We supply and install asphalt speed humps and speed tables for commercial carparks, private driveways, industrial yards and residential estate roads across the Central Coast. Speed humps are built from hot-mix asphalt and formed to AS 1742.13 height and profile dimensions.
A poorly formed speed hump creates tyre damage, noise complaints and a trip hazard for pedestrians. We form each hump to the correct height and taper profile, compact to density, and apply line marking and signage as part of the same scope. No sub-contracting, no mismatched trades on-site.
For commercial carpark operators and strata managers, we handle the full scope: design, installation, line marking and any associated drainage work. We can coordinate with your council if speed humps are required in a private road under a developer contribution.
AS 1742.13 Compliant
Height, width and taper profile built to the Australian Standard. No guesswork, no complaints from council.
Hot-mix Asphalt
Formed in the same AC10 or AC14 mix as the surrounding pavement for a consistent, durable finish.
Line Marking Included
Yellow warning markings and kerb approach markings applied as standard. Signage available.
Drainage Maintained
Profile designed to maintain drainage fall through the hump so water does not pond at the kerb.
Fast Installation
Most carpark speed hump scopes completed in a single day. Minimal disruption to operations.
Anatomy of a compliant speed hump
A hump is a shape, not a lump of asphalt. Here is the Watts profile we form in hot mix on your existing pavement.
- Watts profile 3.7m, 75 to 100mm
The circular profile is the whole point. At the target speed it reads as a gentle rise. Take it faster and it gets harsh quickly, which is the job. Guess the shape and you get neither.
- Tack-bonded to the existing surface
The pavement is cleaned and tack-coated before the hot mix goes down, so the hump is keyed to the surface instead of sitting on it. Unbonded edges lift and break away under traffic.
- Markings and advance signage
Yellow warning markings on the approach faces and advance signage so drivers see the hump day and night. This is the first thing council looks at, so we apply it in the same visit.
- Flat-top option speed table
A longer flat plateau with ramped approaches, used where pedestrians cross or buses run. On bus routes the plateau needs to be at least 6.0m long with ramps of 1:15 or flatter.
A hump formed to spec slows cars to the speed it was designed for without punishing every suspension that crosses it. One guessed by eye does neither.
Diagram shows typical construction sequence for standard site conditions on the NSW Central Coast. Actual scope, depths, and materials are determined on-site, as conditions vary by substrate, drainage, and access. Speak to our crew for an assessment specific to your project.
The Process
Every job follows the same standard. No steps skipped, no quality shortcuts.
Location and Profile Design
Confirm hump positions, check drainage fall, select profile type (hump or table) to AS 1742.13.
Surface Preparation
Existing surface prepared, tack coat applied to bond the new asphalt to the surrounding pavement.
Forming and Compaction
Hot-mix placed and hand-formed to the specified height and taper, compacted to density.
Marking and Signage
Yellow line marking applied, signage installed where required. Site ready same day.
Frequently Asked
Questions specific to Speed Humps on the Central Coast.
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What is the standard height for an asphalt speed hump in a carpark?
Under AS 1742.13, speed humps in private roads and carparks are typically 75mm to 100mm high with a 900mm to 3600mm plateau width depending on the desired vehicle speed. We confirm the profile during the design stage based on your site speed requirement and vehicle types.
Can speed humps be added to an existing asphalt carpark without full resurfacing?
Yes. Speed humps are bonded onto the existing surface using a tack coat. As long as the surrounding pavement is structurally sound, there is no need to resurface the whole carpark. We assess the condition of the existing pavement around the proposed hump locations as part of quoting.
Do you supply signage and line marking with speed hump installations?
Yes. We include standard yellow warning line marking on the approach faces of the hump and can supply and install signage. If your local council or body corporate requires specific signage under their traffic management standards, we can accommodate that specification.
- Hump height guessed rather than formed to AS 1742.13 height and taper dimensions
- Wrong taper profile, causing tyre damage, noise complaints and pedestrian trip hazard
- Not bonded to the existing surface with tack coat, so the hump shifts under traffic
- No warning line marking applied on approach faces, so council requires immediate rectification
- Drainage fall not maintained through the hump, so water ponds at the kerb
- Installed by a concreter or landscaper, not a licensed pavement contractor
Council issues a defect order. Hump removed and redone at full cost, plus disruption.
Glenn and his team were terrific. Such a difficult job made to look easy.
Garry Parnell
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Speed Humps
Free site visit. Prompt written quote. No obligation. Central Coast NSW.