Why Should Speed Cushions Be Installed?

Why Should Speed Cushions Be Installed?

Controlling vehicle speeds is a key part of keeping our streets, parking areas, and pedestrian zones safe. Speed Cushions offer an effective, practical solution that slows traffic without compromising comfort or accessibility for larger vehicles like buses and emergency services.

In this post, we’ll explore why Speed Cushions are essential in Australia, how they are designed to meet safety standards, and how the Piano Key Design Rubber Speed Cushion Set from Safety Xpress provides a versatile and durable option for a variety of environments.

Effective Vehicle Speed Control

Properly designed speed cushions slow traffic without causing discomfort or vehicle damage. A depth of approximately 2m ensures both the front and rear wheels rise smoothly at typical urban speeds (40 - 50 km/h). Cushions that are too short may be bypassed by drivers, while those that are too long can be uncomfortable and risk undercarriage contact. The 2m dimension provides a firm yet comfortable rise and fall that effectively reduces vehicle speed.

Accommodation of Larger Wheelbases

In Australia, most passenger and light commercial vehicles have wheelbases between 2.5m and  3m. A 2m cushion ensures that at least one axle is always on the cushion, reducing speed while allowing wider vehicles - including buses and emergency vehicles to pass by safely.

Compliance with Australian Design Standards

Speed cushions are designed according to recognised standards and local traffic management guidelines, including the Austroads Guide to Traffic Management (Part 8). These standards recommend:

• A depth of 1.6m – 2.0m
• A height of 65mm – 75mm
• Adequate spacing between cushions to allow wide track vehicles to pass with minimal impact

Adhering to these guidelines ensures cushions provide both effective speed reduction and a safe, comfortable experience for all road users.

Optimised Balance Between Speed Reduction and Comfort

Cushion dimensions also influence noise, vibration, and vehicle wear. Shorter bumps can produce abrupt jolts, while longer ramps increase vibration and potential wear. A 2m cushion provides the ideal compromise, offering a smooth crossing while maintaining its speed calming effect.

Our Piano Key Design Rubber Speed Cushion Set is expertly engineered to reduce vehicle speeds, minimise noise, and improve safety across roads and parking areas. Ideal for residential streets, commercial spaces, and bus lanes, this set offers a durable, versatile, and reliable traffic-calming solution.

Made from high quality rubber, the modular design allows for quick installation and easy adaptability to suit different environments. Speed Cushion Kits are available from 1.5m to 3m, or you can combine the Middle and End sections to create cushions in your required length.

For custom configurations, contact our team on 1300 049 246 or sales@safetyxpress.com.au for a tailored quote.