S5-1 reduced speed limit signs without S4-1P or S4-3P time plaques apply 24/7. If the intent is "during school hours only," the S4-series plaque is required to make the conditional restriction enforceable.
Using "SPEED LIMIT 20" without "WHEN CHILDREN PRESENT" or specific hours plaque creates a 24/7 restriction that conflicts with the surrounding posted speed limit. Drivers and enforcement both get confused.
S5-2 "END SCHOOL ZONE" signs at the boundary exit are required to terminate the zone for enforcement purposes. Without S5-2, the zone is technically open-ended and ORS 811.235 enhanced fines may not apply downstream of the last sign.
Cojo installs MUTCD S-series school-zone signs across Oregon K-12 schools, daycares, and university campuses with field-verified ORS 811.235 compliance and Type IV fluorescent yellow-green sheeting. Contact Cojo for a school-zone sign install quote.
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