When roads are accident prone and the subject of driver horror stories, you know something needs to change. That’s exactly what happened at Bulli Pass, a steep, winding section of the Princes Highway south of Sydney NSW Australia, where tight hairpin bends, low visibility, and heavy truck use made night driving a nerve-wracking gamble.
But now, after the Australian trial of glow in the dark road markings at Bulli Pass, the story has a new ending and it’s one that could soon be told on more NSW roads.
From Dangerous Descent to Safer Passage
In December 2024, Transport for NSW coated a 200-metre stretch of Bulli Pass with photoluminescent line markings, paint that soaks up sunlight during the day and then releases it as a glow at night.
Think of it like those glow-in-the-dark stickers you had as a kid but designed for real-world road safety. Once charged, these markings shine bright enough to be seen beyond a vehicle’s headlights, which means drivers get more warning before a bend, a turn, or a hazard.
The results were impossible to ignore:
- Night-time near misses dropped by 67% during the six-month trial.
- Actual road incidents fell by nearly a third.
- 83% of drivers said they felt more confident driving the section at night.
In a location where 10% of near misses occurred at night almost double the state average for regional roads that’s a major win.
The Problem These Lines Solve
Ask any road safety expert and they’ll tell you visibility reigns supreme. At night and in poor weather, drivers often don’t see hazards until they’re right on top of them. While street lighting can help, it’s expensive to install, costly to support, and not always practical in rural or environmentally sensitive areas.
Glow in the dark road markings work without electricity, last through rough conditions, and provide a constant, low-cost safety cue. They’re especially effective in areas where:
- Sharp curves appear suddenly after long, straight stretches.
- Heavy fog or rain makes reflective paint harder to see.
- Remote roads make lighting infrastructure difficult.
For Bulli Pass, the biggest benefit was visibility on its hairpin bend, which drivers could now spot well before headlights picked it up.
Not Just for Roads, a Future with Glow Everywhere
While the Bulli Pass trial focused on a short stretch of highway, experts are already talking about broader applications. This technology could transform:
- Bike paths — making cyclists more visible and guiding riders in low-light conditions.
- Footpaths — helping pedestrians navigate safely without the need for full lighting.
- Airstrips and helipads — offering crucial guidance where lighting power isn’t dependable.
- Car parks and industrial yards — where safety and efficiency are improved by clearly marked spaces and routes.
It’s not just a road safety upgrade; it’s an opportunity to reimagine visibility in public and private spaces.
What the Bulli Pass Trial Showed Us
The Bulli Pass section chosen for the trial wasn’t picked at random. Transport for NSW studied accident data and found:
- 125 near misses in 12 months.
- The steep descent and hairpin turn oversaw a large portion of those incidents.
- A disproportionately high number of nighttime incidents occurred compared to other regional roads.
By applying glow lines to that exact trouble spot, they could directly measure the impact, and it worked.
Transport for NSW is now reviewing other high-risk road corridors for future installation. And according to early indications, that rollout might not take long.
Lessons for Drivers
While technology like this is a game-changer, safe driving will always start with the person behind the wheel. Here’s how to use glow in the dark road markings to improve driver safety:
- Stay alert — Glow markings improve visibility but don’t replace driver focus.
- Adjust speed — The glow gives earlier warning, but taking a bend too fast is still dangerous.
- Use it as a guide, not a challenge — Glow markings highlight safe travel paths; they’re not an invitation to push limits.
Why Dolphin Line Marking is Watching Closely
At Dolphin Line Marking, we’ve spent decades perfecting the technologies of road, carpark, and safety line markings. This glow in the dark technology isn’t just impressive, it’s the kind of innovation we support and adopt.
Why? Because we know markings save lives. Every time we paint a centre line, a pedestrian crossing, or a cycle lane, we’re not just making things look neat, we’re creating signals that guide people safely from A to B.
And while traditional high-visibility paints have their place, photoluminescent technology launches an entirely new layer of safety as it’s:
- Sustainable — No electricity needed.
- Long-lasting — With the right application, these coatings stand up to weather and wear.
- Versatile — Applicable to a huge range of environments beyond main roads.
Could This Come to Your Local Roads?
With the Bulli Pass trial proving so effective, it’s highly likely we’ll see more of these glow lines on NSW roads, especially in regional and high-risk areas. The locations that might make the shortlist will likely have:
- A high volume of nighttime traffic.
- Curves or intersections with poor visibility.
- A history of crashes or near misses.
From a road safety perspective, this could be one of the simplest and smartest rollouts in years.
Where Dolphin Line Marking Fits In
When this technology expands, skilled application will be key. Glow coatings require:
- Specialised surface preparation to ensure the photoluminescent material bonds properly.
- Precision in line marking so drivers receive consistent, uninterrupted guidance.
- Ongoing maintenance schedules to ensure the glow stays bright and effective over time.
These are areas where Dolphin Line Marking excels. Our team has worked on high-spec projects where visibility and compliance weren’t just recommended, they were critical.
We’re ready for a future where safe night driving doesn’t rely solely on headlights and we’re ready to help councils, developers, and government agencies make it happen.
International Momentum
It’s worth noting that NSW isn’t the only region experimenting with glow technology. Trials have also taken place in:
- The UK, Ireland, and the Netherlands, where it’s trialled as part of broader road safety strategies.
- Victoria, which trialled it in 2022 but didn’t continue after limited results though the success in Bulli may spark renewed interest.
Each trial adds to the knowledge base and shows how small differences in climate, road type, and driver behaviour can influence results. Bulli’s success will likely be a case study for other regions aiming for zero road deaths and serious injuries by 2050.
A Brighter Road Ahead
Bulli Pass has gone from being a dangerous stretch dreaded by nighttime drivers to a testbed for one of the most promising road safety innovations in years.
Glow in the dark road markings don’t just make roads safer, they make them feel safer. And as any driver knows, confidence and visibility go hand in hand when it comes to avoiding accidents.
At Dolphin Line Marking, we see a future where this kind of technology is the norm, not the exception. Where every sharp bend, busy crossing, and rural descent is lit up just enough to guide drivers safely home, without the cost, energy use, and infrastructure of traditional lighting.
The Bulli trial proved it works. Now it’s time to put the glow to work in more places. And when that happens, you rely on Dolphin Line Marking light the way.
If you’re a council, developer, or facility manager looking to improve safety and visibility on your roads, car parks, or pathways, talk to Dolphin Line Marking today. We’re ready to help you bring cutting-edge marking technology to your project, because safety should never fade when the sun goes down.
More Information
Peter Siegmund
admin@thedolphingroup.com.au