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Safe System Snippet 552: Lane Filtering – the cons
Lane filtering is when a motorcyclist moves through slow or stationary traffic at low speed (typically under 30 km/h), usually making their way toward the front of the queue at traffic signals. The theory is that riders position themselves away from rear end crash...
Safe System Snippet 551: Compound Curves and Motorcyclists
A compound curve is a curve that tightens part way through. These layouts can be particularly dangerous for motorcyclists because riders often select their speed and line based on the first curve radius. When the curve suddenly tightens, there is very little time or...
Kenngineering Notes: Motorcycles in Bus Lanes Trial
I was just re-reading the Victorian Government’s summary report on the evaluation of motorcycles in bus lanes trial. Safe System Solutions conducted the Road Safety Audits for the trial sites, and it was very reassuring to see so many of our recommendations...
Kenngineering Notes: Throwback to Safe System Snippet #65
I still maintain the Victorian Government should have accepted my moustache as an N95 mask. Now, back to the point of this post:I was explaining Abraham blockouts, RocketBloc, and Ezy-Lift to one of our graduate engineers the other day and dug out Safe System Snippet...
Kenngineering Notes: To my Auckland friends… it’s on… ROADS & STREETS TRIVIA
To my Auckland friends… it’s on… ROADS & STREETS TRIVIA (with all the Safe System Solutions quirky additions) 𝙒𝙝𝙚𝙧𝙚’𝙨 𝙩𝙝𝙞𝙨 𝙨𝙥𝙚𝙘𝙩𝙖𝙘𝙪𝙡𝙖𝙧 𝙝𝙖𝙥𝙥𝙚𝙣𝙞𝙣𝙜? The Cav, Auckland. 𝙒𝙝𝙚𝙣 𝙙𝙤 𝙄 𝙣𝙚𝙚𝙙 𝙩𝙤 𝙛𝙞𝙣𝙙 𝙖 𝙗𝙖𝙗𝙮𝙨𝙞𝙩𝙩𝙚𝙧? Tuesday 26 May, 5:30pm for a 6:00pm kick-off 𝙄𝙨 𝙩𝙝𝙞𝙨 𝙟𝙪𝙨𝙩 𝙨𝙤𝙢𝙚...
Kenngineering Notes: Back to ScootSchool
There’s a lot of discussion right now about the risks of e-mobility. And plenty of ideas being thrown around on what we should do about it. But here’s the thing – there’s already a proven program… 𝙎𝙘𝙤𝙤𝙩𝙎𝙘𝙤𝙤𝙡 has been around for over 2 years. It’s an Australian...
Safe System Snippet 550: Barrier Test Level Selection
Watch this. A heavy vehicle departs its lane and impacts a central barrier. There is little to no median here, so the barrier becomes the primary defence against a crossover into the opposing carriageway. This is exactly the scenario the system needs to manage....
Introducing 𝙎𝙖𝙛𝙚 𝙎𝙮𝙨𝙩𝙚𝙢 𝙁𝙤𝙧𝙚𝙣𝙨𝙞𝙘𝙨
I get asked a lot if I do expert witness work. The answer is yes. But I also say no… quite a bit. Sometimes it’s ‘no’ due to conflicts. Sometimes it’s ‘no’ because I’m not the best person for that specific topic.... and that second one is important. In legal cases,...
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Safe System Snippet 549: Surface Defects on Curves – Deadly for Riders
When a motorcyclist hits a surface defect in a curve, the margin for error is almost gone. The rider and bike are already leaned. The centre of gravity is shifted. Grip is relying on two small tyre contact patches. That is all that is holding the system together. Now...
Upcoming Road Safety Barriers technical training course
Here’s what people are saying about the Road Safety Barriers technical training course: "𝘊𝘰𝘯𝘵𝘦𝘯𝘵 𝘴𝘵𝘳𝘶𝘤𝘬 𝘵𝘩𝘦 𝘱𝘦𝘳𝘧𝘦𝘤𝘵 𝘣𝘢𝘭𝘢𝘯𝘤𝘦, 𝘪𝘵 𝘸𝘢𝘴 𝘢𝘯 𝘪𝘯𝘵𝘳𝘰𝘥𝘶𝘤𝘵𝘪𝘰𝘯 𝘵𝘰 𝘣𝘢𝘳𝘳𝘪𝘦𝘳 𝘥𝘦𝘴𝘪𝘨𝘯 𝘢𝘯𝘥 𝘤𝘰𝘯𝘴𝘪𝘥𝘦𝘳𝘢𝘵𝘪𝘰𝘯𝘴 𝘣𝘶𝘵 𝘵𝘩𝘦𝘯 𝘦𝘹𝘱𝘢𝘯𝘥𝘦𝘥 𝘰𝘯 𝘵𝘩𝘢𝘵 𝘵𝘰 𝘤𝘰𝘷𝘦𝘳 𝘰𝘧𝘧 𝘰𝘯 𝘵𝘩𝘦 ‘𝘦𝘯𝘨𝘪𝘯𝘦𝘦𝘳𝘪𝘯𝘨’. 𝘔𝘢𝘯𝘺 𝘤𝘰𝘶𝘳𝘴𝘦𝘴 𝘤𝘢𝘯 𝘣𝘦...
Kenngineering Notes: I’m going to need some help understanding this one
We get sent a lot of videos to turn into Safe System Snippets (we’re up to 548 so far – you can check them all out here). But this one, sent through last week, has genuinely stumped us. It’s just hard to tell what’s actually happened here.Is it a surface issue?Is it...
Safe System Snippet 548: Longitudinal Grates and Bikes
One small detail can have very big consequences. Most people drive past them without a second thought, but for someone riding a bike, the wrong grate can mean an instant crash. The biggest issue is the longitudinal grate, where the bars run in the same direction as...
Safe System Snippet 547: Don’t they Freeze?
Barrels are very rarely used in Australia or NZ as a crash attenuator, but they are far more common in places like the USA and Canada, particularly on high-speed freeways and at gore areas. People often call them “water filled barrels” and assume that in winter they...
Kenngineering Notes: Transport Trivia Night returns
It’s back. Transport Trivia Night returns as part of the Conference Plus program at the National Transport Conference in Brisbane. If you’re coming along, make sure you book your ticket early because places are limited. A fun night of transport themed trivia, games,...
Safe System Snippet 546: Motorways in the Safe System
Motorways are often some of our most Safe System aligned roads from a civil infrastructure perspective. They usually have continuous barrier systems, no side impact intersections with poor angles, grade separation, and limited interaction between vulnerable road users...
Kenngineering Notes: This week on our Road Safety Audit course in Queensland
There’s a trainer/facilitator trick I keep coming back to. Don’t do the recap. Get the participants to do it. This week on our Safe System Solutions Road Safety Audit course in Queensland, I was super pleased with the outcome. Instead of me summarising the previous...
Yanelle Lovis joins Safe System Solutions as Senior Design Engineer.
Yanelle Lovis joins Safe System Solutions as Senior Design Engineer. We are delighted to welcome Yanelle to the Safe System Solutions team, further strengthening our rapidly growing road and street design offering. Yanelle’s experience primarily spans highway...
Safe System Snippet 545: Frangible sign posts (not just light poles)
When we talk about roadside safety, frangible light poles often get the attention. But there is a specific Road Design Note in Victoria that deals with frangible sign posts (RDN 06-09). This note makes it clear that only approved frangible systems should be used on...
Safe System Snippet 544: What actually is an eBike?
The deluge of footage of powered devices continues to flood into our inbox here at Safe System Solutions. We posted one last week and incorrectly referred to an illegal powered device as an eBike. While it was a bike powered by an electric motor, it did not appear to...




















