Top Reasons Why Speed Humps Enhance Traffic Safety
- Anna Brake
- Jun 20
- 4 min read
Have you ever driven down a busy road and wondered why there are bumps on road surfaces? Or perhaps you’ve crossed a speed hump pedestrian crossing and felt reassured by the slower pace of passing vehicles. Speed humps and similar traffic-calming measures pop up in suburbs, shopping strips, and near schools across Australia. But what are speed bumps for, and how do they really improve traffic safety?
This post dives into the many ways speed humps, speed cushions, and speed bumps on public roads help keep drivers and pedestrians safe. We’ll explore the difference between these devices, discuss how they reduce collisions, and show you why local councils often support their installation. By the end, you’ll have a clearer view of how these simple structures can lead to positive outcomes for road safety, including fewer instances of speed bump damage to cars and improved driver awareness.
Setting The Scene: Why Focus On Speed Humps For Road Safety

Speeding remains a critical concern on many roads, often leading to crashes that cause injury or even loss of life. In Australia, state governments and local councils work tirelessly to reduce these statistics. Everything from humps ahead signs to speed cameras plays a part. However, among the many measures available, speed humps stand out as a straightforward and cost-effective method of slowing vehicles on public roads.
When installed near pedestrian crossings, schools, or shopping areas, these raised devices act as a physical reminder for drivers to ease off the accelerator. They create an environment where reckless driving is less likely to occur because it’s more difficult to maintain a high speed over humps in the road. Plus, once drivers are used to encountering traffic calming measures, they become more vigilant, which is a win for everyone’s safety.
What Are Speed Bumps And Why Are They Used?
Speed bumps, speed humps, and speed cushions might look similar, but they serve slightly different purposes. When you see a speed bump on highway segments like service roads, it’s designed to create a jolt or a sharp sensation that prompts drivers to slow down immediately. By contrast, speed humps are generally wider and less abrupt. They encourage lower speeds over a slightly longer distance, meaning drivers can maintain a gentle flow rather than slamming on the brakes.
Local communities often install bumps on road sections that pose safety risks. Perhaps a residential street sees too many speeding vehicles, or a campus area requires careful driver attention. By placing speed bumps or humps strategically, local councils make sure that drivers maintain a safer pace, protecting pedestrians, children playing near the street, or cyclists sharing the road. These devices also help limit speed-related issues such as tailgating, aggressive driving, and near-miss accidents.
Defining “Speed Humps” And “Speed Cushions” Vs. Speed Bumps
• Speed Humps: Wide, gently raised structures spanning the full width of a road. They’re intended to reduce speeds to around 20–30 km/h, ideal for areas near schools, parks, or other pedestrian hotspots.
• Speed Cushions: Similar in shape to humps but narrower, often placed in sets of two or three across the road. Large vehicles like buses or emergency vehicles can straddle them, while smaller cars must slow to cross.
• Speed Bumps: Taller and more abrupt than a hump or cushion, usually forcing speeds down to about 5–10 km/h. These can be found in places like car parks or private roads where very low speed is preferred.
The Impact Of Speed Humps On Public Roads
On public roads, speed humps can have a broader impact than simply reducing speed. By keeping vehicles at a moderate pace, they also limit the probability of tailgating and sudden lane changes. Both factors can lead to accidents if drivers aren’t paying attention. Slower speeds also give drivers extra time to notice pedestrians, cyclists, or unforeseen obstacles like animals crossing.
Moreover, motorists often find that when they drive more cautiously, they reach their destination feeling less stressed. This calmer mindset can improve the general mood on the roads. That sense of shared responsibility translates into safer driving, which makes public roads friendlier for every type of road user. Now let’s examine how speed humps contribute to pedestrian safety—another big reason they’re so valuable.
Speed Bump Safety: Reminding Drivers To Stay Vigilant.

There’s a reason you might see an older driver, who’s been behind the wheel for decades, still slow right down for a speed bump. It’s not just about avoiding speed bump damage to cars; it’s a learned habit that has become second nature. This habitual response can reduce collisions in the long run, as it normalises the practice of driving within safe limits.
Speed bump safety also extends to protecting your vehicle. Driving at a more controlled speed over humps can result in fewer shocks to the suspension, tyres, and overall mechanics. So, by looking after your own safety, you’re also looking after your car. Let’s see how this approach to driver awareness ties into broader community goals, especially when creating safer public spaces.
Speed Bumps On Public Roads: Local Council Policies
Local councils have policies that govern where and how to install speed bumps and other traffic calming devices. They consider factors like accident history, traffic volume, and community feedback. By consulting residents and business owners, councils can identify the best solutions for specific areas.
Policies often involve trials where temporary or portable speed humps are tested to see if they solve reported problems. If successful, they become permanent fixtures, along with signs like “Humps Ahead.” This consultative approach ensures that each community’s unique needs are met, ultimately creating safer public spaces that people can trust. Now let’s explore reason #8—why the versatility of speed cushions vs speed bumps matters in different road conditions.
Conclusion
Slowing down can be the difference between a near miss and a serious collision. Speed humps, speed cushions, and speed bumps may seem small, but they play a pivotal role in encouraging responsible driving behaviour. They remind people to brake, watch for pedestrians, and remain mindful of others sharing the road. By offering a straightforward and adaptable way to reduce speeding, these humps in the road foster safer spaces for families, shoppers, and everyday commuters.
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