Speed Cushions
5 Best Speed Table Designs for 2026
Cojo
Invalid Date
7 min read
A speed table is a flat-topped raised crossing roughly 22 feet long that slows passenger cars to 15 to 20 mph while letting transit buses, fire engines, and ambulances ride through with minimal disruption. The Federal Highway Administration's Traffic Calming ePrimer documents this device as one of the most emergency-friendly vertical deflection options available. The five designs below win on different jobs, from bus-corridor smoothness to brick-inlay aesthetics.
Cojo has installed and maintained speed tables across the Willamette Valley since 2014, including a 22-foot asphalt table on a Eugene neighborhood greenway that handles roughly 1,800 vehicles per day. Selection criteria below come from the Institute of Transportation Engineers (ITE) Traffic Calming Manual, Chapter 3, and the FHWA Traffic Calming ePrimer Module 3. Designs are ranked on five criteria: target speed reduction, emergency-vehicle delay, surface durability, life-cycle cost, and visual integration with the surrounding streetscape.
We screened 14 commonly specified speed table profiles against the ITE recommended cross-section (3 to 4 inch height, 22 foot total length with 6 to 10 foot ramps and a flat top of at least 10 feet). Designs that failed to meet ADA Standards section 403 cross-slope requirements when crossed by an accessible route were eliminated. The remaining five represent distinct material and geometry trade-offs.
The workhorse of municipal traffic-calming programs. Hot-mix asphalt construction with 6-foot parabolic ramps and a 10-foot flat top sits 3 inches above grade. Compatible with crack-seal and seal-coat maintenance using the same materials as the surrounding pavement.
A sinusoidal speed table replaces straight ramp tapers with a continuous sine-wave profile across the full 22 feet. Research published by the USDOT Volpe Center documents reduced vertical jolt for emergency vehicles compared to standard parabolic ramps. The profile is harder to form and costs more, but it is the right pick where fire response time is a critical metric.
A 22-foot speed table with brick or paver inlay on the flat-top section. Common in historic districts where city design review requires visual integration. The brick surface raises rolling resistance, reinforcing the speed-reduction effect. Asphalt ramps frame the inlay.
A bolt-down rubber speed table with steel-reinforced ramp sections. The full 22-foot footprint is assembled from interlocking modules anchored into existing pavement with concrete anchors. This is the only top-five option that can be deployed in under a day, and the only one that can be removed without saw-cutting the underlying pavement.
Cast-in-place concrete speed table, often used where heavy truck traffic would chew through asphalt ramps too fast. Edge detail (chamfered or rolled) prevents ramp scuffing from delivery vehicles. Compatible with brick or stamped-concrete inlay on the flat top.
| Use case | Top recommendation | Why |
|---|---|---|
| Residential greenway | Standard 22-ft asphalt | Lowest cost, blends into existing pavement |
| Bus or fire route | Sinusoidal profile | Smallest vertical jolt at target speed |
| Historic district | Brick-inlay | Meets design review, doubles as traffic calming |
| Pilot program | Modular rubber | Removable without permanent pavement work |
| Heavy-truck lot | Concrete with edge detail | Survives forklift and delivery vehicle wear |
Industry Baseline Range
| Design | Per-table installed |
|---|---|
| Standard asphalt | $5,000 to $9,000 |
| Sinusoidal asphalt | $6,500 to $11,000 |
| Brick-inlay | $9,000 to $15,000+ |
| Modular rubber | $4,500 to $8,500 |
| Concrete with edge detail | $8,000 to $14,000 |
Asphalt cement prices climbed roughly 18% across 2024 and 2025 per the Bureau of Labor Statistics PPI series WPU0581, and Oregon prevailing-wage rates for paving work moved with them. Traffic-control labor (flaggers, signage, advance warning) now runs 12 to 18% of the line item on streets where lane closure is required. For a sibling breakdown, see speed table cost.
On a 1,400-foot residential greenway in Eugene we installed three sinusoidal asphalt speed tables in the spring of 2025. The post-install speed study run by the neighborhood association measured 85th-percentile speeds drop from 31 mph to 21 mph, with a Eugene-Springfield Fire Department response delay of under 3 seconds per table. The greenway is on a fire-access route, so the sinusoidal profile was specified explicitly to meet department guidance under NFPA 1141 for residential fire-apparatus access.
Three questions decide it. First, does an emergency vehicle or transit bus use this street? If yes, sinusoidal or brick-inlay. Second, is removal a possibility within ten years? If yes, modular rubber. Third, is traffic dominated by passenger cars or by trucks? Trucks push you toward concrete; cars let asphalt designs win on cost.
For a fuller decision framework see the speed tables guide, and for the comparison most buyers ask first see speed table vs speed bump.
Cojo provides commercial speed table installation across the Oregon I-5 corridor. We handle survey, design review submittal, traffic control, and pavement marking in one scope. For local context see Speed Table Installation Portland or pair the install with our asphalt maintenance services. Get a custom quote.
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