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Safe System Snippet 329: Median Barriers; real infrastructure.
Paint won't protect. Physical infrastructure is needed for safety in high-speed environments. Flexible road safety median barriers are installed along the centre of the road to prevent head-on crashes, which are one of the most common types of fatal crash. They work...
Safe System Snippet 328: Evaluation of pedestrian and cyclist friendly roundabout
Safe System Solutions Pty Ltd conducted an evaluation of road user behaviour and their perceptions of safety at the Moray Street protected roundabout. Our evaluation found increased usage by both pedestrians and cyclists, large increases in perceived safety for both...
Safe System Snippet 327: Zebra Crossings; not the safest
At-grade pedestrian crossings (AKA Zebra Crossings) leave the potential for high-speed crashes to occur. The Crash Reduction Factor/Crash Modification Factor for these facilities varies wildly amongst studies from around the world from a reduction in pedestrian safety...
Safe System Snippet 326: Reverse Angle Parking
Converting angle parking to parallel parking reduces casualty crashes by up to 35% (Elvik and Vaa, 2004). The awkward sight lines for drivers reversing out of angle parking causes them to be more likely to miss a vehicle in the through lane. This is particularly the...
Safe System Snippet 325: Intersection crashes
When people think about intersection crashes, they usually conjure up an image of a vehicle-to-vehicle crash. Or perhaps a vehicle to bike or pedestrian crash comes to mind. And while these are certainly major issues at intersections, there is also an increase in the...
Safe System Snippet 324: Safe System advertising
We asked our engineers to come up with some advertising for Safe System engineering stuff. Can you guess where they got their inspiration?
Safe System Snippet 323: Compact Urban Roundabouts
Safe System Solutions completed an independent evaluation of the effectiveness of this compact urban roundabout in Mildura. It showed a 19.20km/h reduction of entry speed (average), with new 85th percentile speed of entering vehicles of 19.26km/h (and 99th percentile...
Safe System Snippet 322: Offset Rural Channelised Left Turn Treatments
Austroads Guide to Road Design Part 4A now includes a section on Offset Rural Channelised Left Turn Treatments. This was added as part of the 2023 update in response to many jurisdictions facing the dynamic visual obstruction issue of left turning vehicles masking the...
Safe System Snippet 321: We love a raised safety platform
If you’ve been following us for a while, you know we love a raised safety platform. Here’s another case study/fact sheet to add to the collection. Thanks Waka Kotahi – New Zealand Transport Agency.
Safe System Snippet 320: Car vs Tram
Melbourne boasts the world's largest tram network, however, sharing the road with cars presents many safety challenges. A study by Monash University (Naznin et al.: Exploring the impacts of factors contributing to tram-involved serious injury crashes on Melbourne tram...
Safe System Snippet 319: Active Advanced Warning Signs (AAWS)
Active Advanced Warning Signs (AAWS) have been shown to reduce risk at railway level crossings by effectively alerting road users to the presence of a train in advance of the crossing. They are particularly useful and effective in adverse weather conditions, where...
Safe System Snippet 318: High Profile Barrier Kerbs
There are a variety of High Profile Barrier Kerbs available. Midwest profile has been tested under NCHRP 350 Test Level 2, vehicle speed 70km/h, impact angle 25 degrees and vehicle mass 2000kg. VicRoads RDN03-01 states it should only be considered where operating...
Safe System Snippet 317: Speed management interventions
“While studies show the education on road safety in schools does improve knowledge [1], there is no evidence that this knowledge changes the safety level of on-road behaviour [2]. There even is a risk that increased knowledge increases confidence and risk-taking. Even...
Safe System Snippet 316: ‘Safe Drivers’
Nearly 60 per cent of serious injury crashes in Victoria involved driver(s) that were defined as ‘Safe Driver(s)’ in the ECIS. They were: Wearing a seat belt Within the speed limit Not handling a mobile phone. Within the BAC for their licence class Not using...
Safe System Snippet 315: Thank all the SES volunteers
Emergency service personnel are passionate about the life saving properties of road safety barriers. Roadside and median barriers prevent serious injuries and deaths on the roads. We want to thank all the SES volunteers out there working tirelessly to protect our...
Safe System Snippet 314: Rural roundabouts
Roundabouts are the best at-grade intersection form for rural areas when we look at protecting the travelling public. The reasons for the super safety levels at roundabouts in rural areas are: Fewer conflict points in comparison to conventional intersections. The...
Safe System Snippet 313: The heightened risks motorcyclists face on the road
This recent viral video serves as a stark reminder of the heightened risks motorcyclists face on the road, where even minor errors can have potentially devastating consequences. Due to their lack of protective enclosure, motorcyclists are classified as vulnerable...
Safe System Snippet 312: Wide centerline treatments
Wide centerline treatments can reduce cross centerline fatal and serious injury crashes by up to 30%. Often lanes can be narrowed to accommodate the treatment and the wide centerline is best complemented with audio tactile edge line and centerline. While a central...
Safe System Snippet 311: Sharing the Road: Trucks and Bikes in Urban Areas
Two transport modes that continue to grow in volume in urban areas are bikes and trucks. While this presents exciting opportunities for sustainable mobility and economic growth, it also raises concerns about safety. A 2018 study by Pokorny et al., titled: Conflicts...
Safe System Snippet 310: Road maintenance envelope
A road maintenance envelope should be maintained to ensure that larger vehicles can safely travel along a route without striking vegetation. The envelope extends over the roadway and shoulder and is expressed as the vertical clearance. While the dimensions may vary...