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Roundabouts reduce casualty crashes by 75% for all vehicles, yet when looking at motorcyclists in particular, they only reduce casualty crashes by 37%. [update note: Scully, J. H., Newstead, S. V., Corben, B. F., & Candappa, N. L. (2009). Effect of past black spot...

Active Advanced Warnings Signs (AAWS) should be used in advance of traffic signals where sight distance to signals or a potential back-of-queue is limited. They are also used in locations where drivers have a lowered expectation of signals, for example, when driving...

Line marking should be clear, consistent and correct. For a pedestrian crossing (aka zebra crossing) or wombat crossing this must be white lines on a contrasting background (see AS1742.10) . This can be hard to achieve when using a concrete surface. If the use of...

Friday Safe System Sketch.Have a good weekend.

To perform satisfactorily, safety barriers must have sufficient length to enable vehicle redirection. In addition, barrier end terminals require sufficient support to perform (absorb energy and anchor the system) as designed and tested. When crash testing a barrier,...

Because of the cost of structures (bridges, culverts, etc.) these are often a narrow point within the road network. The risk or run-off-road crashes on the approach to, and throughout the structure increases. As a result, it is important to have well designed and...

Friday Safe System Sketch.One for the signals engineers.Have a good weekend.

Distracted pedestrians – what are the numbers?  Williamson & Lennon (2015) asked 211 pedestrians in Brisbane to self-report their smart phone use while crossing the road. The 18-30 year olds (56% of the sample) reported particularly high levels of mobile phone...

Our engineers are at it again...Friday's Safe System Sketch.Have a good weekend.

Lateral Protection Devices (LPDs) fitted to trucks are an effective way to lessen the severity of a crash with a pedestrian or cyclist. According to Knight et. al (2005) the effectiveness of LPDs in preventing fatalities in crashes with the side of large trucks range...

Floating bus stops – solving the bike/bus leapfrog.  A ‘floating bus stop’ is created when the entire bus stop 'floats' between the traffic lanes and cycle paths. This creates separation of the cyclist lane from both vehicular traffic (including the bus) and from...

Friday's Safe System Sketch.Enjoy your weekend.

At road works, advance warning is critical for road users, giving them time to process information and slow down on the immediate approach to the work area. The advance warning area is the section of highway where road users are informed about the upcoming work zone...

Friday's Safe System Sketch. Have a good weekend.

Thanks to all those that supported our cycling team as we rode for the Amy Gillett Foundation Giving Day. In Australia a cyclist dies every 9 days. Cycling deaths are preventable. Help the Amy Gillett Foundation save lives, and make Safe Roads for Safe Cycling. AGF...

It’s well known that children are more likely to be involved in a crash. The reasons for this include that they have difficulty judging speed and distance, seeing objects in their peripheral vision, identifying the direction of traffic, are smaller and more easily...

Ever wonder how wire rope safety barriers are repaired after they’ve saved someone’s life? Check out this 1 minute video on the process.  Source: TAC

Friday Safe System Sketch time... Have a good weekend.

What influences drink driving?• Compared with sober drivers, drink drivers are significantly more likely to be alcohol dependent.• Compared with sober drivers, drink drivers are significantly more likely to be male, have lower socioeconomic status, and no academic...